Thanks Joachim,
The mirror only has to go from oracle to pgsql and the schema/tables never change. I'm going to take a look at dbmirror. Thanks for the advice.
Randall
Joachim Wieland wrote:
Hi Randall,
On Sun, Oct 31, 2004 at 11:25:46PM -0600, Randall Smith wrote:
1. Set up stored proc on oracle that records a INSERT, UPDATE, DELETE SQL action taken on a table into a log table.
2. Program reads the log table on oracle and issues the same SQL command on the postgres db. In the same transaction, postgres writes to a log showing the command has been executed.
3. The program will query the oracle log table on some frequency ~30 seconds.
It depends on what you're trying to achieve.
Your way might work if you only want to mirror oracle -> pgsql but not vice versa.
Furthermore you need to do manual maintenance on the pgsql side if you change your schema on the oracle side (create/drop/change tables, ...)
I've done something similar with MS SQL -> pgsql and perl some years ago. Shout if you're interested.
There's also dbmirror in contrib/ that works in a similar way.
Joachim
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