After Oracle Database Upgrade to 12.2, Database Express Did not work

I upgraded one database from 11.2.0.4 to 12.2.0.1 on one Solaris Sparc server. After that I configured the Enterprise Manager Database Express, but when I tried to access it, I got the following error: For more information about Oracle Enterprise Manager Database Express, please refer to my post:https://ahmedfattah.com/2018/10/14/oracle-enterprise-manager-database-express-12c-overview/ Environment: Oracle Solaris 11Oracle Restart 12.2.0.1Oracle Database … Continue reading After Oracle Database Upgrade to 12.2, Database Express Did not work

What is the difference between Oracle RAC One Node and Oracle RAC?

https://www.youtube.com/watch?v=ZM6ckWFlyeM ThanksAhmed

Oracle Database 32-bit Funny Migration to 64-bit

Objective: Migrating one 11.1.0.7 32-bit database that resides on an old Windows 2008 (32-bit) (4GB memory) to Windows 2008 64-bit (no upgrade) on a brand new server with 64GB memory. {At 2017 and still there is 11.1.0.7 database ==> yes there is!} Introduction and Background I have a client with the following very old environment: … Continue reading Oracle Database 32-bit Funny Migration to 64-bit

Oracle Database Upgrade to 12c (In a Fail Safe Environment)

This a step-by-step detailed procedure for upgrading one Oracle Database 11gR2 (11.2.0.4) on Windows Server 2012 to the latest version 12c (12.1.0.2) with the latest available Windows Bundle Patch. The database is configure with Fail Safe (Active/Passive) cluster to provide some sort of high availability. This is an actual live upgrade for one of my … Continue reading Oracle Database Upgrade to 12c (In a Fail Safe Environment)