Issue with Rowid's during Oracle to Postgres convertion: - Mailing list pgsql-general

From Bodanapu, Sravan
Subject Issue with Rowid's during Oracle to Postgres convertion:
Date
Msg-id D9C90B51B105D511A3FB00508BFD70E2046DB473@mnmtkex1.nextelpartners.com
Whole thread Raw
Responses Re: Issue with Rowid's during Oracle to Postgres convertion:  (Greg Stark <gsstark@mit.edu>)
List pgsql-general

Hi Gurus,

We have an Oracle 8i standby database and the archive logs were applied everyhour to keep the database in sync with production. Since the standby

database is read only, we dont have the flexibility to change and add additional functionality to meet our needs for reporting and reserach. Therefore,

we decided to maintain another database (postgres) and add functionality, modify schema/indexes so that we have full control over the database.

We, then started with importing the Oracle data into postgres and there were no Issues. The second stage is to apply the Oracle archive log information

to Postgres database using Oracle's Logminer utility. We were able to break the archive logs and extract sql's using Logminer but stuck with ROWID's

in the DML transactions. Postgres does not support Rowid's at all, but there is a concept called OID and it is not helpful to us. I wonder how to resolve

the issue with Rowid's in Sql statements that came out of Oracle Logminer. All I wanted is to use the sql's ( comming out of Logminer ) and apply them

to Postgres database so that the database is always current and in sync with the Oracle standby database, and simultaniously it is available to users

without downtime. Since oracle Rowid is dynamic, it is difficult to keep track of it. I believe there is an Issue with Oracle 8i Logminer in extracting the

DML transactions. It looks like some of them have already started maintaining the postgres database using the above mentioned method, but dont know how.

Can someone please advice us in this matter so that we can continue with our database migration.

- Sravan.

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