rand

This function is used to return an evenly distributed random number that is greater than or equal to 0 and less than 1.

rand(INT seed)

**Table 1** Parameter
Parameter	Mandatory	Type	Description
seed	No	INT	The value can be a float, integer, or string. If this parameter is specified, a stable random number sequence is obtained within the same running environment.

The return value is of the DOUBLE type.

The value 0.3668915240363728 is returned.

select rand();

The value 0.25738143505962285 is returned.

select rand(3);

Parent topic: Mathematical Functions

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