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Search - "sql"
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Manager: "we need an SQL database"
Dev: dude does he even know what he's talking about
Dev: "so which color?"
Manager: "idk well I think a blockchain has the most RAM"11 -
So I went for interview today.
.
.
Interviewer : Can u give some theory test about php?
Me : Sir, Can u please open your site?
Interviewer: sure 🙂
Me : Sir, I just logged in as Owner of ur company, Your site is not protected from sql injection.
Interviewer : 😌😌
Me : Sir, test?? 😜
xxxxxxxxxxx -------------------- xxxxxxxxx21 -
Fucked up an sql join once and accidentally deleted myself from the employee table in the prod database. So I kinda fired myself... Good thing we had backups. 😂2
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Mom:What are you studying?
Me:Types of SQL Injection
Mom:U r in engineering?Right?So why are u studying types of Injections?
Me:🤦♂️😂😂10 -
Company: "We'd like to use SQL Server Enterprise" MS: "That'll be a quarter million dollars + $20K/month" Company: "Ok!" ... Company: "We'd like to use Babel" Babel: "Ok! npm i babel --save" Company: "Cool" Babel: "Would you like to help contribute financially?" Company: "lol no"3
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I worked on a greenfield project a couple of years ago. The company had an old solution written in Omnis (heard of it? Yeah, me neither) with an SQL database. My team was to create a completely new web based system... on top of the old database, so the customers could keep their existing stuff.
The dba was an intelligent man, one of the nicest people I've met, and over the course of fifteen years he had made a remarkably terrifying monstrosity of a database. Some years before me they wanted to "future proof" the system and make it "easier to switch to new technologies". So they moved the entire business logic into the database...
I used a tool to create a visualization of said database when we started. It had no views, only tables and sprocs. Look at it! Tables and sprocs are rectangles (well, dots) and any connections are drawn in grey lines. There were no foreign keys, so a tables only visualization only yielded a collection of independent rectangles without a single line.
Now, the stored procedures were bloody MASSIVE. A single procedure that only registered a new interested party and attached them to a property had 2500+ lines and over 150 parameters.
Also, this dba added features and fixed bugs by logging into the respective customers production server and writing SQL.
That database is the stupidest thing I've ever seen a developer do.35 -
I remember some years ago when a professor asked -
"What is the difference between SQL and MySQL?"
And one of the students answered -
Uh... I don't know... SQL is more like a general SQL and MySQL is a personal SQL...
:|7 -
When you see a web service API accepting a SQL query in one of its JSON fields and the evil starts growing within you..
DROP ALL DATABASES
Just because you can!4 -
Just found out there's a legit Dutch DJ call "SQL".
Guess what type of posts he's being tagged in mostly?8 -
FML. An overreaching supergenius "architect" and a database team:
A: "We have decided that apps should use mysql. Install a MySQL so we match cloud"
DBA: "we don't have an image or experience with MySQL. We have mssql and Oracle "
A: "ok, use mssql in data center and mysql in production cloud"
DBA: "that's... not going to work well"
A: "just do it!"
...
Me, reading this shit, sends email: "ignoring the fact that we have more than 500 queries in this application which will need to be checked and most likely rewritten, how are we supposed to test the mysql queries without production access?"
A: "just use mssql local and MySQL in cloud"
M: "... Just to make sure I understand, you want us to write queries for mssql, test them locally, and then write separate queries, with a separate SQL connection abstraction that deploys to production? Again, how are we going to test this?"
A: "no, use same queries, should be fine"
M: "they really won't, they're different dialects"
A: "do the needful, make work!"
If karma were a thing, this person would have long since exploded into a cloud of atomized blood.20 -
If you thought your legacy code was bad, this is what I'm dealing with. The below SQL is stored in a cookie on login and executed to on every further request to determine the user / privileges.15
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You know you've had to deal with a tough database problem at work when you start seeing SQL in your own kitchen... (It says SOL meaning salt)
P.s. I sure hope this is how these memes work, because I want my avatar16 -
The moment when you realize you just ran a SQL update with a ';' before the WHERE clause............fml10
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We had issues with lack of disk space on our production SQL server. Another developer decided to delete the databases he thought weren't in use to clear some space.
Ever think about checking first?!
Production chaos!7 -
Me: Enters SQL class
Prof: We will draw ERD diagram on awwapp
Me: (In my head - I hate ERD diagrams) start drawing the first ERD diagram
Prof: That diagram is wrong
Prof: opens SQL Activities_Solution.pdf on his PC
Me: Tried to change the file name on aws to get solution file - fail
Copy SQL Activities.pdf file url (https://url/courses/6429/...). Adds 1 to 1100726 = 1100727 and downloads SQL Activities_Solution.pdf
Open PDF in one tab and awwapp on another and just draw the solution
Prof: Are you sure this diagram is corect?
Me: (In my head - I copied the solution so yes) ...
Prof: Let me check the question
Me: (In my head - seriously? you don't know the answer)
Prof: Checks the correct answer on his PC and then checks the answer on my PC
Me: (In my head - completed another boring uni class) pack up and go home8 -
I recalled a seemingly simple task I took on.
We were building a booking system, and I had to figure out how to retrieve bookings by a certain date range.
Upfront, the tasked seemed simple until I realised I had to both figure out the logic and the SQL statements needed to retrieve all bookings within a certain date range in one query.
I ended up drawing a model to help me visualise the various date-range criteria to be satisfied. And used unit tests to help me think through each date range criterion and make sure they were accurate. Some were obviously from paranoia, but better to be safe than sorry...
After that, I had wrote down raw SQL directly into Sequel Pro first to make sure my query logic was accurate too, before translating into something the ORM equivalent. This was when I learned how to define and use variables in SQL. The variables were throw-away code; I just didn't want to have to hard-code the test date-ranges over and over again; minimise chances of spelling errors.
Needless to say, felt my problem-solving skills went up one level after this task. Saw my coding style and unit tests improve. And also the thought processes that go into how to maintain code quality...4 -
4 years ago, during our college, a friend of mine was explaining us about hacking using simple SQL injections. He showed us some of the sites he hacked. Out of curiosity we tried it on college internal website it worked. We had access to all the details of all the students in university, and even the lecturer's information. We informed the management , they were shocked on seeing this. They had just spent 25 lakhs for this website couple of months ago.6
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This fucking stupid asshole developer, wrote every single SQL execution with string formatting. Made me a full sleepless night fixing this shit. Isn’t this a classical SQL injection sample?15
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1. Buy a road
2. Name it after an sql injection
3. Have mail delivered to you
4. ...
5. Profit... I guess?7 -
me: oh you can add a where clause to filter xxx out with your group by.
arrogant junior: whuuut? you can use where clause with group by ? No u can't!
me: err... yes you can...
arrogant junior: NO!!!! No it doesn't work that way!
me : okay okay... fine ...
**30 mins later**
i see a where clause in the sql statement lol...I don't know why this person is always so pissed and fierce lol6 -
Had a fight with a teacher today, he was teaching PHP to some new students, and I was doing my own stuff, then I suddenly saw a example of his code
Unsanitized SQL query staring at me
I asked him if there was sanitization anywhere in the code
He said: "We don't need to teach that stuff, it just confuses the students, that stuff belongs to advanced course or something."
I decided to give him the facts but no, still the same statement
Next time I'm going to drop his tables😠10 -
Someone wanted to test if the I-Scout game was capable of preventing SQL injections 😂😂
The I-Scout game is by the way an indoor and outdoor game for scouts all over the globe..2 -
Easy cop out for people who wrote code vulenerable to SQL injection: It's not a bug, it's a feature that let's users search using SQL syntax.1
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Got hired as an SSRS engineer. Walked into work day 1 thinking I was a bad ass with my SQL joes2pros knowledge and quickly (and i mean quickly) got smacked down with what real SQL procs look like........should've renamed my title to SSRS reverse-engineer. Good times.2
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This was WAY back in my first job as a programmer where I was working on a custom built CMS that we took over from another dev shop. So a standard feature was of course pagination for a section that had well over 400,000 records. The client would always complain about this section always being very slow to load. My boss at that job would tell me to not look at the problem as it wasn't a part of the scope.
But being a young enthusiastic programmer, I decided to delve into the problem anyway. What I came to discover was that the pagination was simply doing a select all 400,000 records, and then looping through the entire dataset until it got to the slice it needed to display.
So I fixed the pagination and page loads went from around 1 min to only a few seconds. I felt pretty proud about that. But I later got told off by my boss as he now can't bill for that fix. Personally I didn't care since I learned a bit about SQL pagination, and just how terrible some developers can be.5 -
Senior showing fellow intern what SQL injection is on the app the intern created :
Senior : "then I hit enter and the query get executed and...
