oracle之數據處理之視圖

--創建視圖
create view empview
as
select employee_id,last_name,salary
from employees
where department_id=80;

--查詢視圖
select * from empview

--修改視圖
update empview set salary=20000
where employee_id=179

運行結果

--修改視圖
create or replace view empview2
as
select employee_id,last_name,salary,department_name
from employees e,departments d
where e.department_id=d.department_id

--刪除視圖
drop view empview2

公司工資前10