SQLwhere条件和jion　on条件的详解及区别

来源：动视网责编：小采时间：2020-11-09 07:00:53

SQLwhere条件和jion　on条件的详解及区别

SQLwhere条件和jion　on条件的详解及区别:sql 语句中where条件和jion on条件的区别与有很大的差别，请注意！ SELECT TBL_SchemaDetail.MaterialNo, TBL_StockMaterial.SalePrice FROM TBL_StockMaterial RIGHT OUTER JOIN TBL_SchemaDetail O

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导读SQLwhere条件和jion　on条件的详解及区别:sql 语句中where条件和jion on条件的区别与有很大的差别，请注意！ SELECT TBL_SchemaDetail.MaterialNo, TBL_StockMaterial.SalePrice FROM TBL_StockMaterial RIGHT OUTER JOIN TBL_SchemaDetail O

sql 语句中where条件和jion　on条件的区别

与有很大的差别，请注意！

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。

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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