In this blog we will see how to switchover your Primary database to a Standby database and vice versa in a Oracle Dataguard Environment
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Let us take the Primary and Standby Databases as follows :
Primary DB : INFRA
Standby DB : INFRA_DG
STEPS :
INFRA :
1. Alter database commit to switchover to standby;
2. Shut immediate (If DB isnt shutdown automatically)
3. startup nomount
4. alter database mount standby database;
5. select name,open_mode,database_role from v$database;
INFRA_DG :
6. Alter database commit to switchover to primary;
7. shut immediate
8. startup
9. select name,open_mode,database_role from v$database;
INFRA :
10. Alter database recover managed standby database disconnect from session;