DROP TABLE
DROP TABLE — remove a table
Synopsis
DROP TABLE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]Description
DROP TABLE removes tables from the database. Only the table owner, the schema owner, and superuser can drop a table. To empty a table of rows without destroying the table, use DELETE or TRUNCATE.
DROP TABLE always 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, CASCADE must be specified. (CASCADE will 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), and in turn all objects that depend on those objects (see Section 5.13).
-
RESTRICT -
Refuse to drop the table if any objects depend on it. This is the default.
Examples
To destroy two tables, films and distributors:
DROP TABLE films, distributors;Compatibility
This command conforms to the SQL standard, except that the standard only allows one table to be dropped per command, and apart from the IF EXISTS option, which is a PostgreSQL extension.
See Also
ALTER TABLE, CREATE TABLE© 1996–2019 The PostgreSQL Global Development Group
Licensed under the PostgreSQL License.
https://www.postgresql.org/docs/10/sql-droptable.html