Sql Server：如何在WHERE子句中使用像MAX这样的聚合函数

发布时间：2020-12-12 16:20:08 所属栏目：MsSql教程来源：网络整理

导读：我想获得此记录的最大值.请帮帮我： SELECT rest.field1 FROM mastertable AS m INNER JOIN ( SELECT t1.field1 field1,t2.field2 FROM table1 AS T1 INNER JOIN table2 AS t2 ON t2.field = t1.field WHERE t1.field3=MAX(t1.field3) -- ^^^^^^^^^^^^^^ Help

我想获得此记录的最大值.请帮帮我：

SELECT rest.field1 
    FROM mastertable AS m
    INNER JOIN  (
        SELECT t1.field1 field1,t2.field2
            FROM table1 AS T1 
            INNER JOIN table2 AS t2 ON t2.field = t1.field 
            WHERE t1.field3=MAX(t1.field3)
        --                  ^^^^^^^^^^^^^^  Help me here.
    ) AS rest ON rest.field1 = m.field

解决方法

您可以使用子查询…

WHERE t1.field3 = (SELECT MAX(st1.field3) FROM table1 AS st1)

但是我实际上将它从where子句移到join语句中,作为AND子句的AND.

（编辑：李大同）

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