Numeros Random - Postgres Matos - 12 08 09 21.11

SELECT random();
SELECT round(CAST (random()*100 AS NUMERIC),0);
SELECT 27 + round(CAST (random()*(91-27) AS NUMERIC),0);
SELECT -57 + round(CAST (random()*(91+57) AS NUMERIC),0); 
select version();
select current_time;
select current_date;
select now();
select 5+7-10+100
select current_user;
select current_database();



Numeros Randomicos