本文给大家分享一个远程更新目标库数据的存储过程，适用于更新列名一致，主键为Int类型，可远程链接的数据库。
-- Create date: <2018-05-04>
-- Description: <分批更新远程数据,仅支持主键为int表>
-- =============================================
CREATE PROCEDURE [dbo].[proc_DataUpdate]
@TargetInstance nvarchar(max),@TargetDBName nvarchar(max),@TargetUID nvarchar(max),@TargetPWD nvarchar(max),@LocalDBName nvarchar(max),@PK_ID nvarchar(max),--主键列(必须为数字)
@Column nvarchar(max),--更新列名集合
@ExecSize int--每次执行数量
AS
declare @sql nvarchar(max),@NumMax int=0,@NumMin int=0,@MaxID int
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
-- SET NOCOUNT ON;--打开注释可不显示执行过程，提高速度
begin try
--取最大值
set @sql = 'select @MaxID=MAX('+@PK_ID+') from '+@LocalDBName;
exec sp_executesql @sql,N'@MaxID int out',@MaxID out
--循环
while(@NumMax<@MaxID)
begin
if exists (select * from tempdb.dbo.sysobjects where id = object_id(N'tempdb..##tmp_table') and type='U')
drop table ##tmp_table;
SET @sql = 'select top '+cast(@ExecSize as nvarchar(1000))+' '+ @Column +' into ##tmp_table from '+@LocalDBName+' where '+@PK_ID+'>'+cast(@NumMax as nvarchar(150));
exec sp_executesql @sql;
--记录执行最大值
SET @SQL='select @NumMax=MAX('+@PK_ID+') from ##tmp_table';
exec sp_executesql @sql,N'@NumMax int out',@NumMax out;
--记录执行最小值
SET @SQL='select @NumMin=MIN('+@PK_ID+') from ##tmp_table';
exec sp_executesql @sql,N'@NumMin int out',@NumMin out;
SET @sql='delete openrowset(''SQLOLEDB'','''+@TargetInstance+''';'''+@TargetUID+''';'''+@TargetPWD+''',['+@TargetDBName+'].[dbo].['+@LocalDBName+'])
where '+@PK_ID+' between '+cast(@NumMin as nvarchar(200))+' and '+cast(@NumMax as nvarchar(200));
exec sp_executesql @sql;
SET @sql='insert into openrowset(''SQLOLEDB'',['+@TargetDBName+'].[dbo].['+@LocalDBName+'])
('+@Column+')
select '+ @Column +' from ##tmp_table'
exec sp_executesql @sql;
end
--删除多余数据
SET @sql='delete openrowset(''SQLOLEDB'',['+@TargetDBName+'].[dbo].['+@LocalDBName+'])
where '+@PK_ID+' >'+cast(@NumMax as nvarchar(200));
drop table ##tmp_table;
print 'Success';
end try
begin catch
select Error_number() as ErrorNumber,--错误代码
Error_severity() as ErrorSeverity,--错误严重级别，级别小于10 try catch 捕获不到
Error_state() as ErrorState,--错误状态码
Error_Procedure() as ErrorProcedure,--出现错误的存储过程或触发器的名称。
Error_line() as ErrorLine,--发生错误的行号
Error_message() as ErrorMessage --错误的具体信息
drop table ##tmp_table;
end catch
END
执行存储过程
总结
以上所述是小编给大家介绍的SQL Server 远程更新目标表数据的存储过程，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对编程之家网站的支持！