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Downgrade fails with ORA-20000: Upgrade from version 12.1.0 cannot be downgraded to version 12.1.0.2 (Doc ID 2737761.1)

Last updated on DECEMBER 29, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

During CDB downgrade  from 122 to 121, while executing catrelod.sql on 12.1 side, it fails with following error:


SQL> DECLARE
 2    p_prv_version sys.registry$.prv_version%type;
 3    p_version sys.registry$.version%type;
 4  BEGIN
 5    SELECT prv_version, version INTO p_prv_version, p_version
 6    FROM registry$ WHERE cid = 'CATPROC' AND namespace = 'SERVER';
 7    IF p_prv_version IS NOT NULL AND SUBSTR(p_prv_version,1,8) != '12.1.0.2' THEN
 8    RAISE_APPLICATION_ERROR (-20000,
 9       'Upgrade from version ' || p_prv_version ||
10       ' cannot be downgraded to version 12.1.0.2');
11    END IF;
12    IF p_version='12.1.0' THEN
13    update registry$ set version=p_prv_version WHERE cid = 'CATPROC' AND namespace = 'SERVER';
14    commit;
15    END IF;
16  END;
17  /
DECLARE
*
ERROR at line 1:
ORA-20000: Upgrade from version 12.1.0 cannot be downgraded to version 12.1.0.2
ORA-06512: at line 8

Changes

 

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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