TRUNC (Expression)

Returns a number truncated to a certain number of decimal places.

SQL syntax

TRUNC (Expression [,m]) 

Parameters

TRUNC has the parameters:

Parameter	Description
Expression	The Expression to truncate. Operands must be of type NUMBER. An error is returned if operands are not of type NUMBER. The value returned is of type NUMBER.
[,m]	The number of decimal places to truncate to. If m is omitted, then the number is truncated to 0 places. The value of m can be negative to truncate (make zero) m digits left of the decimal point.

Examples

SELECT TRUNC (15.79,1) FROM dual;
< 15.7 >
1 row found.

SELECT TRUNC (15.79,-1) FROM dual;
< 10 >
1 row found.