5 Commits

Author SHA1 Message Date
c7616bbc66 +α 2 (3) 2026-09-29 15:28:39 +09:00
7ab239ca2d Q3 2026-09-28 17:02:40 +09:00
87759938c2 +alphure no 2 2026-09-28 17:02:16 +09:00
8447f34aa5 Question 2 Done 2026-09-28 13:01:36 +09:00
89f52f44b0 Question1 2026-09-28 11:30:37 +09:00
7 changed files with 223 additions and 560 deletions

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@@ -1,169 +0,0 @@
Enter password: *********
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 13
Server version: 8.0.32 MySQL Community Server - GPL
Copyright (c) 2000, 2023, Oracle and/or its affiliates.
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 DATABASE();
+------------+
| DATABASE() |
+------------+
| rezodb |
+------------+
1 row in set (0.00 sec)
mysql> CREATE TABLE emp_table (emp_no INT, emp_name VARCHAR(50), salary INT);
Query OK, 0 rows affected (0.03 sec)
mysql> INSERT INTO emp_table VALUES (1, '井上', 20000);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO emp_table VALUES (2, '梅田', 100000);
Query OK, 1 row affected (0.01 sec)
mysql> SELECT *FROM emp_table;
+--------+----------+--------+
| emp_no | emp_name | salary |
+--------+----------+--------+
| 1 | 井上 | 20000 |
| 2 | 梅田 | 100000 |
+--------+----------+--------+
2 rows in set (0.00 sec)
mysql> CREATE TABLE book_table (book_id INT, book_name VARCHAR(50), author_name VARCHAR(50), price INT, sales_flag INT);
Query OK, 0 rows affected (0.02 sec)
mysql> INSERT INTO book_table VALUES (10001, 'TwoPeace', '三田英一郎', 420, 1);
ERROR 1054 (42S22): Unknown column ' 420' in 'field list'
mysql> INSERT INTO book_table VALUES (10001, 'TwoPeace', '三田英一郎', 420, 1);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book_table VALUES (10002, '名探偵金田二', '青山ふみや', 460, 1);
ERROR 1054 (42S22): Unknown column ' 460' in 'field list'
mysql> INSERT INTO book_table VALUES (10002, '名探偵金田二', '青山ふみや', 460, 1);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book_table VALUES (10003, '坊ちゃま', '冬目漱石', 460, 1);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book_table VALUES (10004, '西方見聞録', '不明', 1000, 1);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book_table VALUES (10005, '吾輩は犬である', '冬目漱石', 420, 1);
Query OK, 1 row affected (0.01 sec)
mysql> SELECT * FROM book_table;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 10004 | 西方見聞録 | 不明 | 1000 | 1 |
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
5 rows in set (0.00 sec)
mysql> SELECT book_name FROM book_table;
+----------------+
| book_name |
+----------------+
| TwoPeace |
| 名探偵金田二 |
| 坊ちゃま |
| 西方見聞録 |
| 吾輩は犬である |
+----------------+
5 rows in set (0.00 sec)
mysql> SELECT book_name author_name FROM book_table;
+----------------+
| author_name |
+----------------+
| TwoPeace |
| 名探偵金田二 |
| 坊ちゃま |
| 西方見聞録 |
| 吾輩は犬である |
+----------------+
5 rows in set (0.00 sec)
mysql> SELECT book_name, author_name FROM book_table;
+----------------+-------------+
| book_name | author_name |
+----------------+-------------+
| TwoPeace | 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 book_table SET author_name = 'マール=コー=ポロ' SET sales_flag = 0 where book_id = 10004;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' SET sales_flag = 0 where book_id = 10004' at line 1
mysql> UPDATE book_table SET author_name = 'マール=コー=ポロ' where book_id = 10004;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> UPDATE book_table ]SET sales_flag = 0 where book_id = 10004;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ']SET sales_flag = 0 where book_id = 10004' at line 1
mysql> UPDATE book_table SET sales_flag = 0 where book_id = 10004;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> SELECT * FROM book_table;
+---------+----------------+--------------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+--------------------+-------+------------+
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 10004 | 西方見聞録 | マール=コー=ポロ | 1000 | 0 |
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+--------------------+-------+------------+
5 rows in set (0.00 sec)
mysql> SELECT * FROM book_table where sales_flag = 1;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM book_table where author_name = '冬目漱石' AND price = 420;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' AND price = 420' at line 1
mysql> SELECT * FROM book_table where author_name = '冬目漱石' AND price = 420;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
1 row in set (0.00 sec)
mysql> DELETE FROM book_table WHERE book_id = 10003;
Query OK, 1 row affected (0.00 sec)
mysql> SELECT * FROM book_table;
+---------+----------------+--------------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+--------------------+-------+------------+
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 10004 | 西方見聞録 | マール=コー=ポロ | 1000 | 0 |
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+--------------------+-------+------------+
4 rows in set (0.00 sec)
mysql>

