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Separate database for each client in Oracle 10g

Brian Peasland EXPERT RESPONSE FROM: Brian Peasland

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QUESTION POSED ON: 23 May 2007
We need to create a data warehouse in Oracle 10g. The idea is to create a separate database for each client. The source databases are Sybase databases residing on different database servers. In Sybase we have a concept of separate databases per database server. I need to adapt the same concept in Oracle 10g. Is there some way by which I can do this? The OS will be either Linux or Unix. If I create a single database with multiple tablespaces for each client, will that be efficient as far as performance, tuning and maintenance is concerned? What would you suggest? Thanks.

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EXPERT RESPONSE
In Sybase or SQL Server, you have a concept of a "database." However, Oracle uses that term differently. Oracle's term which most correctly matches Sybase's "database" is the "schema." In Oracle, you'll create a schema by creating a user. That schema will hold all of the objects you would normally put into a Sybase database.


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