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MySQL SIGN() Function

The sign() is a Math function of MySQL. This function is used to get a sign of the given number. If the number is less than 0, this function returns -1. If the number is 0 or 1 or greater than 0, this function returns 0.

Syntax

Parameter:

number: It is the number for getting a sign.

Returns:

This function returns the sign of the argument.

Example 1

Output:

Example 2

Output:

Example 3

Output: