Vertica Analytics Platform Version 9.2.x Documentation

DROP TABLE

List of semicolon-separated search terms this topic is recommened for:

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 ] [ [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.

[database.]schema

Specifies a schema, by default public. If schema is any schema other than public, you must supply the schema name. For example:

myschema.thisDbObject

If you specify a database, it must be the current database.

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