摘要:
创建视图create Or Replace view t as select T1.t11 f1 ,T1.t12 f2 ,T2.t22 f3 from T1,T2 Where T1.t11=T2.t11; 视图更新Create Or Replace Trigger Trg_InsUpdDel_t Instead Of Insert or update or delete on t for each row Declare begin If Inserting Then Insert Into t1 (t11,t12) Valu... 阅读全文