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  2. DBMS_EDITIONS_UTILITIES

63 DBMS_EDITIONS_UTILITIES

The DBMS_EDITIONS_UTILITIES package provides helper functions for edition-related operations.

The chapter contains the following topics:

63.1 DBMS_EDITIONS_UTILITIES Overview

The DBMS_EDITIONS_UTILITIES package implements an interface which provides helper functions for edition-related operations.

63.2 DBMS_EDITIONS_UTILITIES Security Model

This package is owned by SYS with execute access granted to PUBLIC. It runs with invoker's rights, that is, with the security profile of the caller.

63.3 DBMS_EDITIONS_UTILITIES Exceptions

The table in this topic lists exception messages created by DBMS_EDITIONS_UTILITIES.

Table 63-1 DBMS_EDITIONS_UTILITIES Error Messages

Error Description

ORA-38817

Insufficient privileges

ORA-942

Missing table

63.4 Summary of DBMS_EDITIONS_UTILITIES Subprograms

This table lists and describes the DBMS_EDITIONS_UTILITIES package subprograms.

Table 63-2 DBMS_EDITIONS_UTILITIES Package Subprograms

Subprogram Description

CLEAN_UNUSABLE_EDITIONS Procedure

Drops covered objects in unusable editions, and drops empty unusable editions if possible.

SET_EDITIONING_VIEWS_READ_ONLY Procedure

Given the schema name and table name, this procedure sets the corresponding editioning views in all editions to READ ONLY or READ/WRITE

SET_NULL_COLUMN_VALUES_TO_EXPR Procedure

For use only during an edition-based redefinition (EBR) exercise

63.4.1 CLEAN_UNUSABLE_EDITIONS Procedure

Drops all covered objects in any unusable editions and drops empty unusable editions.

Syntax

The CLEAN_UNUSABLE_EDITIONS procedure executes immediately and in its entirety. 

DBMS_EDITIONS_UTILITIES.CLEAN_UNUSABLE_EDITIONS ( );

Usage Notes

The COMPATIBLE parameter must be set to 12.2.0 or higher for this procedure to execute.

See Also:

63.4.2 SET_EDITIONING_VIEWS_READ_ONLY Procedure

Given the schema name and table name, this procedure sets the corresponding editioning views in all editions to READ ONLY or READ/WRITE.

Syntax 

DBMS_EDITIONS_UTILITIES.SET_EDITIONING_VIEWS_READ_ONLY (
   table_name IN VARCHAR2,
   owner      IN VARCHAR2 DEFAULT NULL,
   read_only  IN BOOLEAN  DEFAULT TRUE);

Parameters

Table 63-3 SET_EDITIONING_VIEWS_READ_ONLY Procedure Parameters

Parameter Description

table_name

Base table of the editioning views

owner

Base table schema. The default (or NULL) is the current schema.

read_only

TRUE to set the views to read-only; FALSE (or NULL) sets the views to READ/WRITE. Default is TRUE.

Usage Notes

The user must have the following privileges:

  • Owner of the table, or have the ALTER ANY TABLE system privileges

  • USE object privilege on all the editions for which the views are defined

63.4.3 SET_NULL_COLUMN_VALUES_TO_EXPR Procedure

This procedure replaces NULL values in a replacement column with the value of an expression.

The expression evaluation cost is deferred to future updates and queries. The procedure is intended for use only during an edition-based redefinition (EBR) exercise.

See Also:

Syntax 

DBMS_EDITIONS_UTILITIES.SET_NULL_COLUMN_VALUES_TO_EXPR;
   table_name    IN  VARCHAR2,
   column_name   IN  VARCHAR2,
   expression    IN  VARCHAR2);

Parameters

Table 63-4 SET_NULL_COLUMN_VALUES_TO_EXPR Procedure Parameters

Parameter Description

table_name

A potentially schema-qualified table name

column_name

Name of the column to be updated

expression

An expression composed of columns in the same table, constants, and SQL functions