PostgreSQL MOD() Function

The PostgreSQL MOD() function returns the remainder of x divided by y. In special cases it returns the following:

• If the number y is 0, then this function returns an error.
• If x or y or both are NULL, then this function returns an error.

Syntax

MOD(x, y)

Parameters

Return Value

Returns the remainder of x divided by y.

Example 1:

The example below shows the usage of MOD() function.

SELECT MOD(12, 3);
Result: 0

SELECT MOD(14, 3);
Result: 2

SELECT MOD(13.5, 3.1);
Result: 1.1

SELECT MOD(13.5, -3.1);
Result: 1.1

Example 2:

Consider a database table called Sample with the following records:

To calculate the remainder of division operation, where records of column x is divided by records of column y, the following query can be used:

SELECT *, MOD(x, y) AS MOD_Value FROM Sample;

This will produce the result as shown below: