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Downgrade 19c Grid to 12.2 in an Oracle RAC environment.
I have upgraded my 2 node RAC to 19.8 from 12.2 using GUI Method. But I want to create a blog post of upgrade using silent method. So, I...

Sudipta Bhaskar
Apr 28, 202111 min read
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Softwarepatch level different in RAC nodes after GI PSU apply
crsctl query crs softwarepatch showing different output in different nodes. [oracle@OEL7N1 ~]$ crsctl query crs softwarepatch Oracle...

Sudipta Bhaskar
Apr 27, 202112 min read
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Apr 21 PSU fails "oracle.opatch.opatchsdk.OPatchException: Re-link fails on target "install_srvm"
While applying 12.2 Apr 21 PSU (12.2.0.1.210420), it fails with "Failed during Patching: oracle.opatch.opatchsdk.OPatchException: Re-link...

Sudipta Bhaskar
Apr 26, 202123 min read
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Apr 21 12.2 GI PSU fails with "OPATCHAUTO-72141: Grid is installed only on a single node"
I have recently faced this issue. While patching my newly built 12.2 RAC in rolling mode using opatchauto, it fails with following error....

Sudipta Bhaskar
Apr 22, 20211 min read
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Create Amazon RDS PostgreSQL and Connect using psql and pgadmin
Login to Amazon AWS Console and Open Amazon RDS Section Follow the following steps to create a RDS PostgreSQL Database Click on Create...

Sudipta Bhaskar
Apr 14, 20211 min read
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Install PostgreSQL 13 using yum/dnf in redhat linux 8
This post will explain the installation process of PostgreSQL 13 in redhat linux 8 We are following the yum/dnf method of installation...

Sudipta Bhaskar
Apr 4, 20213 min read
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