Muhammad Nadeem Chaudhry's Blog


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

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