ORA-12521: TNS:listener does not currently know of instance
requested in connect descriptor



ORA-12521: TNS:listener does not currently know of instance requested in connect descriptor..

Answer / guest

Cause: The listener received a request to establish a
connection to a database or other service. The connect
descriptor received by the listener specified in addition to
the service name an instance name for an instance (usually a
database instance) that either has not yet dynamically
registered with the listener or has not been statically
configured for the listener. This may be a temporary
condition such as after the listener has started, but before
the database instance has registered with the listener.

Is This Answer Correct ?    3 Yes 0 No

Post New Answer

More Oracle Errors Interview Questions

DRG-11814: See Other

1 Answers  


ORA-14134: indexes cannot use both DESC and REVERSE

1 Answers  


ORA-13454: GeoRaster metadata is invalid

1 Answers  


ORA-25198: only range, list, and hash partitioning are supported for index-organized table

1 Answers  


ORA-06532: Subscript outside of limit

1 Answers  






ORA-38491: could not evaluate subexpression for rowid "string"

1 Answers  


QSM-02001: clustered mv container table

1 Answers  


ORA-04008: START WITH cannot be more than MAXVALUE

1 Answers  


ORA-25405: transaction status unknown

1 Answers  


ORA-13387: sdo_batch_size for array inserts should be in the range [number,number]

1 Answers  


ORA-16029: cannot change LOG_ARCHIVE_MIN_SUCCEED_DEST, no archive log destinations

1 Answers  


PROC-00023: Error in cluster services layer

1 Answers  


Categories