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README.md
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README.md
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# learn_oracle_notebook
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Oracle 学习笔记
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Oracle 学习笔记
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## 查询 Select
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>
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> 查询语句
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当涉及到数据库查询时，子查询和表关联是非常常见的操作。让我通过一些简单的例子，并对每个例子进行简要的讲解来帮助你完善笔记。
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### 子查询
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#### 关联子查询
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```sql
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SELECT *
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FROM employees
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WHERE department_id IN
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(SELECT department_id
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FROM departments
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WHERE location_id = 1700);
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```
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这个例子演示了一个关联子查询。内部的子查询先根据条件从departments表中选择特定的部门ID，然后外部的主查询根据这些部门ID从employees表中检索相关的员工信息。这种方式可以帮助我们根据内部查询的结果来过滤外部查询的数据。
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### 表关联
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#### 左连接
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```sql
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SELECT customers.name, orders.order_date
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FROM customers
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LEFT JOIN orders ON customers.id = orders.customer_id;
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```
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这个例子演示了左连接，它返回了所有的顾客信息以及与之关联的订单信息。即使某些顾客没有订单，也会返回顾客的信息。这在需要显示所有主体数据的情况下非常有用。
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@ -0,0 +1,107 @@
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-- 查询名字中有 k
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-- 并薪水大于 2000 的员工姓名、薪水、以及年收入(12*(薪水+奖金))
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SELECT
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ENAME,
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SAL,
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COMM,
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NVL(COMM, 0),
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12*(SAL+NVL(COMM, 0)) YEAR_SAL
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FROM
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EMP
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WHERE
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ENAME LIKE '%K%'
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AND SAL > 2000;
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-- 查询那些部门的平均薪水大于2000
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SELECT
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*
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FROM
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(
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SELECT
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DEPTNO,
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AVG(NVL(SAL, 0)) AVG_SAL
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FROM
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EMP
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WHERE
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DEPTNO IS NOT NULL
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GROUP BY
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DEPTNO
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HAVING
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AVG(NVL(SAL, 0)) > 2000
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ORDER BY
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DEPTNO
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) A
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JOIN DEPT D
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ON A.DEPTNO=D.DEPTNO;
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-- 那些人的薪水超过 10 部门的最高薪水
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SELECT
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ENAME 姓名,
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SAL 薪水,
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DEPTNO 部门
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FROM
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EMP E
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WHERE
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E.SAL > (
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SELECT
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MAX(SAL)
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FROM
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EMP
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WHERE
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EMP.DEPTNO=20
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);
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-- 查询各个部门的最低薪水
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SELECT
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DEPTNO 部门号,
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LOW_SAL 最低薪水
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FROM
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(
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SELECT
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MIN(NVL(SAL, 0)) LOW_SAL
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FROM
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EMP
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GROUP BY
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DEPTNO
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) L
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JOIN EMP E
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ON L.LOW_SAL=E.SAL;
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SELECT
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DEPTNO 部门号,
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MIN(SAL) 最低薪水
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FROM
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EMP
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GROUP BY
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DEPTNO);
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-- 查询各个部门的平均大于20部门的平均薪水
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SELECT
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DEPTNO,
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AVG(NVL(SAL, 0))
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FROM
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EMP
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WHERE
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DEPTNO IS NOT NULL
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GROUP BY
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DEPTNO
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HAVING
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AVG(NVL(SAL, 0)) > (
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SELECT
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AVG(NVL(SAL, 0))
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FROM
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EMP
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WHERE
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DEPTNO=20
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)
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-- 查询员工姓名、薪水、部门号、和部门名称
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SELECT
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E.ENAME 姓名,
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E.SAL 薪水,
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E.ENAME 部门号,
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E.DEPTNO 部门名称
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FROM
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EMP E,
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DEPT D
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WHERE
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E.DEPTNO=D.DEPTNO;
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@ -0,0 +1,298 @@
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/*
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练习2
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*/
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-- 创建数据表
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CREATE TABLE USER_SK (
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ID NUMBER(4),
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PASSWORD CHAR(4),
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NAME CHAR(20),
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PHONE CHAR(20),
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EMAIL VARCHAR(50)
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);
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-- 为表添加数据
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INSERT INTO USER_SK VALUES(
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1001,
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'1234',
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'liucs',
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'13600000000',
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'LIUCS@SINA.COM'
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);
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-- 查询数据
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SELECT
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*
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FROM
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USER_SK;
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/*
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案例-1
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*/
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-- 删除表
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DROP TABLE DEPT_SK;
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CREATE TABLE DEPT_SK(
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DEPTNO NUMBER(2),
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DNAME CHAR(20),
