What is the cause of the error ORA-00054 “resource busy and acquire with NOWAIT specified or timeout expired”?
Solved – Why was ORA-12537: TNS:connection closed, error returned?
When trying to establish a sqlplus connection I get the “ORA-12537: TNS:connection closed” error messgae. How do I resolve this?
How to Clean Up GoldenGate Integrated Extract if the Delete Extract fails?
If the extract process was not un-registered from the database then Cleaning Up GoldenGate Integrated Extract Using DBMS_CAPTURE_ADM.DROP_CAPTURE will be necessary.
ORA-01110 data file %s
What is the cause of the error “ORA-01110 data file %s”? How do I resolve this?
ORA-00918 column ambiguously defined
What is the cause of the “ORA-00918 column ambiguously defined” error? How do I resolve this?
Generate Multiple AWR Reports Quickly
Occasionally there is a need to generate multiple AWR reports for database analysis. In my case, a storage vendor will use a tool to extract data from all time periods from the AWR reports to find IO related specific information. Here is how I generated these reports.
How to solve “ORA-03135 connection lost contact” error?
Users are connected to the database via TNS and abruptly get disconnected. What is the cause of the “ORA-03135 connection lost contact” error? How can this be avoided?
ORA-02010 missing host connect string
What is the cause of the error “ORA-02010 missing host connect string”? How do I resolve this?
How to Use GoldenGate Token with COLMAP?
Tokens are used to capture and store the environment variable values in the header of the GoldenGate trail record file. The trail file header contains a lot of information about the physical environment that produced the trail file and trail file contents. We can use this information to map token data to a target column […]
Relocating OCR File and Voting Disk to new Diskgroup
Are you moving you OCR and Voting disks from one storage to another? Read the step-by-step instructions on how to to move these files to a different diskgroup.
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