导入 Mysql 示例数据库 employees

Mysql也有跟Oracle的scott与employees相似的数据库，这样就免除了每次都要自己建表并插入数据了。

Mysql提供的供练习使用的数据库employees，下面地址：https://launchpad.net/test-db/employees-db-1/1.0.6
下载其中的employees_db-full-1.0.6.tar.bz2，之后按下列步骤解压缩，并安装。

1、解压文件
[root@rac1 opt]# tar -xjf employees_db-full-1.0.6.tar.bz2 
[root@rac1 opt]# cd employees_db
[root@rac1 employees_db]# ls -al
总计 164724
drwxr-xr-x 2 root root       4096 09-10 19:33 .
drwxr-xr-x 4 root root       4096 09-10 19:33 ..
-rw-r--r-- 1  501 games       752 2009-03-30 Changelog
-rw-r--r-- 1  501 games       161 2008-10-09 ._employees_partitioned2.sql
-rw-r--r-- 1  501 games      6460 2008-10-09 employees_partitioned2.sql
-rw-r--r-- 1  501 games      7624 2009-02-06 employees_partitioned3.sql
-rw-r--r-- 1  501 games      5660 2009-02-06 employees_partitioned.sql
-rw-r--r-- 1  501 games       161 2008-11-28 ._employees.sql
-rw-r--r-- 1  501 games      3861 2008-11-28 employees.sql
-rw-r--r-- 1  501 games       161 2008-07-30 ._load_departments.dump
-rw-r--r-- 1  501 games       241 2008-07-30 load_departments.dump
-rw-r--r-- 1  501 games  13828291 2009-03-30 load_dept_emp.dump
-rw-r--r-- 1  501 games       161 2008-07-30 ._load_dept_manager.dump
-rw-r--r-- 1  501 games      1043 2008-07-30 load_dept_manager.dump
-rw-r--r-- 1  501 games       161 2008-07-30 ._load_employees.dump
-rw-r--r-- 1  501 games  17422825 2008-07-30 load_employees.dump
-rw-r--r-- 1  501 games       161 2008-07-30 ._load_salaries.dump
-rw-r--r-- 1  501 games 115848997 2008-07-30 load_salaries.dump
-rw-r--r-- 1  501 games       161 2008-07-30 ._load_titles.dump
-rw-r--r-- 1  501 games  21265449 2008-07-30 load_titles.dump
-rw-r--r-- 1  501 games      3889 2009-03-30 objects.sql
-rw-r--r-- 1  501 games      2211 2008-07-30 README
-rw-r--r-- 1  501 games       161 2008-07-30 ._README
-rw-r--r-- 1  501 games      4455 2009-03-30 test_employees_md5.sql
-rw-r--r-- 1  501 games      4450 2009-03-30 test_employees_sha.sql

2、安装过程
[root@rac1 employees_db]# mysql -u root -p < employees.sql
Enter password: 
INFO
CREATING DATABASE STRUCTURE
INFO
storage engine: InnoDB
INFO
LOADING departments
INFO
LOADING employees
INFO
LOADING dept_emp
INFO
LOADING dept_manager
INFO
LOADING titles
INFO
LOADING salaries

3、检查安装的表有哪些
mysql> use employees;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Database changed
mysql> show tables;
+---------------------+
| Tables_in_employees |
+---------------------+
| departments         |
| dept_emp            |
| dept_manager        |
| employees           |
| salaries            |
| titles              |
+---------------------+
6 rows in set (0.04 sec)

4、employees.sql的内容（Innodb存储引擎，前面create table是创建表的脚本，后面source往表里插入数据）：
[root@rac1 employees_db]# cat employees.sql
--  Sample employee database 
--  See changelog table for details
--  Copyright (C) 2007,2008, MySQL AB
--  
--  Original data created by Fusheng Wang and Carlo Zaniolo
--  http://www.cs.aau.dk/TimeCenter/software.htm
--  http://www.cs.aau.dk/TimeCenter/Data/employeeTemporalDataSet.zip
-- 
--  Current schema by Giuseppe Maxia 
--  Data conversion from XML to relational by Patrick Crews
-- 
-- This work is licensed under the 
-- Creative Commons Attribution-Share Alike 3.0 Unported License. 
-- To view a copy of this license, visit 
-- http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to 
-- Creative Commons, 171 Second Street, Suite 300, San Francisco, 
-- California, 94105, USA.
-- 
--  DISCLAIMER
--  To the best of our knowledge, this data is fabricated, and
--  it does not correspond to real people. 
--  Any similarity to existing people is purely coincidental.
-- 

