SQL - 結合(右外部結合(right outer join))

初めてのSQL
Alan Beaulieu (著)

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、ISBN4-8733-181-8) の10章(結合),　10.4(練習問題)10-2を解いてみる。

10-2.

SQL文(TextWrangler)

select p.name, a.account_id
from account a right outer join product p
on a.product_cd = p.product_cd;

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 2
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> select p.name, a.account_id
    -> from account a right outer join product p
    -> on a.product_cd = p.product_cd;
+-------------------------+------------+
| name                    | account_id |
+-------------------------+------------+
| auto loan               |       NULL |
| business line of credit |         25 |
| business line of credit |         27 |
| certificate of deposit  |          3 |
| certificate of deposit  |         15 |
| certificate of deposit  |         17 |
| certificate of deposit  |         23 |
| checking account        |          1 |
| checking account        |          4 |
| checking account        |          7 |
| checking account        |         10 |
| checking account        |         13 |
| checking account        |         14 |
| checking account        |         18 |
| checking account        |         21 |
| checking account        |         24 |
| checking account        |         28 |
| money market account    |          8 |
| money market account    |         12 |
| money market account    |         22 |
| home mortgage           |       NULL |
| savings account         |          2 |
| savings account         |          5 |
| savings account         |         11 |
| savings account         |         19 |
| small business loan     |         29 |
+-------------------------+------------+
26 rows in set (0.00 sec)

mysql> quit
Bye
$