Data Guard

Check Data Guard Parameters

Find out Instance is Primary or Standby

Remove Data Guard Broker Configuration Safely

Recover after a failed switchover

Create Broker Configuration

Shutdown Standby Database for maintenance work

Create Physical Standby database from Primary database using RMAN

Change SYS  password in Data Guard environment

How to check primary database synch with Standby or not

How to Remove One Standby Database from a Data Guard Configuration

How To Convert a Standby database to a Standalone Database After removing it from Data guard environment

Data Guard Related Error:

ORA-12514: TNS:listener does not currently know of service requested in connect descriptor (DGMGRL)

ORA-16057 DGID from server not in Data Guard configuration

ORA-16139: media recovery required

ORA-16826: apply service state is inconsistent with the DelayMins property

ORA-16766: Redo Apply is stopped (Error From Dataguard Broker)

ORA-16014: log X sequence# XXX not archived, no available destinations (In Standby Database)