1. SecureFiles and Large Objects Developer's Guide
  2. Managing LOBs: Database Administration
  3. Database Character Set Considerations

13.2 Database Character Set Considerations

The database character set cannot be changed from a single-byte to a multibyte character set if there are populated user-defined CLOB columns in the database tables.

The national character set cannot be changed between AL16UTF16 and UTF8 if there are populated user-defined NCLOB columns in the database tables.

See Also:

Choosing a Character Set