create table #a(id int,nam varchar(20)) create table #b(id int,nam varchar(20))insert into #b select 1,'a' union select 1,'b' union select 2,'b' union select 2,'a' insert into #a select distinct * from #b select * from #a select * from #b drop table #a drop table #b
INSERT INTO tableB SELECT a.* FROM tableA as a LEFT JOIN tableB as b on a.ID = b.ID WHERE a.ID IS NULL
create table #t1(ID int) create table #t2(ID int)insert #t1 select 1 union all select 2 union all select 3insert #t2 select 4 union all select 2 union all select 6insert into #t2 select #t1.ID from #t1 where #t1.ID not in(select ID from #t2 where #t2.ID=#t1.ID)select * from #t2 drop table #t1 drop table #t2
insert into tab select * from tab1 where tab1.id not in(select id from tab)
两个字段相同的表,怎样把A表数据批量导入B表中,且自动跳过重复数据? 谢谢大家!!!insert into b select * from a where id not in (select id from b)
create table #b(id int,nam varchar(20))insert into #b select 1,'a'
union select 1,'b'
union select 2,'b'
union select 2,'a'
insert into #a select distinct * from #b
select * from #a
select * from #b
drop table #a
drop table #b
create table #t2(ID int)insert #t1 select 1
union all select 2
union all select 3insert #t2 select 4
union all select 2
union all select 6insert into #t2 select #t1.ID from #t1 where #t1.ID not in(select ID from #t2 where #t2.ID=#t1.ID)select * from #t2 drop table #t1
drop table #t2
insert into tab select * from tab1 where tab1.id not in(select id from tab)
谢谢大家!!!insert into b select * from a where id not in (select id from b)