2309534 - DST problem when upgrading to 12c | SAP Knowledge Base Article

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2309534 - DST problem when upgrading to 12c

Symptom

You are upgrading your oracle database from source release 10.2.0.5 or 11.2.0.3 or 11.2.0.4 to target release oracle database 12c release1 (12.1.0.2).
In Pre-upgrade phase, when running pre_upgrade_checks.sql, you get errors as below:

***
ERROR: --> New Timezone File in use
Database is using a time zone file newer than version 18.
BEFORE upgrading the database, patch the new
ORACLE_HOME/oracore/zoneinfo/ with a time zone data file of the
same version as the one used in the <source database version> release database.
***

You can run following command to check the currently used TimeZone file version in the source database. You can see the returned version is higher than 18.
SQL> conn / as sysdba
Connected.
SQL> SELECT version FROM v$timezone_file;


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Keywords

New Timezone File, Oracle upgrade, 12C, 12.1.0.2, DST, version 18, time zone file , KBA , BC-DB-ORA , Oracle , Problem

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