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Special Edition Using® Crystal Reports® 10 by Roger Sanborn, Steve Lucas, Kathryn Hunt, Joe Estes, Michael Voloshko, James Edkins, Bob Coates, Naisan Geula, Ryan Marples, Neil FitzGerald

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The Multi-Pass Reporting Process of the Crystal Reports Engine

Despite all the Crystal Reports functionality covered, to this point, it would be understandable if you assumed that the Crystal Reports reporting engine provides all this power with a single pass through the data it retrieves from the database. This would be a faulty assumption—Crystal Reports actually uses a three-pass reporting methodology to generate reports. Understanding the multi-pass nature of the reporting engine can facilitate effective report design and expedite the debugging of potential reporting challenges. Figure 4.25 from the Crystal Reports online Help file provides a good starting point for understanding the different passes through the data that Crystal Reports ...

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