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QUERY DATAGUARD AND STANDBY STATUS

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SQL to find the SQL,SID , long running , CPU, I/O

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Oracle Standby database

Shutting Down a Physical Standby Database Issue the following query to find out if the standby database is performing Redo Apply or real-time apply.  If the MRP0 or MRP process exists, then the standby database is applying redo. SQL> SELECT PROCESS, STATUS FROM V$MANAGED_STANDBY; If Redo Apply is running, cancel it as shown in the following example: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL; Shut down the standby database. SQL> SHUTDOWN IMMEDIATE; Start and mount the physical standby database: SQL> STARTUP MOUNT; Start Redo Apply or real-time apply: To start Redo Apply, issue the following statement: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE  DISCONNECT FROM SESSION; To start real-time apply, issue the following statement: SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE  USING CURRENT LOGFILE; ALTER SESSION SET nls_date_format=’DD-MON-YYYY HH24:MI:SS’; select ...
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