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Database NLS_CHARACTERSET conversion from WE8ISO8859P1 to AL32UTF8 impacts

edited Mar 11, 2011 2:34AM in Database Administration (MOSC) 1 commentAnswered
Hi,

I have oracle 10g RAC database. It has current characterset WE8ISO8859P1 and I want to change it AL32UTF8.

Below are my queries:

1. As WE8ISO8859P1 is subset of AL32UTF8 so is there any possibility of data loss or data corruption?

2. As per document (ID 969551.1) on knowledge base, it is do able and data loss or corruption is only possible in case we move from UTF8 to  WE8ISO8859P1 e.g.  one 2-byte UTF8 character in source may become 2 characters in target. But my case is vice versa so will i believe this won't occur in my case. Please confirm this.

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