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Actions For DST Updates When Upgrading To Base Release (Doc ID 1522719.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Standard Edition - Version to [Release 8.1.7 to 12.1]
Oracle Database - Enterprise Edition - Version to [Release 8.1.7 to 12.1]
Information in this document applies to any platform.


To provide a step by step flow to determine if there are DST version implications when upgrading to .

The Oracle Java Virtual Machine (OJVM) also has DST information, but has no internal datatypes which store that information, hence this can be updated by simply applying the latest/newest OJVM DST patch available.


These steps should be followed before upgrading from 11.2.0.x, 11.1.0.x , 10.2.0.x, 10.1.0.x , 9.2.0.x or 9.0.1.x version to release.
The goal is to see what actions are needed on DST information before or after upgrading to
Used abbreviations:

TZ: TimeZone
TSTZ: TimeStamp with Time Zone
TSLTZ: TimeStamp with Local Time Zone
OJVM: Oracle Java Virtual Machine


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In this Document
 Things good to know:
 A) When Upgrading to choose the relevant older Oracle RDBMS version:
 A.1) When upgrading from,,, or to
 A.2) When upgrading from to
 A.3) When upgrading from to
 A.4) When upgrading from,, or to
 A.5) When upgrading from 10gR1 (10.1.0.x) to
 A.6) When upgrading from 9i (9.0.x or 9.2.0.x) to
 A.7) When upgrading from 8.1.7 to
 B) If your current timezone version is higher than DSTv18 when upgrading from,,, or to :
 C) If your current timezone version is lower than 18 (typically 4, 11 or 14) when upgrading from,,, or to :
 D) Do I also need to patch clients?
 F) What if I want to go to a higher DST version than DSTv18 during the upgrade?
 G) Why is the DST version seen in registry$database sometimes different than from v$timezone_file ?
 H) When should I NOT update the DST version to DSTv18 after upgrading to
 I) Do I NEED to update to DSTv18 after upgrading to

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