Intern : "don't you dare hitting enter!!!"4 -
Hah!
I just broke my record and generated (not exported or imported) the biggest SQL file!
A massive 15.7GB SQL file monster.
I hope the import will go well.6 -
Dear weird stackoverflow,
What SQL knowledge do I need to hack devRant and get an avatar on here ?18 -
According to my predecessor, nothing showcases your SQL skills quite like generating the entire page (markup, JavaScript and all) from a single 2500 line query.7
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> Young dev apprentice me pair programming with another developer
> Dude checks bug report of a customer, saying something about a "Blind SQL Injection"
> Young me asking what that "Blind" part means
> "Dunno man, maybe u gotta close your eyes when hacking this"
Guess what, the issue was never fixed -
Whoever thought setting up SQL database connections through XML was a good idea needs to be put on trial. And then exiled to a deserted island so they can think about all the pain they put me through.5
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Did some updates to an older Web Forms website built by a previous SENIOR developer who is a notoriously horrible developer.
Now before I start, you have to understand this guy studied at a University and had been working for at least two years before I even started working. He is supposed to know the basic shit mentioned below.
This also happened a couple of days ago, so I have calmed down since then so I apologise for the relaxed tone. My next rant will contain a lot more swearing.
This fucking guy did the stupidest shit imaginable.
On the details view of a post|page|article|product|anything that would require a details view this jackass would load the data from the DB.
Using an OleDbConnection, OleDbDataAdapter, DataTable and the poorest writter fucking sql statements you have ever seen. All of these declared in the Page_Load method.
There was literally no reason for him to use OleDb instead of Sql, but he simply did not know any better.
He especially liked: "select * from tbl where id = " & Request("T") & ""
ZERO fucking checks to see if the value is even passed or valid, nothing. He did not even check whether the DataTable had any rows.
He then proceeded to use only the Heading column of the returned row to change the page's title.
Stupidly I assumed the aspx page will be in a better state. Fuck NO!
This fucktard went, added server tags to the opening of the asp:Content tag, copied that shit he used to fetch the data and pasted it between the server tags.
He did not know how to access the DataTable mentioned above from the aspx page!
He did this on every fucking project he worked on. Any place that required <%= %> to display data instead of using asp server controls, this cunt copied whatever was written in the code behind and pasted everything between server tags.
Fuck I could go on forever, but I think this is enough for my first rant.2 -
I was to optimise a SQL query (7 min to execute,yes) with around 20 joins (I did not write this). Checked for missing indexes,etc.. but nothing worked. Stared outside the window, and back to desk reordered the joins ,executed in 10 secs.1
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How do you pronounce SQL?
"See for me, I just go my own way and pronounce it as ‘sqwool, or ‘sqwll’, which sometimes gets my coworkers (not db or programming people) calling it ‘Squirrel’. As such we have a custom written utility program which automates running certain SQL commands on various databases which is aptly named SQuirreL. Then we started to have fun with it: The ‘pre-defined’ sets of SQL are held in a ‘.nut’ file which you give to SQuirreL. When you want to see what scripts have been run, you check the SQuirrel’s .log to see what .nut files it has ‘eaten’. We thought about naming the log files .poop, but I felt that was too far. I know right now there’s people reading this cringing, but I say lighten up. My boss when presented with the tool, did not get ANY of the Squirrel/nut references… I mean the tool’s icon was a cartoon squirrel holding an acorn for crying out lout, but I digress.
So yeah, I call it Sqwll or Sqwool, but only when talking to people who don’t matter."
Source, in the comments: http://patorjk.com/blog/2012/...
I doubt this has ever been posted. =)9 -
So, part of my job is working with SQL. Not my favorite technology to work with. But the tables have mostly non-descript fields, multiple schemas in the same table, and encoded relationships spanning multiple tables. Yes, the database from hell! On top of that, there is very little documentation on this mess. -- And my boss wants me to write queries against a combination of these tables to make sure the program is working. RIGHT...3
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Friend asked if I have ever built authentication using PHP and SQL...
Feel like sending links for them to research how instead of having me build it for them.
Teach a man to fish...?7 -
When you switch back to Javascript after a while of using SQL and dont see the error in this line..
Thanks for syntax highlighting that, firefox! I spent almost 10mins checking the parentheses and trying different combos...1 -
Inspired by this post
https://devrant.com/rants/2217978/...
I challenged myself to use SQL to get the prime numbers under 100,0008 -
Today in a meeting, a non-dev analyst who frequently uses SQL mentioned in passing that he uses Excel as a text editor for his SQL code. I don't know what he said after that because I wasn't able to get past the fact that Excel is his go to text editor.6
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I hate SQL Server so much, don't matter how Microsoft say they improve themselves at SQL Server.
There's a lot of fucking bloat, messes your system and your services, adds tons of crap in your system registry, while more advanced SQL engines such MariaDB/PostgreSQL are more contained, and its very small.
Why SQL Server has to mess with Windows' ACL and his own privilege systems?.
Uninstall it and a lot of components remain hidden and tons of registry entries, not even TotalUninstaller or CCleaner can help.
I hate it since my technical high school and my goddamn college is forcing us to use SQL Sever for EVERYTHING, instead of good alternatives, messed my computer entirely requiring to format.
I try always to convince my freelance clients to use open-source alternatives, and say how SQL Server is so crap, (i had variant degrees of success).14 -
Using Oracle 10g for our distributed databases practical lab session, and typed many SQL queries in one sheet.
Suddenly this guy came and told shortcut 'ctrl + r' to quickly run selected query.
And the page fucking reloaded and boom, all queries were gone! His evil laugh was more disturbing. 😡😡
Fuck him.3 -
SQL Rule 1. Always assume there are external processes that might affect your data. (for instance, triggers).
SQL Rule 2. In Denormalised data, never execute logic on dependant table values, always copy from the parent.
SQL Rule 3. When Denormalised data schemas are created the DBA knows what they are doing.
SQL Rule 3.1. If DBA knows what they is doing then according to Rule 1 there is no problem with adding in some triggers to maintain data clones as they are created.
SQL Rule 4. If you don't like or agree with triggers, deal with it. They are a first class tool in a first class RDBMS. In a multi-app or service environment there may be many other external processes massaging your data
SQL Rule 5. If all previous rules are not broken and the system has been running efficiently for many years DO NOT complain that there are triggers in the database that are doing and have been doing the same process that you just butchered (by violating Rule 1 and 2) in your makeshift "hello world, look what I can do from my phone" angular BS when the rest of the users are still relying on the existing runtime app.
SQL Rule 6. If you turn my triggers off, you sure as hell better turn them back on!1 -
FUCK YOU MS SQL!
DO YOU REALLY THINK THAT MAKING ME WRITE 60 FUCKING COLUMN NAMES BY HAND WILL STOP ME FROM COPYING AN ID?
Yeah it actually will but fuck you. I want to merge data and you make this work a pain in the ass.
Bunch of cunts.9 -
1. Plans to reactor some code
2. Formats SQL nicely
3. Entire software stops working
4. After almost an hour finds string.replace() called on the SQL query matching exactly one space
5. (┛◉Д◉)┛彡┻━┻2 -
Today in development: discovered that it's possible via combination of keys to rename a database in SQL Server Management Studio without as much as a dialog box to confirm.
Shout out to the 2000ish users in production that discovered this delightful nugget of info with me.
Lessons learned:
A) Don't trust Microsoft to create software that makes you confirm potentially catastrophic actions
B) Make sure your user hasn't been granted ALTER DATABASE permissions without your knowledge before you start using it.1 -
You know that you're working too long with SQL Server when you enter your password somewhere and press F5
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An example of today's generation:
My little cousin 22 years old wants to get into BI Dev. I tell him to read a certain book. The book has practice examples and various things that are hands on.
What does he do?
He READS the book and is like, "ask me any question and I know the answer". So I'm like, "fine, what's the structure of a basic SQL statement?", after some hard thought he's like, "SELECT * FROM?" I'm like, "ok.....how would you filter that?" and he's like, "you got me man........no clue".
What didn't he do?
Practice.
I mean.........come on.3 -
Me (out loud in a meeting): "we currently have a SQL Express license, but the traffic with the additional servers is causing crashes when the cache fills up. We need to upgrade to the standard version.”
Follow up email from mngr planning to retire in 6 months currently making roughly 3x my salary: "See if we can get a proposal to purchase better Sequel software and install."
