Oracle Database Errors or Warnings from Error ORA-24397 to ORA-24406

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ORA-24397: error occured while trying to free connections
Cause: An internal error occured while trying to free connections.
Action: Contact customer support.
ORA-24398: connection pool already exists
Cause: A connection pool has already been created for the specified pool handle.
Action: 1) Specify a different pool handle to create a new connection pool. 2) If you wish to modify the pool parameters, call OCIConnectionPoolCreate in OCI_CPOOL_REINITIALIZE mode.
ORA-24399: invalid number of connections specified
Cause: An invalid combination of minimum, maximum and increment number of connections was specified in the OCIConnectionPoolCreate call.
Action: Specify a valid combination of parameters.

ORA-24400: error occured while creating connections in the pool
Cause: The database link specified in OCIConnectionPoolCreate might be an invalid one.
Action: Specify a valid database link.
ORA-24401: cannot open further connections
Cause: Sufficient number of connections are not present in the pool to execute the call. No new connections can be opened as the connMax parameter supplied in OCIConnectionPoolCreate has been reached.
Action: Call OCIConnectionPoolCreate in OCI_CPOOL_REINITIALIZE mode and increase the value of the connMax parameter.
ORA-24402: error occured while creating connections in the pool
Cause: The username and password specified in OCIConnectionPoolCreate might be invalid.
Action: Specify a valid username and password.

ORA-24403: error occured while trying to destroy the connection pool
Cause: Some connections in the pool were busy when an attempt to destroy the connection pool was made.
Action: Ensure no connections from the pool are being used.
ORA-24404: connection pool does not exist
Cause: An attempt was made to use the connection pool before creating it.
Action: Create the connection pool.
ORA-24405: error occured while trying to create connections in the pool
Cause: An internal error occured while creating connections in the pool.
Action: Contact customer support.
ORA-24406: API mode switch is disallowed when a call is in progress.
Cause: A mode switch from OCI8 to OCI7 was attempted in a callback.
Action: The user should perform the API mode switch either prior to initiating the top call or after the main call is done.

Above are list of Oracle Database Errors or Warnings from Error ORA-24397 to ORA-24406 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.

Thanks,
SQLServerF1 Team
Information about Oracle Database Error Messages or Warning Messages on Windows and Linux Operating Systems.

 

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