# phpman > man > DROP_COLLATION(7)

DROP [COLLATION(7)](https://www.chedong.com/phpMan.php/man/COLLATION/7/markdown)                  PostgreSQL 14.23 Documentation                  DROP [COLLATION(7)](https://www.chedong.com/phpMan.php/man/COLLATION/7/markdown)



## NAME
       DROP_COLLATION - remove a collation

## SYNOPSIS
       DROP COLLATION [ IF EXISTS ] _name_ [ CASCADE | RESTRICT ]

## DESCRIPTION
       **DROP** **COLLATION** removes a previously defined collation. To be able to drop a collation, you
       must own the collation.

## PARAMETERS
       IF EXISTS
           Do not throw an error if the collation does not exist. A notice is issued in this case.

       _name_
           The name of the collation. The collation name can be schema-qualified.

       CASCADE
           Automatically drop objects that depend on the collation, and in turn all objects that
           depend on those objects (see Section 5.14).

       RESTRICT
           Refuse to drop the collation if any objects depend on it. This is the default.

## EXAMPLES
       To drop the collation named german:

           DROP COLLATION german;

## COMPATIBILITY
       The **DROP** **COLLATION** command conforms to the SQL standard, apart from the IF EXISTS option,
       which is a PostgreSQL extension.

## SEE ALSO
       ALTER COLLATION (**ALTER**___**[COLLATION**(7)](https://www.chedong.com/phpMan.php/man/COLLATION/7/markdown)), CREATE COLLATION (**CREATE**___**[COLLATION**(7)](https://www.chedong.com/phpMan.php/man/COLLATION/7/markdown))



PostgreSQL 14.23                                2026                               DROP [COLLATION(7)](https://www.chedong.com/phpMan.php/man/COLLATION/7/markdown)