Answer / guest

Cause: A command was entered that requires a maintenance
channel, and no maintenance channel is allocated, or none of
the appropriate type.

Action: Use ALLOCATE CHANNEL FOR MAINTENANCE before deleting
backup pieces, or using the CROSSCHECK or DELETE EXPIRED
commands. Proxy copies require a non-DISK channel.

Please add more information about this Error

ORA-21779: duration not active

1 Answers  

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NNO-00109: line string: invalid data type name "string", data ignored

1 Answers  

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ORA-04080: trigger 'string' does not exist

1 Answers  

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TNS-01153: Failed to process string: string

1 Answers  

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DRG-11804: Created

1 Answers  

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ORA-31649: Master process string violated startup protocol.

1 Answers  

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ORA-01929: no privileges to GRANT

1 Answers  

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ORA-22311: type for attribute "string" does not exist

1 Answers  

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ORA-01876: year must be at least -4713

1 Answers  

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DRG-52110: error in writing extended knowledge base

1 Answers  

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RMAN-06109: changed archive log unavailable

1 Answers  

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ORA-07280: slsget: unable to get process information.

1 Answers  

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