Me:
(-_-;) ... ಠ︵ಠ ...
┻┻︵ヽ(`Д´)ノ︵┻┻1 -
I knew I had found the right group of friends when one of them suggested we try SQL Injection on the instant messaging feature of the bowling alley console.
Unrelated, do people not think, "hmm, that seems like an unnecessary feature?"2 -
In our databases lesson, we are going to use Microsoft SQL Server throughout the year.
This shit's setup fails at random, doesn't even start (empty error box??????) on some machines, and when it, uh, works, kinda, it's a convoluted mess.
Help.9 -
I feel ridiculous. While learning SQL databases I ran a query that was supposed to fill up the database with test data for me to play with. The actual result?
8 GB and 330,000+ rows.
Keep in mind this database is on a remote server, so trying to delete it times out after thirty minutes. I’m submitting a ticket right now.6 -
Wondering why your form isn't submitting any data to the db.
Spending half an hour checking all POST-Variables and functions in your script multiple times to see if they give the correct values (they do).
Finally realizing you wrote 'INSERT INRO' in your SQL statement.
Questioning your intelligence for the rest of the day.6 -
My boss's SQL schema has no foreign keys and he said he left them out intentionally because they should be handled in the application layer and they're a large performance impact.
This is a fresh greenfield project and he's already pre-optimizing for problems we don't have yet, on things that may or not be bottlenecks using ideas (e.g. foreign keys have huge performance costs on mariadb/auora) with no hard data or facts to back them up.
Let's start a new project with some technical debt!2 -
I have quite a few of these so I'm doing a series.
(2 of 3) Flexi Lexi
A backend developer was tired of building data for the templates. So he created a macro/filter for our in house template lexer. This filter allowed the web designers (didn't really call them frond end devs yet back then) could just at an SQL statement in the templates.
The macro had no safe argument parsing and the designers knew basic SQL but did not know about SQL Injection and used string concatination to insert all kinds of user and request data in the queries.
Two months after this novel feature was introduced we had SQL injections all over the place when some piece of input was missing but worse the whole product was riddled with SQLi vulnerabilities.2 -
I'm getting really good at SQL, last year it appeared me to be very difficult but finally, it's easier than I thought4
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Conversations with SQL Server:
Me: TRUNCATE TABLE users;
SQLServer: Okie dokie, Command(s) completed successfully
Me: WTF SQL, u didn't even ask for confirmation
SQLServer: Well, you did type 'TRUNCATE' then 'TABLE' then 'users' didn't you. I mean how much confirmation do you need you prick.2 -
The day after I delivered a secure programming course to our junior devs.
Junior dev: I can't figure out what's happening when I generate this sql.
Me: what do you mean generating ... It should be a prepared statement..
Junior dev: no I'm just generating the strings from the form
Me: ... Let's try this again.... -
I thought SQL was supposed to be very easy? I'd like to jump off a balcony right now because of it ...
I don't know if I'm just dumb or if my sources for learning are bad or idk
maybe I'm just tired and dislike SQL2 -
During a design meeting, our boss tells me that Vertx's MySQL drivers don't have prepared statements, and that in the past, he's used a library or his own functions to do all the escaping.
"Are you kidding me? Are you insane?"
I insisted that surely he must be wrong; that no one would release a database library without built in support for query arguments. Escaping things by hand is just asinine and a security risk. You should always use the tools in the database drivers, as new security vulnerabilities in SQL drivers can be found and fixed so long as you keep your dependencies up to date.
He told me escaping wasn't as tricky as I made it out to be, that there were some good libraries for it, and insisted Vertx didn't have any built in support for "prepared statements." He also tried to tell us that prepared statements had performance issues.
He searched specifically for "prepared statements" and I was like, "You know they don't have to be called that. They have different names in different frameworks."
Sure enough, a short search and we discovered a function in the Vertx base database classes to allow SQL queries with parameters. -
This may be the best Stack Overflow comment I have seen when learning SQL.
How old is Frank? I don't know (null).
How old is Shirley? I don't know (null).
Are Frank and Shirley the same age?
Correct answer should be "I don't know" (null), not "no", as Frank and Shirley mightbe the same age, we simply don't know1 -
Made a SQL query wich perfectly worked. Than added one collumn to be selected and everything is shit.
And the worst is I still don't know why! Ò_Ó2 -
Any good resources for sql?
Im getting heavy into databases. Im a noob but i need to reach top level quickly.
Im gonna buy 1 oelr 2 books. Im leaning towards oreillys “learning sql“.
Any suggestions?11 -
Running SQL Activity Monitor to find inefficient queries. According to legecy team this is how they think they should query SQL 2014 for a customer.10
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I'm interviewing with the data architect in two weeks' time, a self-proclaimed ninja. The chap has done PL/SQL development on SQL Server 2008 according to his LinkedIn profile. Yeah, okaaay...5
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Ok so I was fetching some JSON data from a SQL database server and loading it on the front-end. Every single data is being loaded onto the table except for a single data column, which is empty.
Hmmm... So I go and check my code... everything looks fine.
Then I console.log the JSON (using .stringify() of course), all the values from the table are present in the printed out JSON.
Ok, now I am really pissed.
Long story short...
I had misplaced a single 'i' in the SQL statement, I had included the 'í' (the i-acute) character instead. And since I was using an alias in the query statement, no error was shown.4 -
Please, please for the sake of your born/unborn child, check whether the names of the entity attributes are not valid sql keywords.4
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Creates PHP scripts for development SQL server, pushes to production to find out the schemas are different. *face palm*1
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Ok now I'm gonna tell you about my "Databases 2" exam. This is gonna be long.
I'd like to know if DB designers actually have this workflow. I'm gonna "challenge" the reader, but I'm not playing smartass. The mistakes I point out here are MY mistakes.
So, in my uni there's this course, "Databases 2" ("Databases 1" is relational algebra and theoretical stuff), which consist in one exercise: design a SQL database.
We get the description of a system. Almost a two pages pdf. Of course it could be anything. Here I'm going to pretend the project is a YouTube clone (it's one of the practice exercises).
We start designing a ER diagram that describes the system. It must be fucking accurate: e.g. if we describe a "view" as a relationship between the entities User and Video, it MUST have at least another attribute, e.g. the datetime, even if the description doesn't say it. The official reason?
"The ER relationship describes a set of couples. You can not have two elements equal, thus if you don't put any attribute, it means that any user could watch a video only once. So you must put at least something else."
Do you get my point? In this phase we're not even talking about a "database", this is an analysis phase.
Then we describe the type dictionary. So far so good, we just have to specify the type of any attribute.
And now... Constraints.
Oh my god the constraints. We have to describe every fucking constraint of our system. In FIRST ORDER LOGIC. Every entity is a set, and Entity(e) means that an element e belongs to the set Entity. "A user must leave a feedback after he saw a video" becomes like
For all u,v,dv,df,f ( User(u) and Video(v) and View(u, v, dv) and feedback(u, v, f) ) ---> dv < df
provided that dv and df are the datetimes of the view and the feedback creation (it is clear in the exercise, here seems kinda cryptic)
Of course only some of the constraints are explicitly described. This one, for example, was not in the text. If you fail to mention any "hidden" constraint, you lose a lot of points. Same thing if you not describe it correctly.
Now it's time for use cases.
You start with the usual stickman diagram. So far so good.
Then you have to describe their main functions.
In first order logic. Yes.
So, if you got the point, you may think that the following is correct to get "the average amount of feedback values on a single video" (1 to 5, like the old YT).
(let's say that feedback is a relationship with attribute between User and Video
getAv(Video v): int
Let be F = { va | feedback(v, u, va) } for any User u
Let av = (sum forall f in F) / | F |
return av
But nope, there's an error here. Can you spot it (I didn't)?
F is a set. Sets do not have duplicates! So, the F set will lose some feedback values! I can not define that as a simple set!
It has to be a set of couples, like (v, u), where v is the value and u the user; this way we can have duplicate feedback values in our set.
This concludes the analysis phase. Now, the design.
Well we just refactor everything we have done until now. Is-a relations become relationships, many-to-many relationships get an "association entity" between them, nothing new.
We write down on paper every SQL statement to build any table, entity or not. We write down every possible primary key or foreign key. The constraint that are not natively satisfied by SQL and/or foreign keys become triggers, and so on.
This exam is considered the true nightmare at our department. I just love it.
Now my question is, do actually DB designers follow this workflow? Or is this just a bloody hard training in Pai Mei style?6 -
I'm doing databases in school now, but I couldn't wait to make one/learn basic SQL, so I made a database of the devices on the home network!