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LOCATION CHAR(20)
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);
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INSERT INTO DEPT_SK VALUES(
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10,
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'developer',
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'beijing'
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);
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INSERT INTO DEPT_SK VALUES(
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20,
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'account',
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'shanghai'
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);
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INSERT INTO DEPT_SK VALUES(
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30,
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'sales',
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'guangzhou'
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);
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INSERT INTO DEPT_SK VALUES(
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40,
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'operations',
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'tianjin'
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);
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COMMIT;
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-- 查询创建的 DEPT_SK 表
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SELECT
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*
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FROM
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DEPT_SK;
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/*
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案例-1
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创建表: EMP
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*/
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-- 创建表 EMP_SK
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CREATE TABLE EMP_SK(
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EMPNO NUMBER(4),
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ENAME VARCHAR2(20),
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JOB VARCHAR2(15),
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SALARY NUMBER(7, 2),
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BONUS NUMBER(7, 2),
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HIREDATE DATE,
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MGR NUMBER(4),
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DEPTNO NUMBER(10)
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);
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-- 插入数据
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INSERT INTO EMP_SK VALUES(
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1001,
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'张无忌',
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'Manager',
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10000,
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2000,
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'',
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1005,
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10
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);
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INSERT INTO EMP_SK VALUES(
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1002,
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'刘芒松',
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'Analyst',
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8000,
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1000,
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'',
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NULL,
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10
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);
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INSERT INTO EMP_SK VALUES(
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1003,
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'李翔',
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'Analyst',
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9000,
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1000,
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'',
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1001,
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10
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);
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INSERT INTO EMP_SK VALUES(
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1004,
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'郭英莹',
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'Programmer',
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5000,
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NULL,
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'',
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1001,
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10
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);
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INSERT INTO EMP_SK VALUES(
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1005,
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'张三丰',
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'President',
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15000,
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NULL,
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'',
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NULL,
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20
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);
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INSERT INTO EMP_SK VALUES(
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1006,
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'燕小六',
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'Manager',
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5000,
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400,
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'',
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1005,
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20
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);
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INSERT INTO EMP_SK VALUES(
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1007,
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'陆无双',
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'Clerk',
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3000,
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500,
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'',
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1006,
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20
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);
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INSERT INTO EMP_SK VALUES(
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1008,
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'黄莺',
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'Manager',
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5000,
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500,
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'',
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1005,
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30
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);
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INSERT INTO EMP_SK VALUES(
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1009,
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'乔小宝',
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'Salesman',
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4000,
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NULL,
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'',
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1008,
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30
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);
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INSERT INTO EMP_SK VALUES(
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1010,
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'郭琦',
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'Salesman',
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4500,
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500,
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'',
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1008,
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30
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);
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-- 设置显示格式
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set linesize 150;
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col empno for 9999;
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col mgr for 9999;
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col deptno for 99;
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col salary for 99999.99;
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-- 查询表
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SELECT
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*
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FROM
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EMP_SK;
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-- 插入一条ID 为1011, 姓名为 '余泽成', 其余字段为NULL 的数据
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INSERT INTO EMP_SK(
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EMPNO,
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ENAME
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) VALUES(
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1011,
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'余泽成'
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);
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-- 查询EMP_XXX 表, 如果没有职位, 显示'no position', 如果有职位, 显示员工的职位
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SELECT
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ENAME,
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NVL(JOB, '无职位')
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FROM
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EMP_SK;
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/*
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案例2-关联子查询
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*/
