Is there in way in SQL to select a row by random, so if it havd 1000 rows it picked row 200.

There is, in MySQL, the option to ORDER BY RANDOM, but only in recent versions, from memory 3.23, because I tried it, got an error, and then found that my host was using 3.22.
-- 
($_='jjjuuusssttt annootthheer
     pppeeerrrlll haaaccckkeer')=~y/a-z//s;print;

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In reply to Re: Username regex, MYSQL random by Cody Pendant
in thread Username regex, MYSQL random by Anonymous Monk

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