Truncates a number to the number of digits specified by num_digits.
Examples:
TRUNC(1.267, 0) returns 1
TRUNC(1.267, 1) returns 1.2
TRUNC(1.267, 2) returns 1.26
Note that unlike ROUND(x, y) the TRUNC function makes no attempt to round a number up or down.
See also: