Visual Representation of SQL Joins

原文：http://www.codeproject.com/Articles/33052/Visual-Representation-of-SQL-Joins   从视图上介绍了7种不同类型的JOIN操作：

1. INNER JOIN
2. LEFT JOIN
3. RIGHT JOIN
4. OUTER JOIN
5. LEFT JOIN EXCLUDING INNER JOIN
6. RIGHT JOIN EXCLUDING INNER JOIN
7. OUTER JOIN EXCLUDING INNER JOIN

   

 

Visual Representation of SQL Joins

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