Feb 10, 2017

Sqlite: how to generate a random number within range 0..99


The Sqlite random() function will returns a pseudo-random integer between -9223372036854775808 and +9223372036854775807.

abs() will returns the absolute value of the numeric argument

floor() or round() will return a floating-point value X rounded to Y digits to the right of the decimal point. If the Y argument is omitted, it is assumed to be 0.

NB:floor() will only work within SQLExplorer, Dbeaver, ...


select floor(abs(random()/92233720368547758.07));
will generate within 0..99

select round(abs(random()/92233720368547758.07),0);
will generate within 1..100

No comments:


Related Posts Plugin for WordPress, Blogger...