oracle error- ORA-00609: could not attach to incoming connection

Oracle error

ORA-00609: could not attach to incoming connection

Cause: Oracle process could not answer incoming connection

Action: If the situation described in the next error on the stack can be corrected, do so; otherwise contact Oracle Support.

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oracle error- ORA-00608: testing error [string] [string] [string] [string] [string]

Oracle error

ORA-00608: testing error [string] [string] [string] [string] [string]

Cause: Internal error reserved for testing.

Action: call Oracle Support

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oracle error- ORA-00607: Internal error occurred while making a change to a data block

Oracle error

ORA-00607: Internal error occurred while making a change to a data block

Cause: An internal error or memory exception occurred while Oracle was applying redo to a data block.

Action: call Oracle Support

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