ORA-12624: TNS:connection is already registered

Cause : An attempt to register a connection for event notification failed because the connection is already registered.

Action - How to fix it : DBA Scripts :: www.high-oracle.com/scripts

Not normally visible to the user. For further details, turn on tracing and reexecute the operation and contact Oracle Customer Support.

update : 22-06-2017

ORA-12624 - TNS:connection is already registered
ORA-12624 - TNS:connection is already registered

  • ora-38764 : flashback not started; datafile string enabled threads are different
  • ora-12592 : TNS:bad packet
  • ora-28169 : unsupported certificate type
  • ora-01193 : file string is not the same file seen at start of recovery
  • ora-29880 : such column list already indexed using another domain index and indextype
  • ora-09354 : Windows 32-bit Two-Task driver: ORACLE task unexpectedly died
  • ora-30929 : ORDER SIBLINGS BY clause not allowed here
  • ora-06931 : CMX: error during read_properties for server
  • ora-26710 : incompatible version marker encountered during Capture
  • ora-12569 : TNS:packet checksum failure
  • ora-31000 : Resource 'string' is not an XDB schema document
  • ora-25287 : Invalid value string, string should be non-negative
  • ora-36884 : (XSSRF03) The value of the first parameter of the AW single row function is incorrect.
  • ora-02065 : illegal option for ALTER SYSTEM
  • ora-39960 : scope can only be SYSTEM or SESSION
  • ora-16709 : standby archived log location settings conflict with flash recovery area
  • ora-39062 : error creating master process string
  • ora-07440 : WMON process terminated with error
  • ora-26048 : Scoped REF column has wrong table name.
  • ora-27371 : jobs of type EXECUTABLE are not supported on this platform
  • ora-23476 : cannot import from string to string
  • ora-37042 : (XSACQUIRE_DEP_DEADLOCK) Cannot wait to acquire composite, concat, dimension map, or internal partition workspace object since doing so would cause a deadlock.
  • ora-12570 : TNS:packet reader failure
  • ora-10668 : Inject Evil Identifiers
  • ora-04095 : trigger 'string' already exists on another table, cannot replace it
  • ora-14183 : TABLESPACE DEFAULT can be specified only for Composite LOCAL index
  • ora-30932 : Reference node 'string' not contained in specified parent node 'string'
  • ora-09843 : soacon: Archmon unable to create named pipe.
  • ora-27153 : wait operation failed
  • ora-16593 : XML conversion failed
  • Oracle Database Error Messages

    Oracle Database High Availability Any organization evaluating a database solution for enterprise data must also evaluate the High Availability (HA) capabilities of the database. Data is one of the most critical business assets of an organization. If this data is not available and/or not protected, companies may stand to lose millions of dollars in business downtime as well as negative publicity. Building a highly available data infrastructure is critical to the success of all organizations in today's fast moving economy.

    Well, the reason for above error is that i have taken the above script from a 11g database and running it on 10g database. 11g has bring some changes in password management. Below code is executed on 11g and user created successfully, which is expected result.