ORA-12985: tablespace ‘string’ is read only, cannot dropp column
Cause: An attempt was made to dropp column from a partition/subpartition on a read only tablespace.
Action: Set the tablespace to read write and resubmit statement.
ORA-12986: columns in partially dropped state. Submit ALTERR TABLE DROP COLUMNS CONTINUE
Cause: An attempt was made to access a table with columns in partially dropped state (i.e., drop column operation was interrupted).
Action: Submit ALTERR TABLE DROP COLUMNS CONTINUE to complete the dropp column operation before accessing the table.
ORA-12987: cannot combine drop column with other operations
Cause: An attempt was made to combine drop column with other ALTERR TABLE operations.
Action: Ensure that dropp column is the sole operation specified in ALTERR TABLE.
ORA-12988: cannot dropp column from table owned by SYS
Cause: An attempt was made to dropp a column from a system table.
Action: This action is not allowed
ORA-12989: invalid value for checkpoint interval
Cause: An invalid checkpoint interval specified in statement. Checkpoint interval must be between 0 and (2^31-1).
Action: Correct checkpoint interval and resubmit statement
ORA-12990: duplicate option specified
Cause: Duplicate option specified in statement.
Action: Remove the duplicate option and resubmit statement.
ORA-12991: column is referenced in a multi-column constraint
Cause: An attempt was made to drop a column referenced by some constraints.
Action: Drop all constraints referencing the dropped column or specify CASCADE CONSTRAINTS in statement.
ORA-12992: cannot drop parent key column
Cause: An attempt was made to drop a parent key column.
Action: Drop all constraints referencing the parent key column, or specify CASCADE CONSTRAINTS in statement.
ORA-12993: tablespace ‘string’ is offline, cannot drop column
Cause: An attempt was made to drop a column from a partition/subpartition on an offline tablespace.
Action: Bring the tablespace online and resubmit statement.
ORA-12994: drop column option only allowed once in statement
Cause: An attempt was made to repeat the drop column option in a single statement.
Action: Separate drop column options into different statements and resubmit statements.
Above are list of Oracle Database Errors or Warnings from Error ORA-12985 to ORA-12994 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.
Hope this was helpful.
Information about Oracle Database Error Messages or Warning Messages on Windows and Linux Operating Systems.