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upgrade to oracle 11g

Posted on 2009-04-16
Medium Priority
Last Modified: 2013-11-11
I was going through the doc for DBUA upgrade to from on windows and come to know Timezone is very important factor.I check my for version of timezone and its shows me 3 and in the doc it is written it if time zone file is less than 4 then apply patch 5632264. my question is that if i go with DBUA(Direct) upgrade to from on window then i have give the patch to the or it is only for Manual upgrade methods.
I am not sure.

If i go for DUBA upgrade then DBUA is the one who wud take car himself for the timezone and make timezone version 3 to timezone version 4 .
Question by:N_sharma27
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LVL 48

Expert Comment

ID: 24167786
First upgrade to and the timezones will be there.

Author Comment

ID: 24177659
ok sir thankyou

Author Comment

ID: 24177671
one small think is in my mind, after upgrading to and then i will go for upgrade to
after upgrading to 11, can i delete the databases on which has been upgarded to
LVL 48

Accepted Solution

schwertner earned 200 total points
ID: 24178467
Upgrade will repair the timezones, nomater which upgrade (to or to
make a full cold back up before this if you use DBUA.
It is hard task and there is no quarantee you will succeed.
So the best way is to use Export/import way migrating to 11g.
Because before to upgrade you can check if the export dump file works,
how it works and so you will be sure that you can either return to 10g or  
move to 11g.
Set NLS_LANG on both DBs before this to avoid losing of nonEnglish letters (if any)!

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