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Oracle Database 21c is the first Oracle database release with CDB-only architecture. Oracle 20c was announced only CDB architecture but it was not release for on premises. Only for Cloud. That's why i said Oracle 21c is first CDB-only release. Please find the step by step process to install it.
https://youtu.be/Yrqab1BfbcY
Many times, I got the question from my colleague or training participants, how to login MySQL if I forgot the password. I have explained the process in many times to them but thought to write this sce
While you are working on SQL*Plus and RMAN on Linux environment and you did some mistake and you want to edit your query it won’t work by default. There is way to configure it. The rlwrap (readline wr