DROP DATABASE IF EXISTS employees;
CREATE DATABASE IF NOT EXISTS employees;
USE employees;

SELECT 'CREATING DATABASE STRUCTURE' as 'INFO';

DROP TABLE IF EXISTS dept_emp,
                     dept_manager,
                     titles,
                     salaries, 
                     employees, 
                     departments;

   set storage_engine = InnoDB;
-- set storage_engine = MyISAM;
-- set storage_engine = Falcon;
-- set storage_engine = PBXT;
-- set storage_engine = Maria;

select CONCAT('storage engine: ', @@storage_engine) as INFO;

CREATE TABLE employees (
    emp_no      INT             NOT NULL,
    birth_date  DATE            NOT NULL,
    first_name  VARCHAR(14)     NOT NULL,
    last_name   VARCHAR(16)     NOT NULL,
    gender      ENUM ('M','F')  NOT NULL,    
    hire_date   DATE            NOT NULL,
    PRIMARY KEY (emp_no)
);

CREATE TABLE departments (
    dept_no     CHAR(4)         NOT NULL,
    dept_name   VARCHAR(40)     NOT NULL,
    PRIMARY KEY (dept_no),
    UNIQUE  KEY (dept_name)
);

CREATE TABLE dept_manager (
   dept_no      CHAR(4)         NOT NULL,
   emp_no       INT             NOT NULL,
   from_date    DATE            NOT NULL,
   to_date      DATE            NOT NULL,
   KEY         (emp_no),
   KEY         (dept_no),
   FOREIGN KEY (emp_no)  REFERENCES employees (emp_no)    ON DELETE CASCADE,
   FOREIGN KEY (dept_no) REFERENCES departments (dept_no) ON DELETE CASCADE,
   PRIMARY KEY (emp_no,dept_no)
); 

CREATE TABLE dept_emp (
    emp_no      INT             NOT NULL,
    dept_no     CHAR(4)         NOT NULL,
    from_date   DATE            NOT NULL,
    to_date     DATE            NOT NULL,
    KEY         (emp_no),
    KEY         (dept_no),
    FOREIGN KEY (emp_no)  REFERENCES employees   (emp_no)  ON DELETE CASCADE,
    FOREIGN KEY (dept_no) REFERENCES departments (dept_no) ON DELETE CASCADE,
    PRIMARY KEY (emp_no,dept_no)
);

CREATE TABLE titles (
    emp_no      INT             NOT NULL,
    title       VARCHAR(50)     NOT NULL,
    from_date   DATE            NOT NULL,
    to_date     DATE,
    KEY         (emp_no),
    FOREIGN KEY (emp_no) REFERENCES employees (emp_no) ON DELETE CASCADE,
    PRIMARY KEY (emp_no,title, from_date)
); 

CREATE TABLE salaries (
    emp_no      INT             NOT NULL,
    salary      INT             NOT NULL,
    from_date   DATE            NOT NULL,
    to_date     DATE            NOT NULL,
    KEY         (emp_no),
    FOREIGN KEY (emp_no) REFERENCES employees (emp_no) ON DELETE CASCADE,
    PRIMARY KEY (emp_no, from_date)
); 

SELECT 'LOADING departments' as 'INFO';
source load_departments.dump ;
SELECT 'LOADING employees' as 'INFO';
source load_employees.dump ;
SELECT 'LOADING dept_emp' as 'INFO';
source load_dept_emp.dump ;
SELECT 'LOADING dept_manager' as 'INFO';
source load_dept_manager.dump ;
SELECT 'LOADING titles' as 'INFO';
source load_titles.dump ;
SELECT 'LOADING salaries' as 'INFO';
source load_salaries.dump ;