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Oracle upgrade basics



Start here to learn Oracle upgrade best practices and other basics. Troubleshoot Oracle errors and other issues you may encounter during the upgrade process.
BROWSE SUBCATEGORIES:  General information about Oracle upgrades (20),  Oracle upgrade troubleshooting and errors (15) 
  General information about Oracle upgrades: 1 - 3 of 20

Five DBA best practices
Former DBA of the Year Arup Nanda provides five best practices for the Oracle DBA.
How to run DBUA?
I have met all prerequisites to upgrade my DB from 8.1.7.1.0 to 9.2.0.6, following steps on part No. A96530-02. Chapter 3 says I must run 'DBUA' but I can't find it.
Information on Oracle upgrade documentation
Where can I find a good source of information on Oracle migration/upgrade documentation on Oracle's Technology Network Web site? Please provide the link to that site.
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  Oracle upgrade troubleshooting and errors: 1 - 3 of 15

ORA-01034 with migration
I'm about to migrate an instance from 8.1.7 to version 9.2.0.6. Both of these version are in the same machine. When I migrate using DBUA from $ORACLE9_HOME/bin, I get the error message "ORA-01034: ORACLE not available."...
ORA-01092 error with upgrade
I am trying to upgrade from Oracle 8.1.7 to 9.2.0.6. I changed the dump file destinations in the init file and set the env variables accordingly. When I did startup pfile = '../init.ora' I got the "ORA-01092" error.
Problems encountered during upgrade to 10g
I'm trying to upgrade from Oracle 9.0.1.4 to Oracle 10g. Can you please tell me the problems I'm likely to encounter during upgrade?
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