Oracle | DBMS_REGISTRY

Oracle DBMS_REGISTRY_EXTENDED Version 26ai

General Information

Library Note

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The best Oracle News for FY2026

Oracle Database 26ai will be available on generic Linux platforms in January and soon on AIX and Windows

Purpose Utility supporting Pre-upgrade, Upgrade, and Downgrade.

AUTHID DEFINER

Dependencies

DBMS_STANDARD

Documented No

First Available 12.2

Security Model Owned by SYS with

Source {ORACLE_HOME}/rdbms/admin/dbms_registry_extended.sql

Subprograms

COMPARE_VERSIONS	ELEMENT	OCCURS
CONVERT_VERSION_TO_N_DOTS

COMPARE_VERSIONS

Returns 1 if the first parameter is of a higher version than the later, zero if the same, otherwise -1

Overload 1 dbms_registry_extended.compare_versions( version1 IN VARCHAR2, version2 IN VARCHAR2) RETURN NUMBER;

SELECT dbms_registry_extended.compare_versions('19.17.0.1', '23.4.0.1')  AS RETVAL;

      

      RETVAL

      ------

          -1

      

      SELECT dbms_registry_extended.compare_versions('23.4.0.0', '12.1.0.2')  AS RETVAL;

      

      RETVAL

      ------

           1

Same as Overload 1 except it compares only the number of digits indicated by the "number_of_dots" parameter
Overload 2 dbms_registry_extended.compare_versions( version1 IN VARCHAR2, version2 IN VARCHAR2, number_of_dots IN NUMBER) RETURN NUMBER;

SELECT dbms_registry_extended.compare_versions('19.17.0.1', '19.1.0.1', 
      3)  AS RETVAL;

      

      RETVAL

      ------

           0

      

      SELECT dbms_registry_extended.compare_versions('10.2.0.1', '23.4.0.1', 
      3) AS RETVAL;

      

      RETVAL

      ------

          -1

CONVERT_VERSION_TO_N_DOTS

Returns the version number with n number of decimal places with value zero dbms_registry_extended.convert_version_to_n_dots( version IN VARCHAR2, n IN NUMBER) RETURN VARCHAR2;

SELECT dbms_registry_extended.convert_version_to_n_dots('23', 
      4);

      

      DBMS_REGISTRY_EXTENDED.CONVERT_VERSION_TO_N_DOTS('23',2)

      ---------------------------------------------------------

      23.0.0

ELEMENT

Returns the element between the specified delimiters in the element_number position dbms_registry_extended.element( src IN VARCHAR2, delimiter IN CHAR, element_number IN NUMBER) RETURN VARCHAR2;

SELECT dbms_registry_extended.element('19.17.0.1', '23.26.0.1', 2) AS RETVAL;

      

      RETVAL

      ---------

      23.26.0.1

      

      SELECT dbms_registry_extended.element('12.2.0.1', '23.4.0.1', 1) AS RETVAL

      

      RETVAL

      ---------

      12.2.0.1

OCCURS

Returns the number of occurrences of the search string in the source dbms_registry_extended.occurs( src IN VARCHAR2, search_string IN VARCHAR2) RETURN NUMBER;

SELECT dbms_registry_extended.occurs('Dan Morgan', 'an');

      

      DBMS_REGISTRY_EXTENDED.OCCURS('DANMORGAN','AN')

      -----------------------------------------------

                                                    2