ORA-44203: timeout waiting for lock on cursor


Sometimes You can get “ORA-44203: timeout waiting for lock on cursor ” error.


Details of error are as follows.

ORA-44203: timeout waiting for lock on cursor
Cause: A timeout occured while waiting for a cursor to be compiled. This is usually caused by the SQL parse
requiring access to system resources which are locked by concurrently executing sessions.
Action: Investigate possible causes of resource contention. If neccessary, contact support for additional
information on how to diagnose this problem. /////////////////////////////////////////////////////////////////////////// Reserving 44301 – 44320 for DBMS_SERVICES errors ///////////////////////////////////////////////////////////////////////////



This error is related with the Bug 14615315 which was identified as a duplicate of Bug 13827380.

To solve this error, Apply patch for Bug 13827380.


Or Use one of following workarounds:

Disable the actions of bug 8580882 using a _fix_control parameter as follows.

alter session set "_fix_control" = '8580883:off';


Disable complex view merging as follows.

alter session set "_complex_view_merging"=false;





Do you want to learn Oracle Database for Beginners, then read the following articles.


About Mehmet Salih Deveci

I am Founder of SysDBASoft IT and IT Tutorial and Certified Expert about Oracle & SQL Server database, Goldengate, Exadata Machine, Oracle Database Appliance administrator with 10+years experience.I have OCA, OCP, OCE RAC Expert Certificates I have worked 100+ Banking, Insurance, Finance, Telco and etc. clients as a Consultant, Insource or Outsource.I have done 200+ Operations in this clients such as Exadata Installation & PoC & Migration & Upgrade, Oracle & SQL Server Database Upgrade, Oracle RAC Installation, SQL Server AlwaysOn Installation, Database Migration, Disaster Recovery, Backup Restore, Performance Tuning, Periodic Healthchecks.I have done 2000+ Table replication with Goldengate or SQL Server Replication tool for DWH Databases in many clients.If you need Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS Consultancy and Training you can send my email adress [email protected].-                                                                                                                                                                                                                                                 -Oracle DBA, SQL Server DBA, APPS DBA,  Exadata, Goldengate, EBS ve linux Danışmanlık ve Eğitim için  [email protected] a mail atabilirsiniz.

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