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Backup Controlfile to Trace
How to backup the Oracle Control File? There are two approaches: you either generate a binary image of the Control File, or you generate a text file script which will re-generate a Control File when...
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Oracle Database HA Architecture
By Uwe Hesse Link to original post: http://uhesse.wordpress.com/oracle-database-ha-architecture/ A very popular topic in many of my courses is Oracle Database Architecture regarding High Availability...
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I've lost an archived/online REDO LOG file, can I get my DB back?
The following INIT.ORA/SPFILE parameter can be used if your current redologs are corrupted or blown away. It may also be handy if you do database recovery and one of the archived log files are missing...
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A Ballad For a DBA
Dedicated to Gwen Shapira It’s a tale of woe and malice, a tale of a DBA That the users learned to fear and to get out of his way He would drop production tables when complaints had grown to loud He...
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Restore ControlFile with RMAN / Without RMAN
Restoring a controlfile without rman _____________________________________ suppose you lost a controlfile say control01.ctl. The controlfile got deleted but you have the controlfile control02.ctl...
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Block Media Recovery using RMAN ( Oracle 10g)
ORA-01578: ORACLE data block corrupted (file # 19, block # 461509) ORA-01110: data file 19: ‘E:\ORACLE\ORADATA\PLACID\CARA_NS.ORA’ You are getting the above error in Application. This means a block has...
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RMAN Point-In-Time Recovery
RMAN Point-In-Time Recovery Example There are many ways to restore a database using an RMAN backup – this example assumes you are running RMAN without a Catalog and are performing a Restore &...
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Flashback Table to Timestamp 11gR2
Flashback Technology provided by Oracle is one of the most useful in a production environment. It is a life saver. You can even rollback a query to a point in time without requiring traditional...
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Guaranteed Restore Points Oracle 11g
Guaranteed Restore Points are a life-saver when it comes to Application changes.It can ensure that you can rewind the database to a time without tradional point in time recovery. Guaranteed restore...
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RMAN — ORA-19909: datafile 1 belongs to an orphan incarnation in a Standby...
We had an interesting scenario where we did a full rman refresh of a standby database becuase the archivelogs went missing and there was a gap. After doing the restore we got the below error in the...
View ArticleEnable Flashback Database Oracle 10g
SQL> select * from v$flashback_database_log; SQL> show parameter db_file SQL> alter system set DB_RECOVERY_FILE_DEST_SIZE=2g; System altered. SQL> alter system set...
View ArticleRMAN-06059: expected archived log not found. ORA-19625:
Whenever you are trying to backup Archivelogs from RMAN you might get the following error. Starting backup at 25-FEB-10 current log archived archived log /u2/archivelogs/1_12241_642439782.dbf not found...
View ArticleFlashback Table to Timestamp 11gR2
Flashback Technology provided by Oracle is one of the most useful in a production environment. It is a life saver. You can even rollback a query to a point in time without requiring traditional...
View ArticleGuaranteed Restore Points Oracle 11g
Guaranteed Restore Points are a life-saver when it comes to Application changes.It can ensure that you can rewind the database to a time without tradional point in time recovery. Guaranteed restore...
View ArticleRMAN — ORA-19909: datafile 1 belongs to an orphan incarnation in a Standby...
We had an interesting scenario where we did a full rman refresh of a standby database becuase the archivelogs went missing and there was a gap. After doing the restore we got the below error in the...
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