Shown here is the DB and an SQL query that was basically corrected by the program ;-;7 -
Whole class: makes an sql database using phpmyadmin. Simple, easy, meets the requirements
Me: fuck it. Use python with pyqt5. And Microsoft sql server Spend unnecessary hours on making repetitive functions, cause my stupid ass can't figure out how to pass more than one parameters in class methods.
All in all, it looks good. I feel like I did something, learnt something new. Took on a challenge. Its a wierdly good feeling, somewhat rewarding.5 -
Holly shit, they will never understand....
If you come to dev, minding his buissness, writing some code, beeing focused, with headphones on, etc. You absolutely destroy his cache of things in mind, you stay next to him gazing at his screen and throwing away madly words that you need some data extracted from database NOW and you will stay standing next to him gazing when he quickly types few lines of ultra-wide screen of SQL querry with all the fucking joins and shit you wanted with exac aliases you understand and makes one typo but query executes and spits out some data. He didn't notice that something is wrong with it becouse he didn't memorize database's data, and he sends it to you.
Now you are coming back to him pissed and in general fighting mood becouse he did one fucking typo when you was actively pressurizing him to make fucking query faster while you absolutely destroyed his flow of work (in meaning he now needs to dive back into code, figure out why he was editing given file and what was idea for further structure)
Now you are standing again next to him and absolutely pissing him off that he fucked up and made one fucking typpo that unfortnately database didn't say "nope" but it instead spit out wrong data.
If you can relate to "you" stated above, sincerly fuck you.
If you can relate to "he" stated above, I feel ya man, its fucking annoying, isn't it?2 -
Welp, this made my night and sorta ruined my night at the same time.
He decided to work on a new gaming community but has limited programming knowledge, but has enough to patch and repair minor issues. He's waiting for an old friend of his to come back to start helping him again, so this leads to me. He needed a custom backend made for his server, which required pulling data from an SQL/API and syncing with the server, and he was falling behind pace and asked for my help. He's a good friend that I've known for a while, and I knew it wouldn't take to long to create this, so I decided to help him. Which lead to an interesting find, and sorta made my night.
It wasn't really difficult, got it done within an hour, took some time to test and fix any bugs with his SQL database. But this is where it get's interesting, at least for me. He had roughly a few hundred people that did beta testing of the server, anyways, once the new backend was hooked in and working, I realized that the other developer he works with had created a 'custom' script to make sure there are no leaks of the database. Well, that 'custom' script actually begins wiping rows/tables (Depends on the sub-table, some get wiped row by row, some just get completely dropped), I just couldn't comprehend what had happened, as rows/tables just slowly started disappearing. It took me a while of checking, before checking his SQL query logs (At least the custom script did that properly and logged every query), to realize it just basically wiped the database.
Welp, after that, it began to restrict the API I was using, and due to this it identified the server as foreign access (Since it wasn't using the same key as his plugin, even though I had an API key created just so it could only access ranks and such, to prevent abuse) and begin responding not with denied, but with a lovely "Fuck you hacker!" This really made my night, I don't know why, but I was genuinely laughing pretty hard at this response.
God, I love his developer. Luckily, I had created a backup earlier, so I patched it and just worked around the plugin/API to get it working. (Hopefully, it's not a clusterfuck to read, writing this at 2 am with less than an hour of sleep, bedtime! Goodnight everyone.)7 -
I had once an sql error that took me two days to resolve it.
The error message was a syntax error but I was using an ORM to write my queries (doctrine with php) .I didn't have too much to debug as the code was pretty simple and clear so I got to the point that I convinced myself that this a bug and I'm gonna try to mess around it to avoid it.
Second day late night, something popped up in my mind '' hey what about those reserved words? Could it be the reason? '' aaaaand BINGO the key '' option '' is a fucking reserved word for mysql.
Tip : always check that list before writing your data models (specially if you're a noob like me)1 -
A one of my co-workers today said he once witnessed a 20,000 line SQL query. Is that even a thing? What does it do?9
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I never knew that I was a good mentor at SQL , specially at PL/SQL.
I gave a task to a new member of my team, to fill 5 tables with data from other 15 tables.
I informed him well about data table info and structure. He spended about 3 days to create 25 different queries in order to fill 5 tables.
After I saw the 25 queries, I told him, that he could do it with 1 main query and 5 insert statements.
So I spended 1 hour of training, in order to build,run and explain how to create the best sql statements for this task.
(First 5 minutes)
It was looking so simple at the beginning from starting with 1 simple join, after some steps he lost my actions.
(Rest 55 minutes)
I was explained the sql statements I 've created and how Oracle works.
Now , every time he meets me, he feels so thankful for learning him all those Oracle sql tips in 1 hour.
Now he is working only with big data and he loves the sql.1 -
INSERT INTO not_rants ("
Today I took the time to learn the basic SQL(ite) and just finished learning in depth about the art of querying.
I just had to do this, because I am very unsatisfied with the way we learned it in school. Almost literally only translating the words CREATE, TABLE, SELECT, FROM, WHERE, UPDATE, DELETE in MySQL.
Funny, irrelevant fact: Before I could download the meme below I encountered this beauty of an errorlog:
Value of '∞' is not valid for 'emSize'. 'emSize' should be greater than 0 and less than or equal to System.Single.MaxValue.
Parameter name: emSize
https://cdn.meme.am/cache/...
");1 -
Starting out as a developer: I don't know why people are so stingy about tags on Stack overflow
Now: This guy tagged this question with SQL Server but is asking about Postgres I don't know how to help this guy out3 -
I just dealt with a 3 nested "if" statements in SQL. There is no indentation so I am quite frustrated since each "if" spans up to 2-30 lines.
I now understand why Python white space is significant3 -
Does anyone else find it super-confusing how Microsoft refers to SQL Server versions by both product year and version number?
For instance, we primarily use SQL Server 2012, 2014, and 2017, which are versions 11, 12, and 14 respectively.
The slight mismatch between the product year and the version number creates a lot of ambiguity. If someone refers to SQL Server "14," we always have to double-check: do you mean 14 as in version 14 as in 2017, or 14 as in 2014 as in version 12? Does SQL Server "12" mean 12 as in version 12 as in 2014, or 12 as in 2012 as in version 11? It's ridiculous!3 -
Most of the companies visiting my campus for placements are hiring people with high CGPA and less knowledge and leaving (not even allowing for taking tests) the ones with good technical knowledge with less CGPA 🙁. So I hacked the placement portal developed by a PLACED, HIGH CGPA Candidate using SQL Injection and got access to all the student accounts 😄2
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Company A: Oh yes we work with this huge tech company all the time and our APIs are just amazingly well made! DONT WORRY!
Company B: Yeah we've worked together once or twice and nothing seemed to go wrong the last time. DONT WORRY!
Reality: 11 API warnings, no data transfer and a SQL error meaning nothing I've been working on actually worked. #Rantover2 -
Looks like copying large file e.g. 1GB from Remote Desktop Connection will also affect SQL Server performance and somehow slowing down the SQL transaction 100000x times
What a new thing to experience😆5 -
Yesterday, microsoft showed me once again, what it means to "obey".
I tried to install Microsoft SQL Server 2012 on a virtual machine with OS Windows7.
The installation-center asked me to choose an installation-folder for SQL-Server.
No matter what, for any folder i had chosen for the installation, the setup replied with the errormessage "The installation-folder is invalid"
So i considered asking our platform-services team, whether they gave me administrative rights for the vm.
They did. I had full access to the components of my vm.
After a few days i finally recognized, that i had picked a wrong iso for the installation of sql server.
Instead of sql server 2012 + Service Pack 3, i picked sql server 2012 ServicePack 3.
So after all, Microsoft tried to tell me by showing the message "The installation-folder is invalid", that the setup weren't able to find an installation of Microsoft SQL Server 2012.
God damned!!1!3 -
Who has replaced a dot with a semicolon while composing a SQL query in php? Me. 😤😤😤😤😤
Two hours spent in fixing everything and a sleepless night.8 -
Progress.
It isn't much, but the MVC application now reads data from the Linux LAMP server and prints the SQL data back to the client. Biggest hurdle was the fact that my Linux host blew up three times over the week, but hey, how else are you going to learn Linux servers?
Moving into spring framework self-education in July. Hopefully it's a little less painful than Apache Tomcat. -
dude 1: Why is the sql sentence so slow? How can I improve it?
dude 2: buy more ram memory to database server2 -
Following on from my previous SQL script to find prime numbers
https://devrant.com/rants/2218452/...
