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Oracle® Database SQL Reference
10g Release 2 (10.2)

Part Number B14200-02
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TRUNC (date)

Syntax

trunc_date::=

Description of trunc_date.gif follows
Description of the illustration trunc_date.gif

Purpose

The TRUNC (date) function returns date with the time portion of the day truncated to the unit specified by the format model fmt. The value returned is always of datatype DATE, even if you specify a different datetime datatype for date. If you omit fmt, then date is truncated to the nearest day. Please refer to "ROUND and TRUNC Date Functions" for the permitted format models to use in fmt.

Examples

The following example truncates a date:

SELECT TRUNC(TO_DATE('27-OCT-92','DD-MON-YY'), 'YEAR')
  "New Year" FROM DUAL;
 
New Year
---------
01-JAN-92