SELECT <SELECT LIST> FROM <the table you want to be the "LEFT" table> <LEFT|RIGHT> [OUTER] JOIN <table you want to be the "RIGHT" table> ON <join condition>SELECT <SELECT LIST> FROM <the table you want t
阅读背景：
SQL SERVER 2012 第四章 连接 JOIN の OUTER JOIN，完全连接FULL JOIN，交叉连接CROSS JOIN
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