Upper rounding and rounding down methods in C # and Oracle

1. In C #:

--math.ceiling (double), which returns the largest integer greater than or equal to the specified double-precision floating-point number (also known as the take-up of the day plate value);

eg: Math.     Ceiling (1.01) = 2; Math. Ceiling (1.37) = 2;

--math.floor (double), which returns the largest integer less than or equal to the specified double-precision floating-point number (also known as the fetch floor value);

eg: Math.      Floor (1.99) = 1; Math. Floor (1.87) = 1;

In 2.Oracle:

Take the integer--ceil (number),

eg:select ceil(1.001) from dual; --the result is 2

Take the integer--floor (number),

eg: select Floor (1.999) from dual; --the result is 1

Upper rounding and rounding down methods in C # and Oracle