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Joined devRant on 2/20/2018
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React Training offering discounts to anyone who isn't a... I'll let you guess.
Just thought it was funny that they'd list all this criteria instead of opting for the easier "As long as you're not a straight white guy"
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Today, for fun, I wrote prime number generation upto 1000 using pure single MySQL query.
No already created tables, no procedures, no variables. Just pure SQL using derived tables.
So does this mean that pure SQL statements do not have the halting problem?
Putting an EXPLAIN over the query I could see how MySQL guessed that the total number of calculations would be 1000*1000 even before executing the query in itself and this is amazing ♥️
I have attached a screenshot of the query and if you are curious, I have also left below the plain text.
PS this was a SQL problem in Hackerrank.
MySQL query:
select group_concat(primeNumber SEPARATOR '&') from
(select numberTable.number as primeNumber from
(select cast((concat(tens, units, hundreds)+1) as UNSIGNED) as number from
(select 0 as units union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) unitsTable,
(select 0 as tens union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) tensTable,
(select 0 as hundreds union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) hundredsTable order by number) numberTable
inner join
(select cast((concat(tens, units, hundreds)+1) as UNSIGNED) as divisor from
(select 0 as units union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) unitsTable,
(select 0 as tens union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) tensTable,
(select 0 as hundreds union select 1 union select 2 union select 3 union select 4 union select 5 union select 6 union select 7 union select 8 union select 9) hundredsTable order by divisor) divisorTable
on (divisorTable.divisor<=numberTable.number and divisorTable.divisor!=1)
where numberTable.number%divisorTable.divisor=0
group by numberTable.number having count(*)<=1 order by numberTable.number) resultTable;
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I was just an average student in school, but my senior from DSC, changed my life and the developer now I am is because of DSC. DSC is powered by Google Developer and now I'm a lead of my college.
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**Ahem**
https://google.com/search/...
"Never assume that data useless to your application is useless to all others - we are asking it different questions"
Privacy is dead because we could disseminate valuable data from crap if our lives depended on it, discarding simple key values for over analysed crap metrics every time.
Oh, and it's also screwing us over... if your keen know more about getting fucked go take a look at @linux 's rant about the matrix.org hack
- https://devrant.com/rants/2061177/...
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So @Linux suggested to make a face revealing rant!
This is the face behind @linuxxx! post yours BUT only if you're comfortable with it :).
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