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4章(フィルタリング), 4.5(練習問題)4-3を解いてみる。
4-3.
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 1 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> desc account; +--------------------+----------------------------------+------+-----+---------+----------------+ | Field | Type | Null | Key | Default | Extra | +--------------------+----------------------------------+------+-----+---------+----------------+ | account_id | int(10) unsigned | NO | PRI | NULL | auto_increment | | product_cd | varchar(10) | NO | MUL | NULL | | | cust_id | int(10) unsigned | NO | MUL | NULL | | | open_date | date | NO | | NULL | | | close_date | date | YES | | NULL | | | last_activity_date | date | YES | | NULL | | | status | enum('ACTIVE','CLOSED','FROZEN') | YES | | NULL | | | open_branch_id | smallint(5) unsigned | YES | MUL | NULL | | | open_emp_id | smallint(5) unsigned | YES | MUL | NULL | | | avail_balance | float(10,2) | YES | | NULL | | | pending_balance | float(10,2) | YES | | NULL | | +--------------------+----------------------------------+------+-----+---------+----------------+ 11 rows in set (0.06 sec) mysql> select account_id -> from account -> where open_date between '2002-01-01' and '2002-12-31'; +------------+ | account_id | +------------+ | 7 | | 8 | | 14 | | 24 | | 25 | +------------+ 5 rows in set (0.29 sec) mysql> select account_id,open_date -> from account -> where open_date between '2002-01-01' and '2002-12-31'; +------------+------------+ | account_id | open_date | +------------+------------+ | 7 | 2002-11-23 | | 8 | 2002-12-15 | | 14 | 2002-08-24 | | 24 | 2002-09-30 | | 25 | 2002-10-01 | +------------+------------+ 5 rows in set (0.00 sec) mysql> quit; Bye $
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