ORA-12721: operation cannot execute when other sessions are active

Cause : Thisc ommadn cano nly eb runw hen htere rae noo thers essinos acitve

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

Ensuer theer aren o otehr connectinos tot he dtaabase

update : 24-07-2017
ORA-12721

ORA-12721 - operation cannot execute when other sessions are active
ORA-12721 - operation cannot execute when other sessions are active

  • ora-01908 : EXISTS keyword expected
  • ora-16766 : Redo Apply unexpectedly offline
  • ora-02465 : Inappropriate use of the HASH IS option
  • ora-12525 : TNS:listener has not received client's request in time allowed
  • ora-16742 : the standby database "string" has exhausted its quota
  • ora-02160 : index-organized table can not contain columns of type LONG
  • ora-15096 : lost disk write detected
  • ora-16719 : unable to query V$ARCHIVE_DEST fixed view
  • ora-01228 : SET DATABASE option required to install seed database
  • ora-02244 : invalid ALTER ROLLBACK SEGMENT option
  • ora-31622 : ORACLE server does not have string access to the specified file
  • ora-28164 : REVOKE already specified
  • ora-12806 : could not get background process to hold enqueue
  • ora-36684 : (XSDPART22) You cannot rename values of DIMENSION workspace object because it is the partition dimension of RANGE PARTITION TEMPLATE workspace object
  • ora-00712 : cannot rename system tablespace
  • ora-32844 : exceeded maximum number of string values
  • ora-27377 : windows cannot have event based schedules
  • ora-13352 : the coordinates do not describe a circle
  • ora-13372 : failure in modifying metadata for a table with spatial index
  • ora-16055 : FAL request rejected
  • ora-19611 : backup piece out of order. Expected string but found string
  • ora-25157 : Specified block size string is not valid
  • ora-02775 : Invalid request done signal
  • ora-16040 : standby destination archive log file is locked
  • ora-13062 : topology IDs do not match in the feature table and the topology
  • ora-10270 : Debug shared cursors
  • ora-06596 : unsupported LOB operation in RPC call
  • ora-13871 : Invalid instance name
  • ora-09919 : Unable to set label of dedicated server
  • ora-23612 : unable to find tablespace "string"
  • 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.