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Oracle Streams
Chapter 5 -
Apply Process Configuration

Using add_subset_rules for Apply Creation

                  Trans     Trans   Apply  Trans Being     Trans
Apply Process     Received  Applied Errors     Applied   Ignored
----------------- --------- ------- ------ ----------- ---------
LN3_APPLY          60        60      0         0         0

Even though 60,000 records have been loaded at the source destination and v$streams_apply_coordinator shows the number of transactions applied as 60, only 24,032 records have been added at the destination because of the DML condition that has been specified.

select  (select count(*) from ny3.allinsured1) at_source,
(select count(*) from ny3.allinsured1@dnyoip20) at_dest  from dual
gives output ..

---------- ----------
     60000      24032

To show all the relevant information in a single glance, the show_apply_server.sql script has been developed.  A full listing of the script is in the code depot. It selects various columns from dictionary views such as:

  • v$streams_apply_server

  • v$streams_apply_reader

  • v$buffered_queues

  • v$buffered_subscribers and dba_apply

The output of the query is shown below:

The above text is an excerpt from:

Oracle Streams
High Speed Replication and Data Sharing

ISBN 0-9745993-5-2

by Madhu Tumma

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