I wondered whether there was a way to improve it by only checking for prime factors. It feels really dirty to use a WHILE loop in SQL, but I couldn't think of another way to incrementally use the already found prime numbers when checking for prime factors.
It's fast though, 2 mins 15 seconds for primes under 1,000,000 - previous query took over an hour and a half.5 -
Any advice on some good SQL book or resources?
I need to start learning DB designing and theory.
I know jackshit apart from the basic commands.4 -
Couple of SQL databases walked into a "noSQL" bar.
But after some time they walk out...
As they couldn't find a Table... :) -
We have so much pl/sql at our company and it really sucks because the "young" generation of devs must convince the pl/sql guys to switch to some more powerful and newer languages like java.
But not everyone wants to use the new stuff or learn anything new. I mean there are some programmers who really appreciate that there is new stuff. They have no problem learning from the younger generation. But some of them just resist any change in that direction, and thats the much higher amount of devs.
Does anyone of you have such experience? What can i do against that?
Is that some kind of "i am too old for this"-trip?13 -
I've been assigned lots of database work the last couple of weeks. Managing old databases are what make or break people surely.
The customers have this proprietary mess of a Visual FoxPro database manager.
I spent the entire day navigating what I should and shouldn't export for them (as they're fortunately trying to rid themselves of the service)
When I was supposed to do the export, the proprietary hardware only allowed exports of 25 rows at a time with the free version this big company is using... I ehr... I just regret not converting it into SQL to begin with.2 -
Today, I had a small, but funny conversation with a person I knew from my education (application developing).
He suddenly asked, how to prevent using HTML-Tags in PHP.
So I send ihm following line:
$string = str_replace(array("<", ">"), array("<", ">"), $string);
Shortly after the line, he asked, how to add this into his query, which looks like:
$query = "INSERT INTO comments (name, email, quote, hinzugefuegt, ip_adress) VALUES ('" . $_POST['vName'] . "', '" . $_POST['eMail'] . "', '" . $_POST['q17'] . "', NOW(), '" . $_SERVER['REMOTE_ADDR'] . "')";
Now I thought: "Well, he don't even secure his variables", and I posted a Pastebin, which only "fixes" his issue with replacing the HTML-Tags, but still allows SQL injection.
https://pastebin.com/kfXGje4h
Maybe I'm a bad person, but he doesn't deserve it otherwise, because when I was still in education with him, I told him, he should learn to use prepared statements.3 -
Well well well.
Story time.
Since we are working from home for the past 4 months, I finally decided to install a Microsoft SQL server on my home server. (Mostly was using Azure)
My server is running Windows Server 2012 R2.
Tried installing SQL 2019 : fail, 2016 : Fail, 2012 : Fail. Some obscure message about some DLLs not being at right version. (And a warning that it is no recommended to install SQL server on domain controller, but I know, it is my home setup, not roduction)
“Ok fine, I’ll install it on my PC instead”. Windows 10 PC. NOPE. “Cannot install on a compressed drive”. Welp, wtf ? (Of course you cannot select destination install folder, I could’ve put it on another drive).
So here I am. Working 100% on Windows, installed Ubuntu server 20 LTS in Hyper-V, Installed Microsoft SQL server on it (BTW, install is very easy compared to windows). And that shit is working. And new “Terminal” app does support SSH out of box, no need to add Putty !
So as a Windows user, I needed Linux to make Microsoft SQL techno work.
Nothing will ever surprise me anymore. (BTW it’s fucking fast. I like SQL server on Linux)2 -
Today salesmen gave me some recommendations about my "so hardly optimized" SQL queries..suggestin me to change em.. I said okay, let's execute these.. 10 hours later, their computers sql workbenches finally displayed the fucking first one.
Result: 0 row... 🤐2 -
Part of my job requires me to use SQL in SQL Server and databases and Python and utilising Javascript APIs - so I was thrown in at the deep end. But my fiancé is also an amazing help as a software engineer he helps to spot my errors and encourages me to take on new challenges.
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I've alway pronounced it sequel but everyone I know swears it's SQL, so I say that now to fit in.
I feel like a spy, lying to my closest friends everyday...2 -
Today is SQL day.
Been some time since I had to go here, the queries are flooding back to my mind like water over a dam wall. How the heck I remembered these is what I pondered.
Oh well, back to SQL (at a client - yay).
Now you SQL me, now you don't. -
1 problem down, 3 more show up.
I love SQL.
In other news, client won't send data to utilize, so I must fill in dummy data.
How's your day? -
Any code should be simple and easy to read / understand.
I just reworked an old stored SQL proc.
Went from 102 lines to ... 10.
More I code, more I realize that maintainability, readability, comments and unit tests are more important than actual code. (And performances ofc. But if 1 line code does it in 1 second and 500 lines code in 0.2 seconds, I’ll take one line solution every time)5 -
My Technical lead always asks one question to new interviewing candidates. "Write a SQL query to find the second highest salary from employee salary table". It's the same question which he faced in one interview and he didn't have answered it.
Sorry for my bad English..3 -
Not much of a SQL Dev, still an apprentice and had a basic run throughs. Client needed a migration script to run, which I was assigned. Took me a good 6/7 days to make, transfer over a secure (and VERY slow) network took 2 hours. Infrastructure 3rd party took 2 days to clear and run. After all that process. I then realise, I left the fucking rollback in1
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Can't create a new SQL database on Azure on on one subscription as every region is unavailable. Everything works on my other subscription.
Fucking hell.1 -
Just saw this question on quora asking if saying ess-kew-ell is an indication that someone doesn't know SQL. I say SQL because there's no goddamn ee or kwell in there YOU'RE ADDING LETTERS THAT AREN'T THERE BUT SOMEHOW I'M THE MORON?!?!?!5
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When it comes to choosing a database, What is the best for a Java project?
1.SQL - MySQL
2.NoSQL- MongoDB11 -
Captains Log:
Day 2 of trying to get SQL database to work with JDBC application.
I've built a try/catch method and it throws up the message that IntelliJ can't find the JDBC driver.
More research to be done. My first officer duck buddy has no input for me.
It's going to be a long day.17 -
When your about to start development on some tickets you've been wanting to finish, and then MS SQL management studio poops out and you have to spend the entire day re-installing/fixing your SQL DB's... Oh and now behind schedule1
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Got my “Certificate” for SQL. What do you think? I have a few other just not sure if this means jack squat despite it being a free “certification”.9
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Can any sql guru take a look at this problem?
I try to select number array from a JSON object, but have no idea how to do it.
https://stackoverflow.com/questions...5 -
SQL collation conflicts are the worst thing that has ever been made possible in humanity... it's 1000 times worse than problems with time zones, change my mind.
Fuck off whoever decided to make hundreds of different versions of the same languages.1 -
That feeling when you debug the Users table in sql, which has a Password field encrypted with hash, but most of the demo users use the same Adminadmin password, so you recognize the other users password because you rembered the hash1
-
I once saw a DBA using two for loops in PL/SQL to join two tables. I wonder if he knew about the "alternative" way to do that...2
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I use mySQL workbench on a daily basis, but I've been having issues with the dark GTK theme not working well with Linux. Should I do a workaround to get workbench to use a light GTK theme, learn to use SQL from the CLI, or go with a third option?16
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SQL Server Management Studio: I noticed you forcefully closed the application. Do you want to recover the queries you were working on before you closed?
Me: No
SSMS: Well here you go anyway
Me: *spends 5 minutes recovering and closing files*2 -
Life of an Oracle Developer ... Day {I've lost bloody count now}
Task: Optimise a 236 line cursor consisting of 7 SQL SELECTS and unions, 39 joins and nested sub queries galore.
"YAYYY" said no one ever ...3 -
I've always found it funny when sql errors "at or near" a character. I don't know enough about sql to understand why it does that (although I'm sure there a reason!)....but it just sounds like it's not trying hard enough 😂
Maybe someone smarter can explain?1 -
i am not a SQL expert, but i can do what i need to do in order to be considered a full stack dev
the syntax i have to learn was deprecated before i was even born -
Knowing SQL does not mean knowing all the existing technologies that uses SQL, motherfucker! Stop bragging around that you know Postgres, SQL Server, Oracle and shit.
IT is full of shit talkers and ego, NNNNNNNNNGGGGGGGGGGHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH10 -
Is there ever any reason for SINGLE Hibernate SQL query/template to join like 10 different tables, do math, and come out to like 30 lines?
This is not a stored procedure, it's a single SELECT2 -
How long do you guys tend to keep SQL migration scripts around?
