oracle之數據處理

--創建表
create table emp3
as
select employee_id,last_name,hire_date,salary
from employees

--查詢表
select * from emp3

--插入表
insert into emp3
values(1001,'AA',sysdate,10000)

運行結果

插入對應三項

--空值用null代替
--複製表
insert into emp3(last_name,employee_id,hire_date)
select last_name,employee_id,hire_date
from employees where department_id=80

運行結果

--創建腳本
insert into emp3(last_name,employee_id,hire_date)
values('&name',&id,'&hire_date')

運行結果

--更新數據
update emp3
set salary=12000
where employee_id=179

運行結果

--更新114he1205工資一樣
update employees set job_id=(
select job_id from employees
where employee_id=205
),salary=(
select salary from employees where employee_id=205)
 where employee_id=114

運行結果