PostgreSQL drop table (en)

Name

Drop table -- remove a table

Synopsis

 
Drop Table [If exists]Name[,...] [Cascade | restrict]
 

Description

Drop tableRemoves tables from the database. Only its owner can drop a table. to empty a table of rows without destroying the table, use delete or truncate.

Drop tableAlways removes any indexes, rules, triggers, and constraints that exist for the target table. However, to drop a table that is referenced by a view or a foreign-key constraint of another table,CascadeMust be specified .(CascadeWill remove a dependent view entirely, but in the foreign-key case it will only remove the foreign-key constraint, Not the other table entirely .)

Parameters

If exists

Do not throw an error if the table does not exist. A notice is issued in this case.

Name

The name (optionally Schema-qualified) of the table to drop.

Cascade

Automatically drop objects that depend on the table (such as views ).

Restrict

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

Examples

To destroy two tables,FilmsAndDistributors:

 
Drop TableFilms, distributors;
 

See also

Alter table, CREATE TABLE

 

Http://www.postgresql.org/docs/9.1/static/sql-droptable.html