sqlserver跨库操作数据

垮库只能读操作，写操作需要设置权限。

USE [jdddb]
GO
/****** Object:  StoredProcedure [dbo].[proc_LYOrderCancel]    Script Date: 02/07/2017 11:18:55 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:		赵伟
-- Create date: 20170122
-- Description:	疗养宝订单取消
-- =============================================
--EXEC proc_LYOrderCancel '15201701201037185748','xf0057',17,1,37125,141129,'2017-01-20',1,0
ALTER PROCEDURE [dbo].[proc_LYOrderCancel]
	(
		@orderSn VARCHAR(100),
		@userName NVARCHAR(100), --用户名称
		@orderType INT, --订单类型
		@status INT, --订单当前状态
		@jdid INT, --酒店ID
		@fjlxid INT, --房间ID
		@idate DATETIME, --预订时间
		@num INT ,  --入住天数，用于减房态
		@flag INT OUTPUT --返回标识
	)
AS
BEGIN
	SET NOCOUNT ON;
	BEGIN TRY
		IF EXISTS(SELECT srvname FROM MASTER.DBO.SYSSERVERS WHERE SrvName='172.18.105.63')
		BEGIN
			EXEC SP_DROPSERVER '172.18.105.63','DropLogins'
		END
		EXEC sp_addlinkedserver '172.18.105.63',N'SQL Server'
		EXEC sp_addlinkedsrvlogin '172.18.105.63', 'false', NULL, 'test', 'xinfuka'
		
		BEGIN TRANSACTION

		IF EXISTS(SELECT Id FROM [172.18.105.63].[Xinfu0816].[dbo].[Orders] WHERE OrderType=@orderType AND OrderSn=@orderSn AND UserName=@userName)
		BEGIN
			UPDATE [172.18.105.63].[Xinfu0816].[dbo].[Orders] SET [Status]=4 WHERE  OrderType=@orderType AND OrderSn=@orderSn AND UserName=@userName
		END
		
		IF EXISTS(SELECT 1 FROM dbo.JD_Orders WHERE orderType=@orderType AND OrderSn=@orderSn AND ydr=@userName)
		BEGIN
			UPDATE dbo.JD_Orders SET zt=4 WHERE  orderType=@orderType AND OrderSn=@orderSn AND ydr=@userName
		END
		
		IF(@status!=2)--待支付的不需要减房态
		BEGIN

			DECLARE @col VARCHAR(100);
			SET @col ='sl'+ CONVERT(varchar(100),DATEPART(DAY,@idate));
			IF EXISTS(SELECT id FROM dbo.JD_FT WHERE jdid=@jdid AND fjlxid=@fjlxid AND iyear=DATEPART(YEAR,@idate) AND imonth=DATEPART(MONTH,@idate))
			BEGIN
			DECLARE @sql VARCHAR(1000);
			SET @sql='UPDATE dbo.JD_FT SET '+@col+'='+@col+'-'+CONVERT(VARCHAR(10),@num)+' WHERE jdid='+CONVERT(VARCHAR(10),@jdid)+' AND fjlxid='+CONVERT(VARCHAR(10),@fjlxid)+' AND iyear='+CONVERT(VARCHAR(10),DATEPART(YEAR,@idate))+' AND imonth='+CONVERT(VARCHAR(10),DATEPART(MONTH,@idate))+''
			PRINT @sql;
			EXEC(@sql);
			--UPDATE dbo.JD_FT SET @col=@col-@num
			--WHERE jdid=@jdid AND fjlxid=@fjlxid AND iyear=DATEPART(YEAR,@idate) AND imonth=DATEPART(MONTH,@idate)
			END
		END

		SET @flag=1;
		COMMIT TRANSACTION
	END TRY
	BEGIN CATCH
		SET @flag=-1;
		ROLLBACK TRANSACTION
		/*定义要返回的异常信息变量*/
        DECLARE @ErrorMessage NVARCHAR(4000);
        DECLARE @ErrorSeverity INT;
        DECLARE @ErrorState INT;
        /*收集可能出现的异常信息*/
        SELECT 
        @ErrorMessage = ERROR_MESSAGE(),
        @ErrorSeverity = ERROR_SEVERITY(),
        @ErrorState = ERROR_STATE();
        /*抛出异常*/
        RAISERROR (@ErrorMessage,  -- Message text.
               @ErrorSeverity, -- Severity.
               @ErrorState     -- State.
               );
	END CATCH  
END