TRUNC(a,n) 
TRUNC(a,n) is an arithmetic function with the following result (for the expressions a and n that are numbers):
TRUNC(a) –
truncate the decimal places of a
TRUNC(a,n) – truncate the number a after n decimal places
TRUNC(a,-n) – set n places in the number a before the decimal point to
0
|
Result of the TRUNC(a,n) function |
n>0 |
Number a that is truncated n places after the decimal point |
n=0 |
Integer component of a |
n<0 |
Number a that is truncated s places in front of the decimal point |
n not specified |
As with n=0 |
n is not an integer |
The integer component of n is used and the result is as with n>0, n=0, or n<0 |
Floating point number |
|
a is fixed point number |
Fixed point number |
a is the NULL value |
NULL Value |
a is a special NULL value |
Special NULL value |