跪求复杂SQL语句!!!
如何从A表中查出B表中按条件不存在的记录,然后在更根据上一步的查询结果往C表中INSERT同样数目的记录!!急用,求高手!!!
------解决方案--------------------insert into c 
 select a.* from a left join b on a.id=b.id where b.id is null     
 --假设a,b两表之间通过id关联
------解决方案--------------------declare @ta table(id int,name varchar(10)) 
 declare @tb table(id int,name varchar(10)) 
 declare @tc table(id int,name varchar(10)) 
 insert @ta 
 select 1, 'abc ' union all 
 select 2, 'efg ' union all 
 select 3, 'hij ' 
 insert @tb 
 select 1, 'x ' union all 
 select 4, 'y ' union all 
 select 5, 'z '   
 ----查看b表中不存在的记录 
 SELECT a.id,a.name FROM @ta as a  
 LEFT JOIN @tb as b on a.id = b.id  
 WHERE b.id is null   
 ----将b表中不存在的记录插入到c表中 
 INSERT @tc(id,name)  
 SELECT a.id,a.name FROM @ta as a  
 LEFT JOIN @tb as b on a.id = b.id  
 WHERE b.id is null   
 ----查看c表内容 
 select * from @tc   
 /*结果 
 id          name        
 ----------- ----------  
 2           efg 
 3           hij 
 */ 
------解决方案--------------------insert into c  
 select * from a 
 where not exists(select 1 from b where a.id=b.id)
------解决方案--------------------再问一下,管理-》作业 中可以执行存储过程吗?   
 job step里可以是sql语句或者执行存储过程 
 但具体执行时需要在job启动的时候执行