Answer / guest

Cause: there are rule engine objects in the database that
cannot be downgraded.

Action: check utlincmp.sql and remove all incompatible rules
engine objects before downgrade.

Please add more information about this Error

NNL-00550: flush [<server_list>] : flush one or more servers' cache(s)

1 Answers  

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ORA-07508: scgfal: $deq all unexpected return

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ORA-13480: the Source Type is not supported

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PCB-00106: Unable to open INCLUDE file "string"

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ORA-07614: $CHANGE_CLASS failed in retrieving the user's process label

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ORA-12531: TNS:cannot allocate memory

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ORA-26505: unexpected internal null

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KUP-04069: error fetching data for external table

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ORA-23462: flavor string in use at site string

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ORA-02881: sou2o: Could not revoke access to protected memory

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RMAN-08046: channel string: starting compressed full datafile backupset

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TNS-12611: TNS:operation is not portable

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