Question

尝试在SQL Server中使用MERGE语句并获得以下错误。不确定我在这里可以忽略的是什么。插入值和值计数相同。

INSERT语句中的列多于VALUES子句中指定的值。 VALUES子句中的值数必须与INSERT语句中指定的列数相匹配。

下面的声明

MERGE EHRCLSQL01.NOCAdmin.dbo.ViewOnlyTracking AS vot
USING 
   (SELECT 
       @Database AS [Database], 
       'Copy' AS Mode, 
       CASE WHEN @Passed = 0 THEN 'Failed' ELSE 'Success' END AS [Status], 
       @Duration AS Duration, 
       GETDATE() AS DateTimestamp, 
       GETDATE() AS LastSuccessDateTimestamp) AS s ON vot.[Database] = s.[Database]
                                                      AND vot.Mode = s.Mode
WHEN MATCHED THEN
   UPDATE 
      SET           
        vot.[Status] = s.[Status]
        , vot.Duration = s.Duration
        , vot.DateTimestamp = s.DateTimestamp
        , vot.LastSuccessDateTimestamp = s.LastSuccessDateTimestamp

WHEN NOT MATCHED THEN
    INSERT ([Database], [Mode], [Status], [Duration], [DateTimestamp], [LastSuccessDateTimestamp])
    VALUES (s.[Database], s.Mode, s.[Status], s.Duration, s.DateTimestamp, NULL);

更新：

修正了结束]。现在我得到以下

MERGE语句的目标不能是远程表，远程视图或远程表上的视图。

由于我使用目标服务器中的数据并尝试更新链接服务器，我该如何执行此操作？

Answer 1

您可以使用EXECUTE AT在远程服务器端进行合并声明。

将您的查询放在变量中，使用？作为参数的占位符然后执行。

这样的事情对你有用。

DECLARE @SQL NVARCHAR(MAX) = '
MERGE NOCAdmin.dbo.ViewOnlyTracking AS vot
    USING (SELECT ? AS [Database], ''Copy'' AS Mode, CASE WHEN ? = 0 THEN ''Failed'' ELSE ''Success'' END AS [Status], ? AS Duration, GETDATE() AS DateTimestamp, GETDATE() AS LastSuccessDateTimestamp) AS s
        ON vot.[Database] = s.[Database]
            AND vot.Mode = s.Mode
        WHEN MATCHED THEN
            UPDATE SET          
                vot.[Status] = s.[Status]
                , vot.Duration = s.Duration
                , vot.DateTimestamp = s.DateTimestamp
                , vot.LastSuccessDateTimestamp = s.LastSuccessDateTimestamp

        WHEN NOT MATCHED THEN
            INSERT ([Database], [Mode], [Status], [Duration], [DateTimestamp], [LastSuccessDateTimestamp])
            VALUES (s.[Database], s.Mode, s.[Status], s.Duration, s.DateTimestamp, NULL);';

EXEC (@SQL, @Database, @Passed, @Duration) AT EHRCLSQL01;

MERGE语句链接服务器

1 个答案: