Computer Science
DROP_TABLE(l) DROP_TABLE(l)
NAME
DROP TABLE - Removes existing tables from a database
SYNOPSIS
DROP TABLE name [, ...]
INPUTS
name The name of an existing table or view to drop.
OUTPUTS
DROP The message returned if the command completes suc-
cessfully.
ERROR Relation "name" Does Not Exist!
If the specified table or view does not exist in
the database.
DESCRIPTION
DROP TABLE removes tables and views from the database.
Only its owner may destroy a table or view. A table may be
emptied of rows, but not destroyed, by using DELETE.
If a table being destroyed has secondary indexes on it,
they will be removed first. The removal of just a sec-
ondary index will not affect the contents of the underly-
ing table.
NOTES
Refer to CREATE TABLE and ALTER TABLE for information on
how to create or modify tables.
USAGE
To destroy two tables, films and distributors:
DROP TABLE films, distributors;
COMPATIBILITY
SQL92
SQL92 specifies some additional capabilities for DROP
TABLE:
DROP TABLE table { RESTRICT | CASCADE }
RESTRICT
Ensures that only a table with no dependent views
or integrity constraints can be destroyed.
CASCADE
Any referencing views or integrity constraints will
also be dropped.
Tip: At present, to remove a referenced view you
must drop it explicitly.
SQL - Language Statements 15 August 1999 1
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