Re: Random numbers

Thanks bricklen.

I found another way in PostgreSQL 9.1.0 Documentation.

SELECT * INTO random_number FROM random(); -- random function gives me a random value among 0.0 -- and 1.0

SELECT * INTO rounded_number FROM round(random_number * 5); -- this line is completly obviously.

Saludos, Karel Riverón
Consejo Científico Estudiantil
Universidad de las Ciencias Informáticas

----- Original Message -----

| From: "bricklen" <bricklen(at)gmail(dot)com>
| To: "Karel Riveron Escobar" <kescobar(at)estudiantes(dot)uci(dot)cu>
| Cc: pgsql-general(at)postgresql(dot)org
| Sent: Saturday, May 25, 2013 11:50:03 AM
| Subject: Re: [GENERAL] Random numbers

| On Sat, May 25, 2013 at 8:45 AM, Karel Riveron Escobar <
| kescobar(at)estudiantes(dot)uci(dot)cu > wrote:

| | I want to generate random numbers in Pl/pgSQL. How can I do this?
|

| | To be more specific, I have to generate random numbers among 0 and
| | 5.
|
| One way:
| select n from unnest(ARRAY[0,1,2,3,4,5]) n order by random() limit 1;

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