SQL - クエリ入門(select節、from節)

開発環境

• OS: OS X Lion - Apple
• データベース言語: SQL
• リレーショナルデータベース: MySQL

『初めてのSQL』(Alan Beaulieu 著、株式会社クイープ 翻訳、オライリー・ジャパン、2006年、ISBN4-87311-281-8) の3章(クエリ入門),　3.8(練習問題)3-1を解いてみる。

3-1.

入出力結果(Terminal)

$ mysql -u lrngsql -p bank
Enter password: 
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A

Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 47
Server version: 5.5.24 MySQL Community Server (GPL)

Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show tables;
+----------------+
| Tables_in_bank |
+----------------+
| account        |
| branch         |
| business       |
| customer       |
| department     |
| employee       |
| individual     |
| officer        |
| product        |
| product_type   |
| tmp            |
| transaction    |
+----------------+
12 rows in set (0.01 sec)

mysql> desc employee;
+--------------------+----------------------+------+-----+---------+----------------+
| Field              | Type                 | Null | Key | Default | Extra          |
+--------------------+----------------------+------+-----+---------+----------------+
| emp_id             | smallint(5) unsigned | NO   | PRI | NULL    | auto_increment |
| fname              | varchar(20)          | NO   |     | NULL    |                |
| lname              | varchar(20)          | NO   |     | NULL    |                |
| start_date         | date                 | NO   |     | NULL    |                |
| end_date           | date                 | YES  |     | NULL    |                |
| superior_emp_id    | smallint(5) unsigned | YES  | MUL | NULL    |                |
| dept_id            | smallint(5) unsigned | YES  | MUL | NULL    |                |
| title              | varchar(20)          | YES  |     | NULL    |                |
| assigned_branch_id | smallint(5) unsigned | YES  | MUL | NULL    |                |
+--------------------+----------------------+------+-----+---------+----------------+
9 rows in set (0.05 sec)

mysql> select emp_id,lname,fname
    -> from employee;
+--------+-----------+----------+
| emp_id | lname     | fname    |
+--------+-----------+----------+
|      1 | Smith     | Michael  |
|      2 | Barker    | Susan    |
|      3 | Tyler     | Robert   |
|      4 | Hawthorne | Susan    |
|      5 | Gooding   | John     |
|      6 | Fleming   | Helen    |
|      7 | Tucker    | Chris    |
|      8 | Parker    | Sarah    |
|      9 | Grossman  | Jane     |
|     10 | Roberts   | Paula    |
|     11 | Ziegler   | Thomas   |
|     12 | Jameson   | Samantha |
|     13 | Blake     | John     |
|     14 | Mason     | Cindy    |
|     15 | Portman   | Frank    |
|     16 | Markham   | Theresa  |
|     17 | Fowler    | Beth     |
|     18 | Tulman    | Rick     |
+--------+-----------+----------+
18 rows in set (0.00 sec)

mysql> quit;
Bye
$