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-- 哪些员工的薪水比公司的平均薪水低？
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SELECT
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ENAME,
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SALARY
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FROM
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EMP_SK
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WHERE
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SALARY < (
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SELECT
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AVG(NVL(SALARY, 0))
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FROM
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EMP_SK
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);
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-- 哪些员工的薪水比本部门的平均薪水低？不再和整个部门的平均薪水比较。
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SELECT
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E.ENAME,
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E.SALARY,
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E.DEPTNO
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FROM
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EMP_SK E
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JOIN (
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SELECT
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AVG(NVL(SALARY, 0)) NEW_SALARY,
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DEPTNO
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FROM
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EMP_SK
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WHERE
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SALARY IS NOT NULL
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GROUP BY
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DEPTNO
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) NE
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ON E.DEPTNO=NE.DEPTNO
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WHERE
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E.SALARY < NE.NEW_SALARY
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ORDER BY
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DEPTNO;
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-- 只查询当前时间
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SELECT
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SYSDATE
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FROM
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DUAL;
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/*
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案例3-关联子查询
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*/
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-- 哪些人是其他人的经理？( 查找有下属的员工 )
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SELECT
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ENAME,
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EMPNO
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FROM
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EMP_SK E
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WHERE
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EXISTS (
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SELECT
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1
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FROM
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EMP_SK
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WHERE
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MGR=E.EMPNO
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);
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@ -0,0 +1,135 @@
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/*
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Author: Fromsko
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DATE: 2024.09.10 20:30
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*/
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-- 查询两个表
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SELECT
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*
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FROM
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EMP_WHC;
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SELECT
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*
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FROM
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DEPT_WHC;
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-- 工资大于张无忌的
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SELECT
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ENAME,
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SALARY
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FROM
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EMP_WHC
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WHERE
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SALARY > ANY(
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SELECT
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SALARY
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FROM
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EMP_WHC
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WHERE
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ENAME='张无忌'
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);
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SELECT
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ENAME,
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DEPTNO
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FROM
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EMP_WHC
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WHERE
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DEPTNO IN (
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SELECT
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DEPTNO
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FROM
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EMP_WHC
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WHERE
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ENAME='张无忌'
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)
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AND ENAME<>'张无忌';
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SELECT
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ENAME,
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E.DEPTNO,
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A.COU,
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A.AVG_SAL
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FROM
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EMP_WHC E,
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(
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SELECT
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DEPTNO,
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COUNT(*) COU,
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AVG(NVL(SALARY, 0)) AVG_SAL
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FROM
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EMP_WHC
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WHERE
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DEPTNO IS NOT NULL
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GROUP BY
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DEPTNO
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) A
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WHERE
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E.DEPTNO = A.DEPTNO;
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--
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SELECT
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DEPTNO,
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AVG(NVL(SALARY, 0))
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FROM
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EMP_WHC
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WHERE
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DEPTNO IS NOT NULL
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GROUP BY
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DEPTNO
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HAVING
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AVG(NVL(SALARY, 0)) > (
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SELECT
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AVG(NVL(SALARY, 0))
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FROM
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EMP_WHC
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WHERE
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DEPTNO=20
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);
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--列出员工的名字薪水和部门还有职位 要求这些员工所在
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--部门的人数比10部门的人数多
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SELECT
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ENAME,
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SALARY,
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DEPTNO,
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JOB
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FROM
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EMP_WHC
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WHERE
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DEPTNO IN (
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SELECT
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DEPTNO
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FROM
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EMP_WHC
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WHERE
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DEPTNO IS NOT NULL
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GROUP BY
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DEPTNO
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HAVING
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COUNT(*) > (
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SELECT
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COUNT(*)
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FROM
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EMP_WHC
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WHERE
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DEPTNO =10
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)
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);
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--那些员工的薪水比本部门的平均薪水低?
