How to produce cross-expression data table (pivot table) Part 2 (PIVOT, UNPIVOT) in SQL
Before use SQL2000 meow when the table data to produce cross (Excel pivot table referred to), with the following meow way to deal with this
http://www.dotblogs.com.tw/topcat/archive/2008/04/14/2909.aspx
This can be used in the same way inside SQL 2005, but 2005 has added a more convenient and something that can be handled more concise. This thing is [PIVOT], the magic is, in addition to produce cross through PIVOT data tables, table data can also cross through UNPIVOT back to the original way (which for some helpful normalized data tables yo).
^_^
Related note Online Book SQL2005 has said very clearly, small meow direct link to the TechNet article, please refer to
http://technet.microsoft.com/zh-tw/library/ms177410.aspx
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Original: Large column how to generate cross-expression data table (pivot table) Part 2 (PIVOT, UNPIVOT) in SQL