标签：Mathematical RAND Functions return Transact functions value SQL input

Mathematical Functions (Transact-SQL)

APPLIES TO: SQL Server Azure SQL Database Azure SQL Data Warehouse Parallel Data Warehouse

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

 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.

标签：Mathematical,RAND,Functions,return,Transact,functions,value,SQL,input
来源： https://blog.csdn.net/cxu123321/article/details/96594733

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