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SELECT
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ENAME,
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SALARY
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FROM
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EMP_WHC E
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WHERE
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SALARY <(
|
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SELECT
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AVG(SALARY)
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FROM
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EMP_WHC
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WHERE
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DEPTNO = E.DEPTNO
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)
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|
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@ -0,0 +1,92 @@
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/*
|
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Author: Fromsko
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DATE: 2024.09.10 20:30
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*/
|
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-- 更新赵敏的数据
|
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UPDATE EMP_WHC
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SET
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MGR = 1002
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WHERE
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ENAME = '赵敏';
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|
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-- 总数居
|
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SELECT
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*
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FROM
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EMP_WHC;
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||||
|
||||
-- 谁是张无忌的下属？ (MGR=EMPNO=1002)
|
||||
SELECT
|
||||
ENAME
|
||||
FROM
|
||||
EMP_WHC
|
||||
WHERE
|
||||
MGR IN (
|
||||
SELECT
|
||||
EMPNO
|
||||
FROM
|
||||
EMP_WHC
|
||||
WHERE
|
||||
ENAME='张无忌'
|
||||
);
|
||||
|
||||
--
|
||||
|
||||
/*
|
||||
子查询:
|
||||
子查询的条件是单列还是多列没关系,
|
||||
关键是要分清返回的是单行还是多行
|
||||
|
||||
- 如果是单行, 用单行比较运算符, =, >, < 这些
|
||||
- 如果是多行, 用IN, >ALL, >ANY, <ALL, <ANY 这些
|
||||
*/
|
||||
|
||||
-- 每个部门拿最高薪水的是谁?
|
||||
|
||||
--- 表外连接查法
|
||||
SELECT
|
||||
E.ENAME,
|
||||
E.SALARY,
|
||||
E.DEPTNO
|
||||
FROM
|
||||
EMP_WHC E
|
||||
JOIN (
|
||||
SELECT
|
||||
DEPTNO,
|
||||
MAX(SALARY) NEW_SALARY
|
||||
FROM
|
||||
EMP_WHC
|
||||
WHERE
|
||||
DEPTNO IS NOT NULL
|
||||
GROUP BY
|
||||
DEPTNO
|
||||
) R
|
||||
ON E.DEPTNO=R.DEPTNO
|
||||
WHERE
|
||||
E.SALARY=R.NEW_SALARY
|
||||
ORDER BY
|
||||
E.DEPTNO;
|
||||
|
||||
--- 子查询法
|
||||
SELECT
|
||||
ENAME,
|
||||
SALARY,
|
||||
JOB,
|
||||
DEPTNO
|
||||
FROM
|
||||
EMP_WHC
|
||||
WHERE -- 顺序必须对上
|
||||
(DEPTNO, SALARY) IN (
|
||||
SELECT
|
||||
DEPTNO,
|
||||
MAX(SALARY) NEW_SALARY
|
