Converts a number from degrees to radians.
RADIANS( numeric-expression )
numeric-expression A number, in degrees. This angle is converted to radians.
This function converts its argument to DOUBLE, performs the computation in double-precision floating point, and returns a DOUBLE as the result.
SQL/2003 Vendor extension.
The following statement returns a value of approximately 0.5236.
SELECT RADIANS( 30 );