Oracle多表关联update字段值

1、sql更新:

UPDATE NUM_ACTIVE_INTEGRAL_ a SET    
status_=0    
WHERE EXISTS(   
      --条件为:已处理的主表记录中,有明细记录,并且明细记录的状态值为7或者为null,而且主表记录的创建时间在指定范围内   
      SELECT 1 FROM NUM_ACTIVE_INTEGRAL_DET_ b    
      WHERE b.info_id_=a.id_    
           AND a.status_=999   
      AND a.create_date_>=20080601 AND a.create_date_<20080701   
      AND (b.status_=7 OR b.status_ IS NULL)   
)

 

update code2  set name=(select name from code1 where code1.code=code2.code)

 

 

2、 视图更新

update (select code1.name n1,code2.name n2 from code1 c1,code2 c2 where c1.code=c2.code)  set n2=n1

  

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