Returns the corresponding angle in degrees for an angle specified in radians.
Transact-SQL Syntax Conventions
DEGREES ( numeric_expression )
Is an expression of the exact numeric or approximate numeric data type category, except for the bit data type.
Returns the same type as numeric_expression.
The following example returns the number of degrees in an angle of PI/2 radians.
SELECT 'The number of degrees in PI/2 radians is: ' + CONVERT(varchar, DEGREES((PI()/2))); GO
Here is the result set.
The number of degrees in PI/2 radians is 90 (1 row(s) affected)