合并多列

Question

我正在尝试使用merge从链接服务器插入记录。该表只有两列，都需要使用这两列来检查新记录。

MERGE dbo.[TableA] AS Target
USING (SELECT [PERMNUM], [ABS_DATE]
    FROM [Linked Server].[dbo].[TableA]) 
            AS source ([PERMNUM], [ABS_DATE]
    ON (Target.[PERMNUM] = source.[PERMNUM] 
        AND Target.[ABS_DATE] = source.[ABS_DATE])
    WHEN NOT MATCHED THEN
        INSERT ([PERMNUM], [ABS_DATE])
        VALUES (source.[PERMNUM], source.[ABS_DATE]);

我收到以下错误。

Msg 156, Level 15, State 1, Line 6
Incorrect syntax near the keyword 'ON'.

如何在ON子句中使用这两列？我看过其他示例，据我所知我是正确的。

Answer 1

好吧，好像我缺少一个'）'

我修复了代码，现在它是正确的：

SET NOCOUNT ON
MERGE dbo.[PSPI_DAY_ABSENCES] AS Target
USING (SELECT [PERMNUM], [ABS_DATE]
    FROM [SQLPASS01].[PSPI].[dbo].[PSPI_DAY_ABSENCES]) 
            AS source ([PERMNUM], [ABS_DATE])
    ON Target.[PERMNUM] = source.[PERMNUM] AND Target.[ABS_DATE] = source.[ABS_DATE]
    WHEN NOT MATCHED THEN
        INSERT ([PERMNUM], [ABS_DATE])
        VALUES (source.[PERMNUM], source.[ABS_DATE]);