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Oracle Changing the Character Set of an Oracle Database

Oracle Changing the Character Set of an Oracle Database

Changing the Character Set After Database Creation

In some cases, you may wish to change the existing database character set. For instance, you may find that the number of languages that need to be supported in your database have increased. In most cases, you will need to do a full export/import to properly convert all data to the new character set. However, if and only if, the new character set is a strict superset of the current character set, it is possible to use the ALTER DATABASE CHARACTER SET to expedite the change in the database character set.