Mathematical Functions (Transact-SQL)

THIS TOPIC APPLIES TO: yesSQL Server (starting with 2012)noAzure SQL DatabasenoAzure SQL Data Warehouse noParallel Data Warehouse

The following scalar functions perform a calculation, usually based on input values that are provided as arguments, and return a numeric value:

ABS DEGREES RAND
ACOS EXP ROUND
ASIN FLOOR SIGN
ATAN LOG SIN
ATN2 LOG10 SQRT
CEILING PI SQUARE
COS POWER TAN
COT RADIANS
Note

Arithmetic functions, such as ABS, CEILING, DEGREES, FLOOR, POWER, RADIANS, and SIGN, return a value having the same data type as the input value. Trigonometric and other functions, including EXP, LOG, LOG10, SQUARE, and SQRT, cast their input values to float and return a float value.

All mathematical functions, except for RAND, are deterministic functions. This means they return the same results each time they are called with a specific set of input values. RAND is deterministic only when a seed parameter is specified. For more information about function determinism, see Deterministic and Nondeterministic Functions.

See Also

Built-in Functions (Transact-SQL)