Generate a random number in the range 1 - 10

Question

Since my approach for a test query which I worked on in this question did not work out, I\'m trying something else now. Is there a way to tell pg\'s random() fu

Answer 1

The correct version of hythlodayr's answer.

-- ERROR:  operator does not exist: double precision % integer
-- LINE 1: select (trunc(random() * 10) % 10) + 1

The output from trunc has to be converted to INTEGER. But it can be done without trunc. So it turns out to be simple.

select (random() * 9)::INTEGER + 1

Generates an INTEGER output in range [1, 10] i.e. both 1 & 10 inclusive.

For any number (floats), see user80168's answer. i.e just don't convert it to INTEGER.