Common table expressions (CTEs) are a handy alternative to using derived tables and views in SQL Server 2005 for retrieving data. There's no need to repeat complex code because CTEs separate code into unique units and they're self-referencing within your query. Here's a CTE how-to with examples, including details for one of its most valuable uses – creating a recursive query.
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Simplify queries with SQL Server 2005 common table expressions (CTEs)
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