ORA-00236 Snapshot Operation Disallowed Mounted Control File is a Backup

Error Code
ORA-00236

Description
Snapshot operation disallowed, mounted control file is a backup.

Cause
Possible cause of this error is, attempting to invoke cfileSetSnapshotName, cfileMakeAndUseSnapshot, or cfileUseSnapshot when the currently mounted control file is a backup control file.

Action
To fix this issue, mount a current control file and retry the operation.

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ORA-00235 Control File Fixed Table Inconsistent due to Concurrent Update

Error Code
ORA-00235

Description
Control file fixed table inconsistent due to concurrent update.

Cause
Possible cause of this error is, concurrent update activity on a control file caused a query on a control file fixed table to read inconsistent information.

Action
To fix this issue, retry the operation.

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ORA-00234 Error in Identifying or Opening Snapshot or Copy Control File

Error Code
ORA-00234

Description
Error in identifying or opening snapshot or copy control file

Cause
Possible cause of this error is, a snapshot or copy control file of the specified name could not be found or opened during an invocation of cfileUseSnapshot, cfileMakeAndUseSnapshot, or cfileUseCopy.

Action
To fix this issue, re-create the snapshot or copy control file using cfileMakeAndUseSnapshot or ALTER DATABASE BACKUP CONTROLFILE, respectively.

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ORA-00233 Copy Control File is Corrupt or Unreadable

Error Code
ORA-00233

Description
Copy control file is corrupt or unreadable.

Cause
Possible cause of this error is, the specified copy control file was found to be corrupt or unreadable during an invocation of cfileUseCopy.

Action
To fix this issue, before retrying cfileUseCopy, use the ALTER DATABASE BACKUP CONTROLFILE command and specify the same filename that was specified for cfileUseCopy.

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ORA-00232 Snapshot Control File is Nonexistent Corrupt or Unreadable

Error Code
ORA-00232

Description
Snapshot control file is nonexistent, corrupt, or unreadable.

Cause
Possible cause of this error is, the snapshot control file was found to be nonexistent, corrupt, or unreadable during an invocation of cfileUseSnapshot.

Action
To fix this issue, call cfileMakeAndUseSnapshot again or for the first time.

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