ATN2
Returns the angle, in radians, between the positive x-axis and the ray from the origin to the point (y, x), where x and y are the values of the two specified float expressions.
Syntax
ATN2 ( float_expression , float_expression )
Arguments
float_expression
Is an expression of the float data type.
Return types
float
Examples
SELECT ATN2(0.50, 0.50);