複製Microsoft SQL Server中不同數據庫的數據表

我正在編寫數據遷移的存儲過程。在那裏，我需要將表和其他數據庫的整個數據複製到當前數據庫的臨時表中。但是，數據庫名稱將作爲參數。然後我需要處理複製的數據。但是，我不知道如何使用動態數據庫名稱。複製Microsoft SQL Server中不同數據庫的數據表

CREATE PROCEDURE [dbo].[MGRT] 
    @DBName VARCHAR(50) 
AS 
BEGIN 
    SET NOCOUNT ON; 
    IF OBJECT_ID('tempdb..#TMPCH') IS NOT NULL    
     DROP TABLE #TMPCH;    
    SELECT * INTO #TMPCH FROM MDDX.dbo.CH ORDER BY MDate,Mtime    

DECLARE @count INT = 0    
DECLARE @curRow INT = 0    
SELECT @count = COUNT(*) FROM #TMPCH     

WHILE @curRow <= @count    
    BEGIN   
     DECLARE @lastDate NVARCHAR(10) = '-'   
     SET @lastDate = (SELECT TOP 1 To_Date FROM CH ORDER BY SysKey DESC)  

     IF @lastDate = '' OR @lastDate IS NULL  
      BEGIN 
       SET @lastDate = '-' 
       PRINT @lastDate 
      END 

     INSERT INTO CH(syskey,CurCode,CurDesc,CurSymbol,CurRate,From_Date,To_Date,userid,username)  
      (SELECT @curRow,CurCode,CurDesc,CurSymbol,CURRATE,@lastDate,MDate,'admin','Administrator' 
      FROM (SELECT *,ROW_NUMBER() OVER(ORDER BY MDate,MTime) AS rowNo FROM #TMPCH) AS TMP WHERE rowNo = @curRow) 
     SET @curRow = @curRow + 1  
    END   
END

我需要使用@DBName而不是MDDX來獲取數據。

謝謝！

來源

2014-11-04 Hein Minn Soe

您可以使用動態查詢。顯示你到目前爲止嘗試過的。 – Rahul 2014-11-04 07:56:13

這只是示例。實際上，我需要更多的計算。謝謝你！ – 2014-11-04 08:06:30

您將需要使用動態查詢，如下所示;

CREATE PROCEDURE [dbo].[MGRT] 
    @DBName VARCHAR(50) 
AS 
BEGIN 
    SET NOCOUNT ON; 
    DECLARE sSQL as varchar(200) 

    IF OBJECT_ID('tempdb..#TMPCH') IS NOT NULL    
     DROP TABLE #TMPCH;    

    sSQL = 'SELECT * INTO #TMPCH FROM @DBName.dbo.CH ORDER BY MDate,Mtime'    
    Exec (sSQL) 

DECLARE @count INT = 0    
DECLARE @curRow INT = 0    
SELECT @count = COUNT(*) FROM #TMPCH     

WHILE @curRow <= @count    
    BEGIN   
     DECLARE @lastDate NVARCHAR(10) = '-'   
     SET @lastDate = (SELECT TOP 1 To_Date FROM CH ORDER BY SysKey DESC)  

     IF @lastDate = '' OR @lastDate IS NULL  
      BEGIN 
       SET @lastDate = '-' 
       PRINT @lastDate 
      END 

     INSERT INTO CH(syskey,CurCode,CurDesc,CurSymbol,CurRate,From_Date,To_Date,userid,username)  
      (SELECT @curRow,CurCode,CurDesc,CurSymbol,CURRATE,@lastDate,MDate,'admin','Administrator' 
      FROM (SELECT *,ROW_NUMBER() OVER(ORDER BY MDate,MTime) AS rowNo FROM #TMPCH) AS TMP WHERE rowNo = @curRow) 
     SET @curRow = @curRow + 1  
    END   
END

來源

2014-11-04 10:11:27

複製Microsoft SQL Server中不同數據庫的數據表

回答

相關問題