How to check data in physical standby database?

Question

Hi!
I'm maintaining physical standby database system. everyday, i must check tranfer and apply progress. I known, it operate very good. No archive gap is found.
But i want to check data in physical standby database that there is consistant with primary database, there isn't? What method do I use? How to do?
thankS

Answer 1

I hope the following will help
Verifying the Physical Standby Database
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Once you create the physical standby database and set up log transport services, you may want verify that database modifications are being successfully shipped from the primary database to the standby database.
To see the new archived redo logs that were received on the standby database, you should first identify the existing archived redo logs on the standby database, archive a few logs on the primary database, and then check the standby database again. The following steps show how to perform these tasks.
Step 1 Identify the existing archived redo logs.
On the standby database, query the V$ARCHIVED_LOG view to identify existing archived redo logs. For example:
SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME
2 FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
SEQUENCE# FIRST_TIME NEXT_TIME
8 11-JUL-02 17:50:45 11-JUL-02 17:50:53
9 11-JUL-02 17:50:53 11-JUL-02 17:50:58
10 11-JUL-02 17:50:58 11-JUL-02 17:51:03
3 rows selected.
Step 2 Archiving the current log.
On the primary database, archive the current log using the following SQL statement:
SQL> ALTER SYSTEM ARCHIVE LOG CURRENT;
Step 3 Verify that the new archived redo log was received.
On the standby database, query the V$ARCHIVED_LOG view to verify the redo log was received:
SQL> SELECT SEQUENCE#, FIRST_TIME, NEXT_TIME
2> FROM V$ARCHIVED_LOG ORDER BY SEQUENCE#;
SEQUENCE# FIRST_TIME NEXT_TIME
8 11-JUL-02 17:50:45 11-JUL-02 17:50:53
9 11-JUL-02 17:50:53 11-JUL-02 17:50:58
10 11-JUL-02 17:50:58 11-JUL-02 17:51:03
11 11-JUL-02 17:51:03 11-JUL-02 18:34:11
4 rows selected.
The logs are now available for log apply services to apply redo data to the standby database.
Step 4 Verify that the new archived redo log was applied.
On the standby database, query the V$ARCHIVED_LOG view to verify the archived redo log was applied.
SQL> SELECT SEQUENCE#,APPLIED FROM V$ARCHIVED_LOG
2 ORDER BY SEQUENCE#;
SEQUENCE# APP
8 YES
9 YES
10 YES
11 YES
4 rows selected.