sql 语句中where条件和join on条件的区别
与有很大的差别，请注意！
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SELECT TBL_SchemaDetail.MaterialNo, TBL_StockMaterial.SalePrice FROM TBL_StockMaterial RIGHT OUTER JOIN TBL_SchemaDetail ON TBL_StockMaterial.MaterialNo = TBL_SchemaDetail.MaterialNo AND TBL_SchemaDetail.SchemaNo = '7411' AND TBL_StockMaterial.SalePrice = 0 |
条件全部放到join的on中。
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SELECT TBL_SchemaDetail.MaterialNo, TBL_StockMaterial.SalePrice FROM TBL_StockMaterial RIGHT OUTER JOIN TBL_SchemaDetail ON TBL_StockMaterial.MaterialNo = TBL_SchemaDetail.MaterialNo WHERE (TBL_SchemaDetail.SchemaNo = '7411') AND (TBL_StockMaterial.SalePrice = 0) |
连接和条件分开。
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原文链接：http://www.cnblogs.com/cate/sqlserver/
