Purpose

Use the ALTER HIERARCHY statement to rename or compile a hierarchy. For other alterations, use CREATE OR REPLACE HIERARCHY.

Prerequisites

To alter a hierarchy in your own schema, you must have the ALTER HIERARCHY system privilege. To alter a hierarchy in another user's schema, you must have the ALTER ANY HIERARCHY system privilege or have been granted ALTER directly on the hierarchy.

Syntax

alter_hierarchy::=

Description of the illustration alter_hierarchy.eps

Semantics

IF EXISTS

Specify IF EXISTS to alter an existing table.

Specifying IF NOT EXISTS with ALTER VIEW results in ORA-11544: Incorrect IF EXISTS clause for ALTER/DROP statement.

schema

Specify the schema in which the hierarchy exists. If you do not specify a schema, then Oracle Database looks for the hierarchy in your own schema.

hierarchy_name

Specify the name of the hierarchy.

RENAME TO

Specify RENAME TO to change the name of the hierarchy.

COMPILE

Specify COMPILE to compile the hierarchy.

new_hier_name

Specify a new name for the hierarchy.

Example

The following statement changes the name of a hierarchy:

ALTER HIERARCHY product_hier RENAME TO myproduct_hier;