TRUNC
TRUNC(a,n)?
TRUNC(a,n) is an arithmetic function with the following result (for the values a and n):
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 |
| a is floating point number | Floating point number |
| a is fixed point number | Fixed point number |
| a is the NULL value | NULL value |
| a is special NULL value | Special NULL value |
總結
