What is TRUNC date in Oracle?

What is TRUNC date in Oracle?

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.

What does TRUNC () do?

TRUNC removes the fractional part of the number. INT rounds numbers down to the nearest integer based on the value of the fractional part of the number. INT and TRUNC are different only when using negative numbers: TRUNC(-4.3) returns -4, but INT(-4.3) returns -5 because -5 is the lower number.

What is TRUNC command in SQL?

The TRUNC function replaces the value of its first argument with another value that has a smaller precision or the same precision. The TRUNCATE statement deletes all of the rows from a database table, without dropping the table schema.

What does TRUNC Sysdate mean?

TRUNC(SYSDATE) removes the time element from the date. Any date that has been fed through the TRUNC function has a date of midnight. Consequently, TRUNC(SYSDATE) is always earlier than SYSDATE (unless you execute it on the very moment of midnight).

What is the difference between Sysdate and TRUNC Sysdate?

SYSDATE is of DATE data type. DATE data type has date and time. TRUNC( http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions201.htm ) strips the time portion from DATE.

How do I truncate a timestamp?

If you want to TRUNC to the second, there are a few ways to do that. A couple of the simplest are using Date addition of 0 which will implicitly convert TIMESTAMP to a DATE, dropping the fractional seconds and then add 0 which, obviously, doesn’t change the value. Then CAST that result back to a TIMESTAMP.

How do I trunc a date?

Its default value is DD that instructs the TRUNC() function to truncate the date to midnight….2) format.