Title: DROP TABLE Author: The PostgreSQL Global Development Group Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/> Date: 2017 Manual: PostgreSQL 9.6.5 Documentation Source: PostgreSQL 9.6.5 Language: English
NAMEDROP_TABLE - remove a table
DROP TABLE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ]
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(7) or TRUNCATE(7).
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.)
- Do not throw an error if the table does not exist. A notice is issued in this case.
- The name (optionally schema-qualified) of the table to drop.
- Automatically drop objects that depend on the table (such as views).
- Refuse to drop the table if any objects depend on it. This is the default.
To destroy two tables, films and distributors:
DROP TABLE films, distributors;
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.