||||
FROM
|
||||
EMP_WHC
|
||||
WHERE
|
||||
DEPTNO IS NOT NULL
|
||||
GROUP BY
|
||||
DEPTNO
|
||||
)
|
||||
ORDER BY
|
||||
DEPTNO;
|
||||
|
|
@ -0,0 +1,174 @@
|
|||
/*
|
||||
Navicat Premium Data Transfer
|
||||
|
||||
Source Server : 本地-Oracle
|
||||
Source Server Type : Oracle
|
||||
Source Server Version : 110200 (Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
|
||||
With the Partitioning, OLAP, Data Mining and Real Application Testing options)
|
||||
Source Host : localhost:1521
|
||||
Source Schema : SCOTT
|
||||
|
||||
Target Server Type : Oracle
|
||||
Target Server Version : 110200 (Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
|
||||
With the Partitioning, OLAP, Data Mining and Real Application Testing options)
|
||||
File Encoding : 65001
|
||||
|
||||
Date: 10/09/2024 10:29:02
|
||||
*/
|
||||
|
||||
|
||||
-- ----------------------------
|
||||
-- Table structure for BONUS
|
||||
-- ----------------------------
|
||||
DROP TABLE "SCOTT"."BONUS";
|
||||
CREATE TABLE "SCOTT"."BONUS" (
|
||||
"ENAME" VARCHAR2(10 BYTE),
|
||||
"JOB" VARCHAR2(9 BYTE),
|
||||
"SAL" NUMBER,
|
||||
"COMM" NUMBER
|
||||
)
|
||||
LOGGING
|
||||
NOCOMPRESS
|
||||
PCTFREE 10
|
||||
INITRANS 1
|
||||
STORAGE (
|
||||
BUFFER_POOL DEFAULT
|
||||
)
|
||||
PARALLEL 1
|
||||
NOCACHE
|
||||
DISABLE ROW MOVEMENT
|
||||
;
|
||||
|
||||
-- ----------------------------
|
||||
-- Records of BONUS
|
||||
-- ----------------------------
|
||||
|
||||
-- ----------------------------
|
||||
-- Table structure for DEPT
|
||||
-- ----------------------------
|
||||
DROP TABLE "SCOTT"."DEPT";
|
||||
CREATE TABLE "SCOTT"."DEPT" (
|
||||
"DEPTNO" NUMBER(2,0) NOT NULL,
|
||||
"DNAME" VARCHAR2(14 BYTE),
|
||||
"LOC" VARCHAR2(13 BYTE)
|
||||
)
|
||||
LOGGING
|
||||
NOCOMPRESS
|
||||
PCTFREE 10
|
||||
INITRANS 1
|
||||
STORAGE (
|
||||
INITIAL 65536
|
||||
NEXT 1048576
|
||||
MINEXTENTS 1
|
||||
MAXEXTENTS 2147483645
|
||||
BUFFER_POOL DEFAULT
|
||||
)
|
||||
PARALLEL 1
|
||||
NOCACHE
|
||||
DISABLE ROW MOVEMENT
|
||||
;
|
||||
|
||||
-- ----------------------------
|
||||
-- Records of DEPT
|
||||
-- ----------------------------
|
||||
INSERT INTO "SCOTT"."DEPT" VALUES ('10', 'ACCOUNTING', 'NEW YORK');
|
||||
INSERT INTO "SCOTT"."DEPT" VALUES ('20', 'RESEARCH', 'DALLAS');
|
||||
INSERT INTO "SCOTT"."DEPT" VALUES ('30', 'SALES', 'CHICAGO');
|
||||
INSERT INTO "SCOTT"."DEPT" VALUES ('40', 'OPERATIONS', 'BOSTON');
|
||||
|
||||
-- ----------------------------
|
||||
-- Table structure for EMP
|
||||
-- ----------------------------
|
||||
DROP TABLE "SCOTT"."EMP";
|
||||
CREATE TABLE "SCOTT"."EMP" (
|
||||
"EMPNO" NUMBER(4,0) NOT NULL,
|
||||
"ENAME" VARCHAR2(10 BYTE),
|
||||
"JOB" VARCHAR2(9 BYTE),
|
||||
"MGR" NUMBER(4,0),
|
||||
"HIREDATE" DATE,
|
||||
"SAL" NUMBER(7,2),
|
||||
"COMM" NUMBER(7,2),
|
||||
"DEPTNO" NUMBER(2,0)
|
||||
)
|
||||
LOGGING
|
||||
NOCOMPRESS
|
||||
PCTFREE 10
|
||||
INITRANS 1
|
||||
STORAGE (
|
||||
INITIAL 65536
|
||||
NEXT 1048576
|
||||
MINEXTENTS 1
|
||||
MAXEXTENTS 2147483645
|
||||
BUFFER_POOL DEFAULT
|
||||
)
|
||||
PARALLEL 1
|
||||
NOCACHE
