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Replicating data from SQL Server to Oracle

Our application currently uses MS SQL Server 6.5 database and we need to replicate this data into an Oracle9i system on a set schedule. Can this be easily completed?

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Probably the hardest part of your task is that the Oracle software is relatively new and the MS SQL Server software is relatively old. But you should be able to use ODBC drivers to access the SQL Server data. With those ODBC drivers, you can use Oracle's Heterogenous Services to access the non-Oracle data through an Oracle database link. This will let you pull the data into Oracle. With a bit of coding, you should be able to set up a job to perform this action on a consistent schedule.

Otherwise, you can dump the SQL Server data to comma-delimited files and load them into Oracle with SQL*Loader. This routine is probably too cumbersome for your needs.

This was first published in February 2004

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