|
--复制表格的结构
create table temp as (select * from emp where 1=2);
select * from temp;
--删除表
drop table temp; |
| 插入 |
|
--1.插入 新增
insert into temp(empno, ename, job, hiredate, sal) values(1234, ‘test张三‘, ‘programer‘, sysdate, 12000 );
insert into temp(empno, ename, job, hiredate, sal) values(1234, ‘张小夫老三‘, ‘programer‘, sysdate, 12000 );
insert into temp(empno, ename, job, hiredate, sal) values(1234, ‘张老三‘, ‘programer‘, sysdate, 12000.9098 );
insert into temp values(1111, ‘张sdf‘, ‘student‘, ‘1233‘,to_date(‘2010-5-12‘,‘yyyy-mm-dd‘), 2000,12000.9098,10);
--1.2一次性插入多条记录
insert into temp(select * from emp);
select * from temp; |
| 删除 |
|
--2.删除表中的数据
delete from temp;
delete from temp where empno=7369;
--2.2彻底删除表中的所有数据,不可回滚
truncate table temp; |
| 更新 |
|
--3.更新
--将30部门所有员工的薪水提升10%
update temp set sal=sal + sal*2 where deptno = 30;
select deptno, sal from emp where deptno = 30;
select deptno, sal from temp where deptno = 30;
update temp set ename=‘test‘, sal=8000 where empno=7369;
select * from emp where empno=7369;
select * from temp where empno=7369; |
原文：http://www.cnblogs.com/haozhengfei/p/6538363.html