Obviously they don't use up much disk space, but they do start to create clutter in a project4 -
Learnt a lesson today:
Never try out new hotkeys in a SQL query editor window.
Or if you do, at least make sure it's not connected to anything important :)
I was trying out new hotkeys and accidentally executed a SQL deploy script to rename something in multiple stored procedures in a large system.
Thankfully - so I saw after my heart stopped - it was only our QA db so not too bad, just a couple of devs set back.
Who woulda thought ctrl-l would execute :O -
A SQL statement goes to a restaurant ... there he sees 2 TABLES and asks " can i JOIN u two guys ? " :P
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First exam this year, about database optimisation. I have been there just a week and I really enjoy this school
BUT. THIS. CAN'T. BE. TOLERATED.
I wouldn't wish my worst enemy to write SQL on paper goddamnit!!!!
(Yeah I didn't have any other pen that this red one, at least it was erasable)7 -
Should I learn a database language before backend, or vice versa? I’m thinking that I learning Rails and some form of SQL.2
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Are sql joins a bad practice? :o
I recently did some work on a page for a site ive never worked on cause my boss told me to. So they recently added product detail video urls to a table that has a relationship to the products table. The existing code was querying for the products on that said page and then during the loop that was outputting the products ,there was another query for getting the url for the current iteration/product. Told my coworker that this imo was pretty inefficient way to do it and switched it to a join and did 1 query then output that but his words were "The way it is now maybe ineffecient in your opinion but it works. Also combining inner joins with left or right is not a good practice. If the data is changed upstream the entire query would need to be redone to accommodate the change". Mind you that they query views a lot which are all made from queries that use joins and I'm also pretty sure these views were written by someone who used to be here because these guys are not good at sql or at least that's what there queries show. I'm at the point now where I'm realizing that my boss and this other guy don't give a fuck about efficiency or doing things the right way they just want it "to work". So this coworker changed my query back to the way it was because he said it broke the shopping cart even though that was already broken when I started... What is life? Maybe I'm the stupid one?7 -
I've been given a huge stack of paper, some users stories and loose specs. Was tasked with engineering the specific requirements, then the models and finally the database. Then I need to build an API on top of that.
Stuff I'll use is Go and Postgresql. Small issue is, I've never done DBs, so I've no idea what to do or where to start.
Does anyone have any resources to help kick-start myself in this field? I've been reading on SQL, but that doesn't really tell me anything about data structures and how to transform those user stories into product requirements.6 -
Gosh!! Do not want to look at my shitty face in the mirror when i get to know that there is a DESC syntax in SQL for sorting data automatically even after i manually finished sorting them in Php.. #Fuckmylife #newbie5
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copying field data from one table to another,
wondering why the execution takes so long,
since your copying only data from three rows,
realising you forgot the WHERE clause in the SQL while working on a live database and overwriting all data with the last statement 😨6 -
I've solved hard problems before, and used languages other than Java, but for some reason I don't know how to start using SQL. I couldn't find a SQL IDE. Any suggestions on how to start working with SQL on a Linux computer?6
-
So a SQL server walks into a bar to grab a drink. He gets his drink and spots a table with two people sitting down with a spare chair. So he walks up to them and says "Hey, can I JOIN you two?"1
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Been ripping the hairs from my skull the entire week trying design some new databases and some SQL to pull the correct data from them.
Litterally 5 minutes before i log out for the weekend I run my test cases and everything works! Amazing start on the weekend :D3 -
https://prodajatest.byethost7.com/
My first public website... Please don't say how it is bad because I know believe me :) There is probably XSS and SQL innection attacks so feel free to play with it. Also it is on serbian but you will figure your way in and out (if you even open the website)6 -
Why it is such a pain to scan nullable types on Golang database.sql
Now I have to chose between:
1- Using temporaty variable to hold the nullable value just to soon after check and set the zero value if it is null
2- Adding coalesce to my sql query for the zero values.
Did I mention that there are around 20 collumns that are nullable...1 -
Silly question, but why is it that in this age of 64-bit computing and gigabytes of RAM applications still have trouble with text files/SQL dumps over 1MB in size? Surely for something so simple it should be able to store it all in memory without any issues, no?9
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It’s 14:30 and I’ve only just opened SQL Management Studio and Visual Studio after being at work since 9am. Sometimes I hate being a team manager... so much shit shovelling and not enough fun work1
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We had a test in class where one of the questions was "What is SQL injection?" and I wrote what it was and even gave a bang on simple example where I showed how you could end up with a truncate statement on your customer db. The last part of it was:
"This will be the SQL that gets executed:
INSERT INTO Customers (Name) VALUES (' ';TRUNCATE Customers;--);
When I got it back after we had a session of "grade each others work" I got the comment: "What makes this an attack against a database?"
I mean, I'm not sure what I could have written. That it truncates the database? And, correct me if I'm wrong, but if a user truncates your DB, is that not an attack? -
Hey all, can you guys recommend some great books on database theory and design. Something aimed towards intermediate towards advanced. It doesn't have to be sql, I just want to learn how to make a kick a#@ db.
Thanks!!!!!!!6 -
MFW I, a junior dev who just started have to explain what sql injection is to a senior IT person... It's not like I'm an expert in the field, but a little bit of expertise would be nice2
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Saw the following SQL in an SP at work:
Type_ID = CASE Product.Type_ID
WHEN 1 THEN 1
WHEN 2 THEN 1
WHEN 3 THEN 2
WHEN 4 THEN 3
END
Seems a little bit redundant to me :-)...1 -
Wow...a talented developer created a 3 via SQL execution plan. The query runs like crap but the execution plan art is pretty.
-
I thought Notepad++ was the one and only text editor for random small tasks..
I wanted to check a 280MB SQL file if it dumped a specific table.. the file never opened, and now npp is stuck in "Not responding" :)9 -
Spent 2 days optimizing SQL queries, and then I learned a valuable lesson.
If your database size is bigger than the RAM of the machine it’s running on, every query will take 5+ seconds ☹️4 -
"So... you know SQL? Great!! Here, I have this project for you to fix a few things."
"What is it?", you ask... SSIS packages and stuff!
Where do I start??!! -
Three hours of debugging the program.
I also wrote a thread in a forum to ask for help explaining all the test I made.
My database is working in Sql Management Studio but not in the code. It done well only using the trusted connection.
The issue? I was using the windows note (Win+v) to paste the connstring since the beginning and in the string there is a / instead of \ in the instance name. I'm writing here to not smash everything...1 -
Found an infinite loop in SQL. One proc called another and then that one called the other. Woooooo.....
-
I was scanning over a dreadful code base I had to work on and found SQL injection vulnerabilities. THE SITE WAS LAUNCHED IN 2017!!!! 😢2
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I recently heard someone pronounce SQL as "Sequel". Is that actually the correct pronunciation? Have I been saying it wrong all those years?9
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I basically hate anything that IDEs aren't smart to fix typos.
- JavaScript, but usually not TypeScript
- Python
- SQL, mostly.4 -
I wonder if I should add to my bachelor thesis' implementation report that I had trouble setting up my SQL init script and lost around a day because I made a typo in a table-name and therefore my foreign key kept fsiling for unknown reasons 😂1
-
Another guy and I are each making a CMS to see who can be done first and who's looks/acts the best. He's basically done and I still have a lot to do, but I've been looking over his code and, it. is. bad. The classes are badly made and named with all lowercase. And i found this thing, he has 10 other functions just like this one.
His: https://ide.explosivenight.us/works... (I made sure sql injection isn't possible for normal users)
Mine: https://al1l.com/blog4 -
Was just fucking around with MyBB in order to figure out how it works on the control panel - whatever, right? Install a crap ton of plugins, and quite a lot of them wouldn't install due to an SQL statement being wrong. I check them, and either:
- the plugin ID is specified (it's auto-increment, it really shouldn't be specified at all)
- the database expected an integer and instead got a word
like for fucks sake, it's either 1 or 0 for being default, yet a lot of developers PUT YES OR NO?? HOW IS THAT EVEN REMOTELY AN INTEGER WHAT THE FUCK
So that was my past hour, running through plugin files, finding SQL statements and altering them. Safe to say that for what I got out of the plugins, it really wasn't worth it. -
How hard can it be to let sql just multiply some values and sum the results, right? As it turns out, damn hard!
