Oracle Database Errors or Warnings from Error ORA-12710 to ORA-12719
ORA-12710: CREATE CONTROLFILE character set is not known
Cause: The character set specified when creating the control file is unknown.
ORA-12711: this CREATE CONTROLFILE character set is not allowed
Cause: It is not allowed to create a control file on a native ASCII-based machine using an EBCDIC-based character set, and vice versa.
ORA-12712: new character set must be a superset of old character set
Cause: When you ALTER DATABASE … CHARACTER SET, the new character set must be a superset of the old character set. For example, WE8ISO8859P1 is not a superset of the WE8DEC.
Action: Specify a superset character set.
ORA-12713: Character data loss in NCHAR/CHAR conversion
Cause: When character set conversion happens between CHAR and NCHAR either implicitly or explicitly, some characters are lost due to no mapping characters in the destination character set.
Action: Make sure all the characters can be mapped to destination character set or set NLS_NCHAR_CONV_EXCP to be FALSE.
ORA-12714: invalid national character set specified
Cause: Only UTF8 and AL16UTF16 are allowed to be used as the national character set
Action: Ensure that the specified national character set is valid
ORA-12715: invalid character set specified
Cause: The character set specified is not allowed for this operation or is invalid
Action: Ensure that the specified character set is valid
ORA-12716: Cannot ALTER DATABASE CHARACTER SET when CLOB data exists
Cause: CLOB data changes representation to Unicode when converting to a multibyte character set and must be migrated
Action: Remove CLOB data as listed in the alert file. CLOB data can be migrated by methods such as import/export
ORA-12717: Cannot issue ALTER DATABASE NATIONAL CHARACTER SET when NCLOB, NCHAR or NVARCHAR2 data exists
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.
ORA-12718: operation requires connection as SYS
Cause: This command can only be run when connecting as SYS
Action: Connect as SYS to run this command
ORA-12719: operation requires database is in RESTRICTED mode
Cause: This command can only be run when the database is in RESTRICTED mode
Action: Ensure that the system is in RESTRICTED mode
Above are list of Oracle Database Errors or Warnings from Error ORA-12710 to ORA-12719 received while performing certain operation against Oracle Database or related products.
What are Oracle Database Error Messages?
Oracle Error Messages may be returned while using products which are part of Oracle Database. Each Oracle Database Error or Warning Message mentioned above contains the Warning or Error Message Statement, a short explanation of the probable causes of the Error message, and a recommended action.
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Information about Oracle Database Error Messages or Warning Messages on Windows and Linux Operating Systems.