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Category: Oracle DBA

ORA-27211: Failed to load Media Management Library

June 17, 2015 Santosh Tiwary

RMAN backup failed With below error: RMAN-00571: ===========================================================RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============RMAN-00571: ===========================================================RMAN-03009: failure of allocate command on…

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Posted in: Oracle DBA, RMAN

Resolving ORA-19588: archived log recid stamp is no longer valid

May 22, 2015 Santosh Tiwary

ORA-19588: archived log recid 14859 stamp 747949646 is no longer valid channel dev_0: starting archive log backupsetreleased channel: dev_0RMAN-00571: ===============================================RMAN-00569:…

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Posted in: Oracle DBA, RMAN

Top 10 Ways to Get Current Date and Time in Oracle DB

May 18, 2015 Santosh Tiwary

Oracle sysdate function is used to check Oracle dates and time in the database. TO_CHAR function is used to convert…

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Posted in: Oracle DBA

How to Kill All Sessions of a Specific User in Oracle

April 24, 2015 Santosh Tiwary

Sometime you need to Kill Oracle Session to avoid any performance issues. There are chances that some session cause blocking…

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Posted in: Oracle DBA, Oracle Script

ORA-00245: Control File Backup Failed; Target is Likely on a Local File System

April 23, 2015 Santosh Tiwary

In alert log I got an issue ORA-00245: control file backup failed; target is likely on a local file system.…

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Posted in: Oracle DBA, RAC, RMAN

Terminating Sessions: Find Blocking Locks in Oracle

April 22, 2015 Santosh Tiwary 2 Comments

Oracle Blocking Sessions occur when one sessions holds an exclusive lock on an object and doesn’t release it before another…

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Posted in: Oracle DBA

HTTP Listener Failed at Startup Possible Port Conflict on Port

March 17, 2015 Santosh Tiwary

Few days back I got an alert: Agent is Not Running. Possible port conflict on port(3872): Retrying the operation. Failed to start…

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Posted in: Oracle DBA

ORA-3136: Inbound Connection Timed Out

March 7, 2015 Santosh Tiwary

Few days back we get an issue Inbound connection timed out (ORA-3136) in alert log. To troubleshoot this we need…

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Posted in: Oracle DBA

ORA-01950: no privileges on tablespace users in Oracle

Santosh Tiwary

Few days back, an error was reported in the alert log which was due to no privileges on tablespace for…

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Posted in: Oracle DBA

How to Find Out the size of your Oracle Database

December 24, 2014 Santosh Tiwary 5 Comments

Oracle database Size depends on the volume of data stored on disk or ASM. You can check size of Oracle…

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Posted in: Oracle DBA, Oracle Script

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