I hear you thinking, surely you can just do select SUM(price*amount) AS total right? Nope! I mean, yes you can, but it fucks up. Oddly. It always ends up giving me wrong results. Always. Wtf sql? And it's not like I'm running a massive dataset or anything, it's like 100 records at most?28 -
My last rant with example of usefull PHP function in old inhouse CRM software was somewhat popular, so I decided to post more stuff. This time we look at the login function. Besides obvious problem of SQL injection (that i of course tested) we have two calls to the same 'poslednji_login()' method (translated to english - 'last login') that actually just returns current time, not the last login time... twice...6
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So I was stupid enough to make the same mistake for 5 times in a row within the same hour, simply the same sql query to get something from a table which doesn't exist because I didn't even run the migration.2
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[Equifax Recruiter] - Hi, we have an exciting opportunity for you here at Equifax! Innovative... blah blah... J2EE... blah blah... latest technologies... blah blah... greenfield... blah... CORBA... (ok, there wasn't any CORBA)
[Me] - Oh Equifax... how did you get my details?
[ER] - ... -
Today I got a change request that told me I needed to create a report showing orders broken down by their order types as percentages.
Now the order types part involve SQL queries that translate business rules into multiple table joins and it's quite nasty (200 + lines or so).
Naturally the change request doesn't mention any of these business rules and how to tell that orders are of a specific type... but alas!
It teaches me how to calculate a percentage :)
... like "10 / 100 * 100 = 10%"
I don't know whether to laugh or feel insulted.2 -
Inherited a legacy system from a previous "developer" who wrote code to sanitize input from sql injection in the front end and then called an web method called execSql which accepts am sql statement in a string value!
Obviously the app ran under admin privileges.2 -
So my school forces me to take a partner in my project. I build him skeletons, give him examples and wait to see what he'll do. He was supposed to do CRUD for text messages in SQL database. In the update and delete functions, he does this:
UPDATE Message SET (values) ...
WHERE username=@username
Yup ... -
I don't know... I'm very sceptic about JPA. I worked on a project using this technology and having much trouble and now I'm working on the second one, but sincerely I prefer the standard SQL approach. What do you think guys about this framework?1
-
WHY THE FUCK EVERY DAY YOU SEND A NOTE TO THE CLIENT TO TELL THEM A SQL SERVER JOB RAN.....!?!?!?!?!?!?
Seriously....no automatic messaging....FROM THE FUCKING IN BUILT SERVICE...the fuck is this manual life that people love to promote. -
I started a project to practice and familiarize myself with SQL more and Entity Framework Core and prove how much I’ve learned from reading this book.
It was originally gonna be small program with a small database but over the course of me designing the database I thought of more features I could add. It’s been awhile since I’ve had a project and it feels good to have one.
Right now I’m only messing with SQLite but since the position I want to apply for asks for SQL Server I want to mess with that eventually.5 -
Embedded database is so lack of choice. SQLite, might be best, if you want stability / ACIDity.
Again, SQL means normalize everything, if I've ever want to index it...
Then, ON DELETE CASCADE? TRIGGER? Also, MANY-to-MANY kills.6 -
TL;DR I am not sure how to store a whole bunch of images for my SMS bot
Hi Everybody. I'm doing a side project where I am setting up a SMS bot to send images to certain phone numbers weekly. I am using twilio for the SMS bot and I think it's going to be written in python. I want the program to pick a random image from storage and then send that one. However I am not sure what way to store the images (REST API, SQL DB, firebase, etc.) I have worked with REST APIs before but I have almost no experience with SQL databases and firebase. Has anyone done anything like this? Is there a better way I could be doing this? Please lmk if you guys would like anymore info. Thank you!5 -
Some of my previous rants mention a web application that I wrote for my then-employer. As it is still in use and I have the whole code, too, I figured to check on security a little with a friend. It's all fine, except for one page, were I was sloppy and didn't escape strings, thus allowing for SQL injection.
This is however only possible if already logged in, which has shown to be secure (and the tool is for employees only).
Nobody is ever going to find out, as the only one who knew what injection even is was me. I left 2 years ago. -
I wrote a whole article about it, and oh wow, it still exists. It was probably the first optimization I ever did in my life, and it was while I was learning SQL.
And writing an edu-tainment article aimed at total laymen as well as beginners was also fun.
http://swczdev.blogspot.com/2010/...
Sadly, czech language only. But... the english autotranslation actually looks readable:
https://translate.google.com/transl...
Long story short, though: 4 or 5-table join going from 7 seconds before optimization, to 0.08 seconds after optimization. Both were written by me, the optimized one was written without any reading on how to optimize SQL, based purely on me actually stopping to think about how I can reduce the DB load based on the little that I knew about how SQL servers work.
Optimization made it about 99,9999422% more efficient, based on my improvised efficiency metric of how many rows the query retrieves and produces versus how many are thrown away on the end due to the WHERE part of the query.
And that was also the day when my question of "what is there even to optimize in SQL?) was answered... by myself.3 -
I was writing a db on sql and I accidentally fucked up the key column.(as you can see in the pic) No, I didnt used AUTO_INCREMENT.
Is there a wei to make this right, other than doing it one by one?3 -
SQL is amazing.
I'll toss out some bassakwards query and the optimizer will make sense of it and suddenly I'm searching a amazonillian records in no time.
Then rando one day (today) I fire up what I think is really not the most wonky query I've ever written and ... "Well shit this is surprisingly slow."
So then I go full n00b and add some fields to the query that I know would limit the number of possible records to way low thinking that might help and ... nope no faster...
Guess it's time to bust open some books about SQL....4 -
F-word with three consecutive U-letters! SQL Management Studio just crashed, just when I had finished a nice script, that I hadn't of course saved yet. I must say SQL Management Studio hardly ever crashes, can't even remember the last time that happened before this. Wonder if it has anything to do with the plugin SQL Complete that I installed just recently? SQL Complete also has the annoying habit of displaying a popup every time SQL Management Studio is started, with a delay just long enough so you have already got started with something when you're interrupted by that popup. No, I'm not going to upgrade a piece of software that behaves maliciously!15
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When you open an access db in visual studio so you can do sql querys with out the annoying access interface and then i realize visual studio uses the same interface as access except its worse *-*3
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- C# call to SQL Server takes forever.
- Running the same sql in SSMS is nearly instant.
Please SQL Server God, grant me strength to understand your ways.3 -
I absolutely hate it when people pronounce MySQL as MySequel but I have no problems with people pronouncing SQL server as Sequel Server. It's a weird world.1
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> me: trying to explain to a dev from one of our customers why should they worry about sql injection in their application -which by the way is public- since they always concatenate params (even giving concrete examples in their app on how could I gain acces to their database with just a couple of queries)
> me: (thinking) Did I change my bed with a time machine by accident and got myself into the past?
Do these things happen often to you? (U_U||)1 -
bcp in SQL Server can't export column headers. WTF?! Spent hours trying to find a solution that doesn't involve me typing all 250 columns.
Still haven't...2 -
I’ve always wrote my own class to sql methods, but I used the Table Adapter in C# and I don’t think I will go back.2
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Why is the syntax of SQL INSERT so completely different to the syntax of UPDATE?
...proceeds to rewrite multiple 60 column inserts into updates...2 -
I am in need of a good web host for my personal website... the one I use now is free and therefore sucks. I can't even get external access to the MySQL database and their SQL client sucks.9
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I really love how quick it is to get data from SQL with Djangos ORM. But heaven forbid I want to do a WHERE EXISTS clause. Comparing against two tables should not be that hard....1
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I've never had any use for Pythons tuple unpacking until today when building objects from SQL selects. I always thought it was kind of a lame feature, now I think it's awesome.
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Colleague: I can't restore this backup file!
Me: What version of SQL Server are to restoring to?
C: 2016
M: Should be fine. How did you get the version?
C: * opens SQL Server Management Studio, clicks Help > About *1 -
Sigh, what is it with these cowboy SQL Devs? Why the fuck is this a pattern for anything?
New contract, new idiots, sigh.
EDIT: Had to change picture because Prod is different to Dev (but no dev has been done since release....smh)4 -
You know what's more fun than debugging a SQL stored prodecure?
Debugging a SP which CATCHes all errors and instead returns an error code. Because exceptions are scary... -
Is there anyone here who is expert in Microsoft Sql server. Am getting error while connecting to local database.8
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I have done a fucking awful thing and its that I started a project and I'm using Flask and SQLAlchemy but the part I'm stuck on is something Ive never done in regular SQL, so I cant even communicate what I want to do properly.
Time to binge some SQL real quick. -
As a follow-up to my last rant, I figured out the SQL (well, WQL) query that would get me what I wanted: a collection of machines that had an error on a deployment.
I also figured out how to automate fixing the error'd machines and turning all of my possible fixes into one script that would also auto-deploy to the collection that was made with the query.
