Error ORA-12712 when changing the character set AL32UTF8 to nls

Hello

It is strongly advised to use the AL32UTF8 database character set when ever a database is used with our XML capabilities. The database character set in the installed base is WE8MSWIN1252. To use XML DB functionality, I need to change it to AL32UTF8. But, when I try to do that, I get ORA-12712: new character set must be a superset of the old character set. Is there a way to fix this?

Thanks in advance,
Divya.

Hello

a change of we8mswin1252 to al32utf8 is not directly possible. This is because al32utf is not a binary superset of we8mswin1252.

There are 2 options:
-use any export and import
-Use of the altar in a kind of limited

Depends on the method, you can choose the characters in the database, is that only ASCII then the other can work, in other cases, one is necessary.

It is all described in Note 260192.1support, "replacing the NLS_CHARACTERSET AL32UTF8 / UTF8 (Unicode). Get on-site support/metalink.

You can also read the chapters about it in the Guide of globalization: [url http://download.oracle.com/docs/cd/E11882_01/server.112/e10729/ch11charsetmig.htm#g1011430] change characterset.

Herald tiomela
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Tags: Database

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