Question

我是一名新手SQL学习者并试图像之前一样做一个更新语句

UPDATE STG
SET STG.COL1 = SUB.COL1
SET STG.COL2 = SUB.COL2
FROM TABLE AS STG
INNER JOIN (SELECT ID, MIN([DATE]) AS COL1, MAX([DATE]) AS COL2
            FROM TABLE
            GROUP BY ID) AS SUB ON STG.ID = SUB.ID

但我收到了这些错误：

Msg 170，Level 15，State 1，Line 4
  第4行：'。'附近的语法不正确。

Msg 156，Level 15，State 1，Line 10
  关键字“AS”附近的语法不正确。

我正在使用

Microsoft SQL Server  2000 - 8.00.2066 (Intel X86) 
May 11 2012 18:41:14 
Copyright (c) 1988-2003 Microsoft Corporation
Enterprise Edition on Windows NT 5.2 (Build 3790: Service Pack 2)

Answer 1

试试这个

 UPDATE STG
    SET STG.COL1 = SUB.COL1,STG.COL2 = SUB.COL2
    FROM TABLE  STG
    INNER JOIN (SELECT ID
    ,MIN([DATE]) AS COL1
    ,MAX([DATE]) AS COL2
    FROM TABLE
    GROUP BY ID 
    ) As SUB
    ON STG.ID = SUB.ID

使用子查询在SQL中更新

1 个答案: