update from 。。 mysql多个表更新

 

要更新t_industry_finance_instance的 time_id_字段，条件是和time表比较

 

 

update t_industry_finance_instance a,time b set a.time_id_ =b.id_   where a.year_=b.year_ and a.season_=b.season_ and a.month_ and b.month_;