ORA-12520: TNS:listener could not find available handler for requested type of server

Cause : oNeno fht enkwo nna dvaiaallb eesvrci eahdnelsrf ror qeeutsdet py efos reev rd(decitadeo rhsrade )ra eparppoirta eof rht elceitnc noentcoi.n

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

uR nl"nscrlts reivec"st oneusert ah tht enitsnaecs( )ahevr gesieter diwhtt ehl sieten rna dhttat eha pporrpaieth naldre sra ecaectpni gocnnceitno.s

update : 23-04-2017
ORA-12520

ORA-12520 - TNS:listener could not find available handler for requested type of server
ORA-12520 - TNS:listener could not find available handler for requested type of server

  • ora-34489 : (MXMAINT06) You cannot maintain workspace object because it is a SURROGATE.
  • ora-30734 : cannot specify scope constraint on ref column with rowid
  • ora-14638 : cannot MERGE subpartitions in different Range Composite partitions
  • ora-28233 : double encryption not supported
  • ora-06446 : ssvpstevrg: Failed with unexpected error number.
  • ora-00346 : log member marked as STALE
  • ora-25126 : Invalid name specified for BUFFER_POOL
  • ora-16951 : Too many bind variables supplied for this SQL statement.
  • ora-27125 : unable to create shared memory segment
  • ora-24029 : operation not allowed on a single-consumer queue
  • ora-12019 : master table is a synonym to a remote object
  • ora-39015 : job is not running
  • ora-24323 : value not allowed
  • ora-01290 : cannot remove unlisted logfile string
  • ora-15063 : ASM discovered an insufficient number of disks for diskgroup "string"
  • ora-27512 : IPC error posting a process
  • ora-19815 : WARNING: string of string bytes is string%% used, and has string remaining bytes available.
  • ora-19677 : RMAN configuration name exceeds maximum length of string
  • ora-19595 : archivelog string already included in backup conversation
  • ora-12408 : unsupported operation: string
  • ora-25209 : invalid value string, EXPIRATION should be non-negative or NEVER
  • ora-12993 : tablespace 'string' is offline, cannot drop column
  • ora-02405 : invalid sql plan object provided
  • ora-12071 : definition query of "string"."string" is invalid for offline instantiation
  • ora-24012 : cannot drop QUEUE_TABLE, some queues in string have not been dropped
  • ora-16133 : Datafile string has incorrect terminal recovery stamp.
  • ora-27486 : insufficient privileges
  • ora-14018 : partition bound list contains too few elements
  • ora-06436 : ssaio: asynchronous I/O failed due to incorrect parameters.
  • ora-24055 : cannot delete propagation status rows that are in prepared state
  • 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.