RAND

Applies to ✅ Open Source Edition ✅ Express Edition ✅ Professional Edition ✅ Enterprise Edition

The RAND() function produces a random number.

SELECT rand();

create.select(rand()).fetch();

The result being

+------+
| rand |
+------+
|    4 | chosen by fair dice roll
+------+

Dialect support

This example using jOOQ:

rand()

Translates to the following dialect specific expressions:

-- ACCESS
rnd

-- ASE, AURORA_MYSQL, BIGQUERY, CUBRID, DB2, FIREBIRD, H2, HANA, HSQLDB, IGNITE, MARIADB, MEMSQL, MYSQL, SQLDATAWAREHOUSE, 
-- SQLSERVER, SYBASE
rand()

-- AURORA_POSTGRES, COCKROACHDB, DERBY, INGRES, POSTGRES, REDSHIFT, SQLITE, VERTICA
random()

-- ORACLE
DBMS_RANDOM.RANDOM

-- TERADATA
(CAST((random(-2147483648, 2147483647) + 2147483648) AS NUMERIC(38, 19)) / 4294967295)

-- EXASOL, INFORMIX, SNOWFLAKE
/* UNSUPPORTED */

(These are currently generated with jOOQ 3.15, see #10141)

The jOOQ User Manual : SQL building : Column expressions : Numeric functions : RAND

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