|
||||
DISABLE ROW MOVEMENT
|
||||
;
|
||||
|
||||
-- ----------------------------
|
||||
-- Records of EMP
|
||||
-- ----------------------------
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7369', 'SMITH', 'CLERK', '7902', TO_DATE('1980-12-17 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '800', NULL, '20');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7499', 'ALLEN', 'SALESMAN', '7698', TO_DATE('1981-02-20 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '1600', '300', '30');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7521', 'WARD', 'SALESMAN', '7698', TO_DATE('1981-02-22 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '1250', '500', '30');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7566', 'JONES', 'MANAGER', '7839', TO_DATE('1981-04-02 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '2975', NULL, '20');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7654', 'MARTIN', 'SALESMAN', '7698', TO_DATE('1981-09-28 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '1250', '1400', '30');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7698', 'BLAKE', 'MANAGER', '7839', TO_DATE('1981-05-01 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '2850', NULL, '30');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7782', 'CLARK', 'MANAGER', '7839', TO_DATE('1981-06-09 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '2450', NULL, '10');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7788', 'SCOTT', 'ANALYST', '7566', TO_DATE('1987-04-19 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '3000', NULL, '20');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7839', 'KING', 'PRESIDENT', NULL, TO_DATE('1981-11-17 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '5000', NULL, '10');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7844', 'TURNER', 'SALESMAN', '7698', TO_DATE('1981-09-08 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '1500', '0', '30');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7876', 'ADAMS', 'CLERK', '7788', TO_DATE('1987-05-23 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '1100', NULL, '20');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7900', 'JAMES', 'CLERK', '7698', TO_DATE('1981-12-03 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '950', NULL, '30');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7902', 'FORD', 'ANALYST', '7566', TO_DATE('1981-12-03 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '3000', NULL, '20');
|
||||
INSERT INTO "SCOTT"."EMP" VALUES ('7934', 'MILLER', 'CLERK', '7782', TO_DATE('1982-01-23 00:00:00', 'SYYYY-MM-DD HH24:MI:SS'), '1300', NULL, '10');
|
||||
|
||||
-- ----------------------------
|
||||
-- Table structure for SALGRADE
|
||||
-- ----------------------------
|
||||
DROP TABLE "SCOTT"."SALGRADE";
|
||||
CREATE TABLE "SCOTT"."SALGRADE" (
|
||||
"GRADE" NUMBER,
|
||||
"LOSAL" NUMBER,
|
||||
"HISAL" NUMBER
|
||||
)
|
||||
LOGGING
|
||||
NOCOMPRESS
|
||||
PCTFREE 10
|
||||
INITRANS 1
|
||||
STORAGE (
|
||||
INITIAL 65536
|
||||
NEXT 1048576
|
||||
MINEXTENTS 1
|
||||
MAXEXTENTS 2147483645
