ORA-12717: Cannot issue ALTER DATABASE NATIONAL CHARACTER
SET when NCLOB, NCHAR or NVARCHAR2 data exists
Answer / guest
Cause: NCLOB, NCHAR or NVARCHAR2 data changed the
representation to Unicode when converting to a multibyte
character set and must be migrated.
Action: Remove NCLOB, NCHAR or NVARCHAR2 data as listed in
the alert file. The above type data can be migrated by
methods such as import/export.
Please add more information about this Error
| Is This Answer Correct ? | 1 Yes | 0 No |
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ORA-01033: ORACLE initialization or shutdown in progress
PLS-00103: %s
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ORA-27071: unable to seek to desired position in file
O2I-00123: Unable to close the INITFILE file
ORA-23333: column string is already part of a column group
ORA-02154: a tablespace with the name 'string' is found
ORA-29298: Character set mismatch
TNS-00266: Navigator: Unknown Request