Muhammad Nadeem Chaudhry's Blog


Oracle Enterprise Manager 13c Release 3 Cloud Control Installation (Without Using DB Repository Assistant)

Posted in Uncategorized by Muhammad Nadeem Chaudhry on January 10, 2019

Oracle 18c Data Guard

Posted in Uncategorized by Muhammad Nadeem Chaudhry on January 1, 2019

A) Installation
– DB name should be same.
– Instance name (oralce unique name) should be different.
– A failover renders the original primary database useless for converting to a standby database. If flashback database is not enabled, the original primary must be scrapped and recreated as a standby database.
https://oracle-base.com/articles/18c/oracle-db-18c-installation-on-oracle-linux-6-and-7

B) Application Connectivity

- Create database service using DBMS_SERVICE.CREATE_SERVICE package.
- Create entry in tnsnames.ora only for created service for addresses of hosts(s).

C) Concepts
https://www.youtube.com/watch?v=xgDALsnbl9k