My senior coworker is impressed. He has been doing it manually for years and I was hired partially to take the load off of him. They're putting me on some more challenging projects and it's nice to be a better part of the team.
Not much of a rant, or even much of a developer thing, but I hope this bit of positivity makes for a lighter read in your Algo. -
Every time I see SQL scripts with cursors...
C'mon man. Set based operations are way more efficient.2 -
So I am struggling with a SQL Query for my Database lecture.
This is the Table Layout:
Users(id:integer, reputation:integer, display_name:string,
day:integer, month:integer, year:integer, location:string,
up_votes:integer, down_votes:integer, age:integer)
This is the task:
Show the set of users who have the highest reputation and the lowest down_votes
than any other user. HINT: there is no user that is better than all other users on each of the
criterion individually. Thus, you need a query that can eliminate users that are worse on both
criteria than some other user (in Economics your query will return what is known as the Pareto
Set).
I have looked up the Pareto Set but I am not really sure how to implement it into SQL.
So does any one of you know how to implement this or could anyone lead me into the right direction?
Help is very appreciated :)12 -
When I see job adverts asking for SQL skills it really puts me off. After seeing how database migrations and eloquent in Laravel work I don't know why anyone would write SQL queries again!8
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I got a report of a relatively simple WinForms app created by a senior (!!) developer who left just as it was released taking 3 minutes to load.
Step through it.. Narrow it down to one stored procedure.
Open said query, every join is a left join.
None needed to be a left join.
Change them all to inners, app now loads in 5 seconds.
Left Joins: For when people can't be assed to learn SQL basics. -
I hate pl-sql and data warehousing. For this project we're extracting from source tables using a generic method equal for every student, changing the data and then copying to a table for analytics.
Everyone's project is fine. Mine occupies 90mb and exceeds the quota already. Delivery due in 2 days... So much for that cs grad. FML. -
I have 2 server that run in production that using SQL Server Developer Edition and SQL Server Standard Edition.This was setup by shit people before they all resigned from the company.
I need to upgrade both server to Enterprise Edition.It give me a real pain since both server is on production side now.
Is it possible to upgrade it without any error or long downtime?3 -
I'm working on broadcasting changes in a SQL Server db using web sockets, but trying to not install anything because then I'd have to get our DBAs involved...
Spent hours trying to package a little node app that broadcasts the changes as an exe using nexe, realized for the most part it just compiles node from source, and the outputted binary didn't end up running, anyway.
Then it hit me; I can just run the node exe without installing it. Now I just have to get this service broker to work... -
When you deliver a site to a customer and find out that you forgot to prepare all the statements so that the website wouldn't be vulnerable to SQL injections. So yesterday I forgot to add that, had to close down all the connections to the website and rewrite all the statements. Everything is good now
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What’s the appeal of Microsoft SQL Server 2019 over something free like PostgreSQL or MariaDB?question windows servers windows sql server sql microsoft mariadb database mysql microsoft sql postgres postgresql6
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LEARNING QUESTION
I have been learning a lot of coding, front and back end web mainly (a touch of C# and Python but trying to keep my focus on web for now).
I am wondering where is the best place to learn about integration of SQL into other web programming (PHP for example).
Any tips are greatly appreciated.1 -
I needed to migrate one DB to another with one sql suite but instead I fucked up and suddenly disconnected both DBs, without being able to reconnect them again
I waisted a whole day for debugging, but found nothing
And guess which magic fixed all issues? On and Off a service of an app
On and Off!!!
The fun thing is that restarting the server didn't help, but the only service helped1 -
The guy was trying to upload MySQL into a PaaS SQL for last 1 week.
Me: Its SQL not MySQL
Guy: Yeah its PaaS, it works with both. -
Week2 day 1 of beeing in the database team to learn more sql. Turns out the task they want me to complete is rather easy. So this is day 2 of doing exactly nothing.
Also im not allowed to do the task all on my own since the other apprentice has to learn it too.
These short blocks never have any challenging tasks to do *sigh* -
!Rant .. I need some quick help and didnt know where to go.. so fellow ranters please help...
So I have created an sql trigger which is supposed to add a kill to a doctor whenever one of his patients changes state to "killed" . But I dont know how to just get the one row that is updated. As it looks now : The doctor get patientKilled ++ for every patient he ever had before as well... How can I solve this ?
USE [AD17_Hospital]
GO
/****** Object: Trigger [dbo].[PatientKilled] Script Date: 2017-10-21 19:51:32 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER TRIGGER [dbo].[PatientKilled] ON [dbo].[Patient]
AFTER UPDATE
AS
BEGIN
declare
SET NOCOUNT ON;
UPDATE Doctor set PatientsKilled+=1
FROM Doctor d
INNER JOIN inserted p
ON d.DoctorId= p.DoctorId
where p.PatientState='Killed'
END4 -
had a uni exam in databases (just closely didn't make it😒)
it didn't even have sql in it!?
questions about ER diagrams and draw a diagram, functional dependencies with given dependencies, find candidate key and what not, work on a b-tree (miserably failed😣), datalog (who the fuck cares about datalog? the least expected topic) and transaction management/serializability
whose idea was it to not include sql?? isn't it one the fundamental parts of relational databases?4 -
New dev here.
Got assigned a task which revolves around trying to figure out a 7000 character DB2 SQL (spaces not included).
Im dying a litle bit inside... -
What's your favorite way to expose a SQL database? Or interface with it?
Using mysql workbench right now and it's a bit much for my users.9 -
Merging datas using spark sql with two conditions.
my code:
1.merge with first condition
2.merge with second condition
3. 1.unionall(2)
This gives some extra datas(total=10000 and result=10220)
$better way?any way? -
when you find a single invisible character in each of your sql files in visual studio that causes a sql implosion saying
invalid syntax near ''
Sublime Text 3 and other tools didn't help. required manually finding this time, in 20 files..... with an overdue project.
I wanted to burn visual studio to the ground4 -
You guys have any good resource to learn SQL database design with ERDs? All I can find are really Basic examples but nothing that goes a bit deeper1
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I'm doing a code review and, it's not unheard of to have lowercase SQL im our codebase even though most of it is uppercase. For this reason I decided to let the lowercase SQL slide even though it makes me cringe so much... That is, until I came to one procedure that was uppercase and in this revision it is lowercase :O I want to die a gruesome way which would be very nice compared to this :O
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A friend outsourced a project to us with partial requirements. We developed it as per the requirements and submitted the app and admin portal to his client. I was aware of certain critical features missing in the requirement. Generally we provide an admin portal to manage the backend of the app, but in this project a backend was to be made but the adding or modifying users section was not mentioned in the requirement. My team presented the project and convinced them to create or modify users writing SQL queries on the production DB (they are sales guys with no technical knowledge)
P.S - we won't be responsible for any DB errors :P -
A question guys, I'm looking for a DB client. We are using SQL Management Server Studio, but its way way overkill for a frontend guy like me.
Min Requirements:
- Needs to be simple
- Must support MSSQL
- Plugin support and/or dark mode
- Free and/or not too buggy evaluation (like Sublime or Winrar)
- GUI should be reasonably modern
- Should also be native. Our database is a denormalized mess.6 -
Wrote some awesome methods in my application which writes products and their variations directly to SQL for a WooCommerce shop, avoiding uploading any images and constant handshakes for thousands of API calls for each product.
Been heavily criticised for it though as bad practice and to just use the API. I say fuck you, it's lightning fast and works well. Sure the API spec could change in a year but these methods will scale well.
Who agrees? -
Recently had trouble with some SQL. My tests would not pass, so I had to manually run it to debug it.
SELECT * FROM a JOIN b ON [...] WHERE b.foo NOTNULL
Yielded 0 of 3 rows. Expected 1
Tried querying WHERE b.foo ISNULL instead. Would have expected 2 of 3 rows, but got 1.
After googling i discovered that comparing with NULL does not return a true/false binary description, but may also return unknown if the type is not a NULL type, e.g. 42 ISNULL =" UNKNOWN
😳 -
Idea for the "why did I think of this" pile:
SQL console skill for Alexa/Google home. Data storage has never been so frustrating! -
!rant
Got a Job lately and therefore three Interviews.
In two of them was a question about SQL Injektion and no matter what teck stack you apply for that's the time to mention PHP :P1 -
hand-wrote me some gnarly-ass SQL today to resolve a prod "emergency". I was kinda proud that I did so and only had to google syntax once. Then my pride turned to shame when I realized what a spoiled little bitch LINQ has made of me.1
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Writing code in SQL Server Management Studio. I miss Vim. And don't mention the "Vim like plugings"8