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                set @fname = 'FiledName'
                Select @fname from tableName              -- ´íÎó,²»»áÌáʾ´íÎ󣬵«½á¹ûΪ¹Ì¶¨ÖµFiledName,²¢·ÇËùÒª¡£
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                set @fname = 'FiledName' --ÉèÖÃ×Ö¶ÎÃû
 
                declare @s varchar(1000)
                set @s = 'select ' + @fname + ' from tableName'
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Declare @tabname varchar(200),@ip varchar(50),@user varchar(50),@password varchar(50),@sql varchar(1000),@filetxt varchar(200),@file varchar(50)
set @tabname='database.dbo.tb' --±íÃû
set @ip='127.0.0.1'  --IPµØÖ·£¬±¾»úµÄ»°¾Íд127.0.0.1
set @user='sa' ......
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