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```