Oracle Restart Install Failures on RHEL8
19.6 or 19.7 DB software could be installed in either RHEL8 or OEL8. There is a dedicated MOS doc on this (2668780.1). However, there's no such document exists for Oracle Restart. Following GI and DB...
View ArticlePoint-in-Time Recovery of Tables
Oracle allows point in time recovery of tables from backup. In high-level the recover table command creates an auxiliary instance (and the PDB) and export the table(s) to a dump file or import into the...
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ATP Auto Indexing
ATP DB has the ability to automatically create indexes based on the improvment those indexes would bring to the query execution. This post explore the usage of this feature. By default auto indexing is...
View ArticleInitiating Switchover on a Physical Standby
It seems the best instance to intiaiate the switchover changes based on whether data guard broker is used or not. Oracle documentation states when performing switchover using SQL, the switchover...
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Upgrading Oracle Restart from 19c to 21c on RHEL 7
This post shows the steps for upgrading the grid infrastructure portion of 19c Oracle Restart to 21c.1. The current Oracle restart configuration is as below.Resource Name Type Target State...
View ArticleThe controlfile sequence# has now reached architectural limit
A test database (an out of support 11.2.0.4) running in noarchive log mode had the following message on the alert log.*************************************************************************ATTENTION:...
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Far Sync Targets are not Discovered Correctly by OEM Auto Discovery Process
If there are far sync instances in a data guard configuration then those will not be correctly identified as far sync instances by the OEM target discovery process. There were two posts related to the...
View ArticleActive Data Guard instances are not supported with DBMS_ROLLING
There is an earlier post on how to use dbms_rolling for database upgrade. The configuration used in that post consists of two instances. The data guard configuration this post is based on had three...
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Unplug-Plug-Upgrade from 19c to 21c Using Autoupgrade
This post shows the steps for upgrading a 19c PDB with autoupgrade tool using the unplug-plug-uprade method. The 21c CDB is called cdb21c and 19c CDB is called testcdb. The PDB that will be unpluged...
View ArticleOut of Place (OOP) Patching of Oracle Restart
Oracle grid infrastructure deployed in a RAC configuration has the option switchGridHome for out of place patching. But this option doesn't work with Oracle restart../gridSetup.sh -silent...
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Upgrade from 19c to 21c Using Autoupgrade
This post shows the steps for upgrading a 19c database (CDB + PDB) with autoupgrade tool. There's an earlier post which shows upgrading PDB form 19c to 21 using unplug-plug-upgrade method. If any...
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Upgrading 11.2.0.4 to 19c Using AutoUpgrade
There is an earlier post which shows how to upgrade 11.2 Oracle restart to 19c. However, in that post the database was upgraded using DBUA and left as a non-CDB. Autoupgrade (AU) could also be used to...
View ArticleOut of Place (OOP) Patching of Oracle Restart 21c
Previous post showed OOP for 19c Oracle restart. Things are much simpler in 21c and can expect the same for 23c once released. The -switchGridHome option is supported for Oracle Restart in 21c (Oracle...
View ArticleRestore Standby Database from Standby Backups
This post shows the steps for full restoring (controlfile + data files) for a standby database using standby database backups. The same could be achieved using restore from service (2283978.1)....
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