create function fmerg(@nid int ) returns varchar(500) as begin declare @str varchar(500) declare @strsql varchar(500) declare @str1 varchar(10) set @str1=Char(39)+','+Char(39) set @strsql='insert into tb values('+Char(39) set @str='' select @str=@str+pid+@str1+id from Uni_A where id =@nid