Function: abs(numeric_expr)

This function returns the absolute value of the numeric expression.

SELECT abs(5 - 7), abs(-2), abs(2)
|
-->  2, 2, 2

Function: ceil(numeric_expr)

This function returns the numeric expression rounded up to nearest whole number.

SELECT ceil(13 / 2), ceil(6.5)
|
--> 7, 7

Function: floor(numeric_expr)

This function returns the numeric expression rounded down to the nearest whole number.

SELECT floor(13 / 2), floor(6.5)
|
--> 6, 6

Function: pow(numeric_expr1, numeric_expr2)

This function raises the first numeric expression to the power of the second numeric expression and returns the result.

SELECT pow(3 , 2), pow(3 , -2)
|
--> 9, 0.11111111111

Function: round(numeric_expr)

This function returns the numeric expression rounded up or down to the nearest whole number.

SELECT round(6.5), round(6.49), round(6.51)
|
--> 7, 6, 7

Function: sqrt(numeric_expr)

This function returns the square root of the numeric expression.

SELECT sqrt(36)
|
--> 6