DROP TABLE

DROP TABLE;delete table;.

Removes one or more tables and their projections. When you run DROP TABLE, the change is auto-committed.

Syntax

DROP TABLE [ IF EXISTS ] [[{namespace. | database. }]schema.]table[,...] [ CASCADE ]

Parameters

IF EXISTS
Specifies not to report an error if one or more of the tables to drop does not exist. Use this clause in SQL scripts to avoid errors on dropping non-existent objects before attempting to create them.
{ namespace. | database. }
Name of the database or namespace that contains table, depending on the mode of the database:
  • Eon Mode: name of the namespace to which table belongs. If unspecified, the namespace is assumed to be default_namespace.
  • Enterprise Mode: name of the database. If specified, it must be the current database.
schema
Name of the schema, by default public. If you specify the namespace or database name, you must provide the schema name, even if the schema is public.
table
The table to drop.
CASCADE
Specifies to drop all projections of the target tables. CASCADE is optional if the target tables have only auto-projections. If you omit this option and any of the tables has non-superprojections, Vertica returns an error and rolls back the entire drop operation.

This option is not valid for external tables.

Privileges

Non-superuser:

Requirements

  • Do not cancel an executing DROP TABLE. Doing so can leave the database in an inconsistent state.

  • Check that the target table is not in use, either directly or indirectly—for example, in a view.

  • If you drop and restore a table that is referenced by a view, the new table must have the same name and column definitions.

Examples

See Dropping tables

See also