sql怎样过滤重复记录?答:declare @t table (ID int, Name varchar(10), address varchar(10))insert into @t select 1,'a','1'insert into @t select 2,'a','2'insert into @t select 3,'a','1'insert into @t select 4,'a','3'insert into @t select 5,'b','2'insert into @t select 6,'b'...