|
||||
BUFFER_POOL DEFAULT
|
||||
)
|
||||
PARALLEL 1
|
||||
NOCACHE
|
||||
DISABLE ROW MOVEMENT
|
||||
;
|
||||
|
||||
-- ----------------------------
|
||||
-- Records of SALGRADE
|
||||
-- ----------------------------
|
||||
INSERT INTO "SCOTT"."SALGRADE" VALUES ('1', '700', '1200');
|
||||
INSERT INTO "SCOTT"."SALGRADE" VALUES ('2', '1201', '1400');
|
||||
INSERT INTO "SCOTT"."SALGRADE" VALUES ('3', '1401', '2000');
|
||||
INSERT INTO "SCOTT"."SALGRADE" VALUES ('4', '2001', '3000');
|
||||
INSERT INTO "SCOTT"."SALGRADE" VALUES ('5', '3001', '9999');
|
||||
|
||||
-- ----------------------------
|
||||
-- Primary Key structure for table DEPT
|
||||
-- ----------------------------
|
||||
ALTER TABLE "SCOTT"."DEPT" ADD CONSTRAINT "PK_DEPT" PRIMARY KEY ("DEPTNO");
|
||||
|
||||
-- ----------------------------
|
||||
-- Primary Key structure for table EMP
|
||||
-- ----------------------------
|
||||
ALTER TABLE "SCOTT"."EMP" ADD CONSTRAINT "PK_EMP" PRIMARY KEY ("EMPNO");
|
||||
|
||||
-- ----------------------------
|
||||
-- Foreign Keys structure for table EMP
|
||||
-- ----------------------------
|
||||
ALTER TABLE "SCOTT"."EMP" ADD CONSTRAINT "FK_DEPTNO" FOREIGN KEY ("DEPTNO") REFERENCES "SCOTT"."DEPT" ("DEPTNO") NOT DEFERRABLE INITIALLY IMMEDIATE NORELY VALIDATE;
|
||||
|
|
@ -0,0 +1,297 @@
|
|||
CREATE TABLE EMP_WHC (
|
||||
EMPNO NUMBER PRIMARY KEY,
|
||||
ENAME VARCHAR2(50),
|
||||
JOB VARCHAR2(50),
|
||||
SALARY NUMBER(10, 2),
|
||||
BONUS NUMBER(10, 2),
|
||||
HIREDATE DATE,
|
||||
MGR NUMBER,
|
||||
DEPTNO NUMBER
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1001,
|
||||
'张三丰',
|
||||
'BOSS',
|
||||
88888.00,
|
||||
8888.00,
|
||||
TO_DATE('2010-01-01', 'YYYY-MM-DD'),
|
||||
NULL,
|
||||
10
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1002,
|
||||
'张无忌',
|
||||
'Manager',
|
||||
77777.00,
|
||||
7777.00,
|
||||
TO_DATE('2012-02-02', 'YYYY-MM-DD'),
|
||||
1001,
|
||||
10
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1003,
|
||||
'赵敏',
|
||||
'财务',
|
||||
20000.00,
|
||||
500.00,
|
||||
TO_DATE('2012-03-03', 'YYYY-MM-DD'),
|
||||
1001,
|
||||
20
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1004,
|
||||
'刘备',
|
||||
'Manager',
|
||||
66666.00,
|
||||
6666.00,
|
||||
TO_DATE('2014-04-04', 'YYYY-MM-DD'),
|
||||
1001,
|
||||
20
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1005,
|
||||
'关羽',
|
||||
'市场',
|
||||
3800.00,
|
||||
2000.00,
|
||||
TO_DATE('2014-05-05', 'YYYY-MM-DD'),
|
||||
1004,
|
||||
20
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1006,
|
||||
'张飞',
|
||||
'市场',
|
||||
3000.00,
|
||||
1500.00,
|
||||
TO_DATE('2014-06-06', 'YYYY-MM-DD'),
|
||||
1004,
|
||||
20
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1007,
|
||||
'唐三藏',
|
||||
'Manager',
|
||||
55555.00,
|
||||
5555.00,
|
||||
TO_DATE('2018-07-07', 'YYYY-MM-DD'),
|
||||
1001,
|
||||
30
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1008,
|
||||
'孙悟空',
|
||||
'销售',
|
||||
5000.00,
|
||||
6000.00,
|
||||
TO_DATE('2018-08-08', 'YYYY-MM-DD'),
|
||||
1007,
|
||||
30
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1009,
