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db-lesson/【練習問題】 SQL/Question1/MySQL SQL問題集 part1.txt
2026-09-28 15:35:28 +09:00

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mysql> SELECT * FROM book2_table;
Empty set (0.00 sec)
mysql> INSERT INTO book2_table VALUES (10001,'TowPeace','三田英一郎', 420, 1);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book2_table VALUES (10002,'名探偵金田二','青山ふみや', 460, 1);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book2_table VALUES (20001,'坊ちゃま','冬目漱石', 460, 1);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book2_table VALUES (30001,'西方見聞録','不明', 1000, 1);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book2_table VALUES (40010,'吾輩は犬である','冬目漱石', 420, 1);
Query OK, 1 row affected (0.01 sec)
mysql> SELECT * FROM book2_table;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 10001 | TowPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 20001 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 30001 | 西方見聞録 | 不明 | 1000 | 1 |
| 40010 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
5 rows in set (0.00 sec)
mysql> SELECT book_name,author_name FROM book2_table;
+----------------+-------------+
| book_name | author_name |
+----------------+-------------+
| TowPeace | 三田英一郎 |
| 名探偵金田二 | 青山ふみや |
| 坊ちゃま | 冬目漱石 |
| 西方見聞録 | 不明 |
| 吾輩は犬である | 冬目漱石 |
+----------------+-------------+
5 rows in set (0.00 sec)
mysql> UPDATE book2_table SET author_name = 'マール=コー=ポロ' WHERE book_id =30001;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> UPDATE book2_table SET sales_flag = 0 WHERE book_id =30001;
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> SELECT * FROM book2_table;
+---------+----------------+--------------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+--------------------+-------+------------+
| 10001 | TowPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 20001 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 30001 | 西方見聞録 | マール=コー=ポロ | 1000 | 0 |
| 40010 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+--------------------+-------+------------+
5 rows in set (0.00 sec)
mysql> SELECT * FROM book2_table WHERE sales_flag = 1;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 10001 | TowPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 20001 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 40010 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM book2_table WHERE author_name ='冬目漱石' AND price =420;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 40010 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
1 row in set (0.00 sec)
mysql> DELETE FROM book2_table WHERE book_id =20001;
Query OK, 1 row affected (0.01 sec)
mysql> SELECT * FROM book2_table;
+---------+----------------+--------------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+--------------------+-------+------------+
| 10001 | TowPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 30001 | 西方見聞録 | マール=コー=ポロ | 1000 | 0 |
| 40010 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+--------------------+-------+------------+
4 rows in set (0.00 sec)