What is best method to retrieve data from two databases

I'm writing a report that needs data from two sql databases. Not the same brand. Grouping and sorting fields come from both databases, so I can't just read one and retrieve data from the other. It seems to me I have to extract data from each data base using crystal reports, merge the two files using crystal reports and feed the merged file into crystal reports. I've not found a simpler or better method in the Crystal Reports documentation. Is there documentation about doing this process on the web site or with crystal reports documentation? My method seems cumbersome so I'm wondering if there is a better method.

Jeffrey,
A cheap and effective solution, for a periodic transfer would be using XML.
If you have the DDL for all of the objects in the database, you can just duplicate it on whatever RDBMS engine you want, and then, extract the data, table per table into XML files from the target server, and then load the files into the target server.
Otherwise, if you are going to do this in an ongoing basis, then, use SAP Replication Server. The best asynchronous, real time, heterogeous replication solution in the industry, exploited with a great deal of success by many critical mission financial applications with global topologies and sub second latency.
My two cents.
I hope they help.
Regards,
Jean-Pierre

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