|
||||
'猪八戒',
|
||||
'销售',
|
||||
5000.00,
|
||||
6000.00,
|
||||
TO_DATE('2018-09-09', 'YYYY-MM-DD'),
|
||||
1007,
|
||||
30
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1010,
|
||||
'沙悟净',
|
||||
'销售',
|
||||
3000.00,
|
||||
1000.00,
|
||||
TO_DATE('2018-10-10', 'YYYY-MM-DD'),
|
||||
1007,
|
||||
30
|
||||
);
|
||||
|
||||
INSERT INTO EMP_WHC (
|
||||
EMPNO,
|
||||
ENAME,
|
||||
JOB,
|
||||
SALARY,
|
||||
BONUS,
|
||||
HIREDATE,
|
||||
MGR,
|
||||
DEPTNO
|
||||
) VALUES (
|
||||
1011,
|
||||
'杨过',
|
||||
'Manager',
|
||||
4444.00,
|
||||
NULL,
|
||||
TO_DATE('2021-11-11', 'YYYY-MM-DD'),
|
||||
1001,
|
||||
40
|
||||
);
|
||||
|
||||
SELECT
|
||||
*
|
||||
FROM
|
||||
EMP_WHC;
|
||||
|
||||
-- 第二张表
|
||||
CREATE TABLE DEPT_WHC (
|
||||
DEPTNO NUMBER PRIMARY KEY,
|
||||
DNAME VARCHAR2(50),
|
||||
LOCATION VARCHAR2(50)
|
||||
);
|
||||
|
||||
INSERT INTO DEPT_WHC (
|
||||
DEPTNO,
|
||||
DNAME,
|
||||
LOCATION
|
||||
) VALUES (
|
||||
60,
|
||||
'研发部',
|
||||
'北京'
|
||||
);
|
||||
|
||||
INSERT INTO DEPT_WHC (
|
||||
DEPTNO,
|
||||
DNAME,
|
||||
LOCATION
|
||||
) VALUES (
|
||||
10,
|
||||
'财务部',
|
||||
'张家界'
|
||||
);
|
||||
|
||||
INSERT INTO DEPT_WHC (
|
||||
DEPTNO,
|
||||
DNAME,
|
||||
LOCATION
|
||||
) VALUES (
|
||||
20,
|
||||
'市场部',
|
||||
'南京'
|
||||
);
|
||||
|
||||
INSERT INTO DEPT_WHC (
|
||||
DEPTNO,
|
||||
DNAME,
|
||||
LOCATION
|
||||
) VALUES (
|
||||
30,
|
||||
'销售部',
|
||||
'杭州'
|
||||
);
|
||||
|
||||
INSERT INTO DEPT_WHC (
|
||||
DEPTNO,
|
||||
DNAME,
|
||||
LOCATION
|
||||
) VALUES (
|
||||
40,
|
||||
'安保部',
|
||||
'苏州'
|
||||
);
|
||||
|
||||
SELECT
|
||||
*
|
||||
FROM
|
||||
DEPT_WHC;
|
||||
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|
After Width: | Height: | Size: 1.4 MiB |
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|
After Width: | Height: | Size: 385 KiB |
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|
After Width: | Height: | Size: 75 KiB |
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|
After Width: | Height: | Size: 607 KiB |
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|
After Width: | Height: | Size: 78 KiB |
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|
After Width: | Height: | Size: 753 KiB |
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|
After Width: | Height: | Size: 1023 KiB |
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|
After Width: | Height: | Size: 723 KiB |
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|
After Width: | Height: | Size: 688 KiB |
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|
|
@ -0,0 +1,11 @@
|
|||
-- 显示用户
|
||||
SHOW user;
|
||||
|
||||
-- 查询数据
|
||||
SELECT
|
||||
*
|
||||
FROM
|
||||
EMP;
|
||||
|
||||
-- 显示结构
|
||||
DESC EMP;
|
||||
|
|
@ -0,0 +1,18 @@
|
|||
CREATE TABLESPACE WATERBOSS
|
||||
DATAFILE 'R:\waterboss.dbf'
|
||||
|
||||
-- 分配大小
|
||||
SIZE 100m
|
||||
|
||||
-- 自动扩展数据量
|
||||
AUTOEXTEND ON
|
||||
NEXT 10m
|
||||
|
||||
-- 设置时间
|
||||
SET TIME ON;
|
||||
|
||||
-- 输出用户
|
||||
SHOW USER;
|
||||
|
||||
-- 修改显示行数
|
||||
SET LINESIZE 200;
|
||||
Loading…
Reference in New Issue