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@@ -0,0 +1,23 @@
問1
テーブル作成
CREATE TABLE book_table (book_id INT, book_name VARCHAR(50), author_name VARCHAR(50), price INT, sales_flag INT);
問2
INSERT INTO book_table VALUES (10001, 'TwoPeace', '三田英一郎', 420,1);
INSERT INTO book_table VALUES (10002, '名探偵金田二', '青山ふみや', 460,1);
INSERT INTO book_table VALUES (20001, '坊ちゃま', '冬目漱岩', 460,1);
INSERT INTO book_table VALUES (30001, '西方見聞録', '不明', 1000,1);
INSERT INTO book_table VALUES (40010, '吾輩は犬である', '冬目漱岩', 420,1);
問3
SELECT book_name , author_name FROM book_table;
問4
UPDATE book_table SET sales_flag= 0 WHERE book_id =30001;
問5
SELECT * FROM book_table WHERE sales_flag LIKE '%1%';
問6
SELECT * FROM book_table WHERE author_name = '冬目漱岩' AND price = 420;
問7
DELETE FROM book_table WHERE book_id = 20001;

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@@ -0,0 +1,68 @@
問題1
mysql> SELECT
-> i.item_id,
-> i.name AS item_name,
-> i.price,
-> c.name AS category_name
-> FROM items i
-> INNER JOIN item_category c ON i.category_id = c.category_id
-> ORDER BY i.item_id;
+---------+------------------------+--------+---------------+
| item_id | item_name | price | category_name |
+---------+------------------------+--------+---------------+
| 1 | ローマのテーブル | 150000 | 家具 |
| 2 | げーたるーど2000 500ml | 370 | 飲料 |
| 3 | 原始肉 | 2500 | 食品 |
| 4 | 魅惑の椅子 | 100000 | 家具 |
| 5 | 十八茶 600ml | 110 | 家具 |
| 6 | いい匂いのするドリアン | 5000 | 食品 |
| 7 | 太平洋の水 550ml | 300 | 飲料 |
| 8 | ひたすら膨らむガム | 200 | 食品 |
| 9 | 人をだめにするソファー | 10000 | 家具 |
| 10 | 人を虜にする名酒 | 20000 | 飲料 |
| 11 | 新鮮キャベツ | 1000 | 食品 |
+---------+------------------------+--------+---------------+
11 rows in set (0.00 sec)
問題2
mysql> SELECT
-> o.order_id AS '注文ID',
-> o.order_time AS '注文日時',
-> u.name AS 'ユーザ名',
-> i.name AS '商品名',
-> i.price AS '価格',
-> oi.quantity AS '数量'
-> FROM orders o
-> INNER JOIN users u ON o.user_id = u.user_id
-> INNER JOIN order_items oi ON o.order_id = oi.order_id
-> INNER JOIN items i ON oi.item_id = i.item_id
-> ORDER BY o.order_id, i.item_id;
+--------+---------------------+----------+------------------------+--------+------+
| 注文ID | 注文日時 | ユーザ名 | 商品名 | 価格 | 数量 |
+--------+---------------------+----------+------------------------+--------+------+
| 1 | 2015-02-22 12:00:00 | 三浦知一 | げーたるーど2000 500ml | 370 | 1 |
| 1 | 2015-02-22 12:00:00 | 三浦知一 | いい匂いのするドリアン | 5000 | 10 |
| 1 | 2015-02-22 12:00:00 | 三浦知一 | 太平洋の水 550ml | 300 | 1 |
| 1 | 2015-02-22 12:00:00 | 三浦知一 | 新鮮キャベツ | 1000 | 10 |
| 2 | 2015-12-01 15:30:00 | 本田啓介 | 魅惑の椅子 | 100000 | 1 |
| 3 | 2018-03-20 18:45:00 | 柴崎学 | 人をだめにするソファー | 10000 | 1 |
| 4 | 2018-05-11 11:28:00 | 遠藤保 | 太平洋の水 550ml | 300 | 1 |
| 4 | 2018-05-11 11:28:00 | 遠藤保 | ひたすら膨らむガム | 200 | 1 |
| 5 | 2018-09-30 10:50:00 | 花川真司 | げーたるーど2000 500ml | 370 | 7 |
| 5 | 2018-09-30 10:50:00 | 花川真司 | 原始肉 | 2500 | 5 |
| 5 | 2018-09-30 10:50:00 | 花川真司 | 十八茶 600ml | 110 | 1 |
| 5 | 2018-09-30 10:50:00 | 花川真司 | 太平洋の水 550ml | 300 | 1 |
| 5 | 2018-09-30 10:50:00 | 花川真司 | 人を虜にする名酒 | 20000 | 1 |
| 5 | 2018-09-30 10:50:00 | 花川真司 | 新鮮キャベツ | 1000 | 5 |
| 6 | 2018-09-12 20:13:00 | 三浦知一 | ひたすら膨らむガム | 200 | 10 |
| 7 | 2018-09-15 21:34:00 | 本田啓介 | 魅惑の椅子 | 100000 | 2 |
| 8 | 2019-05-06 16:00:00 | 三浦知一 | ローマのテーブル | 150000 | 1 |
| 8 | 2019-05-06 16:00:00 | 三浦知一 | 人をだめにするソファー | 10000 | 1 |
| 9 | 2019-12-20 10:39:00 | 柴崎学 | 原始肉 | 2500 | 4 |
| 9 | 2019-12-20 10:39:00 | 柴崎学 | 十八茶 600ml | 110 | 2 |
| 9 | 2019-12-20 10:39:00 | 柴崎学 | ひたすら膨らむガム | 200 | 10 |
| 10 | 2020-01-01 14:11:00 | 遠藤保 | ローマのテーブル | 150000 | 2 |
| 10 | 2020-01-01 14:11:00 | 遠藤保 | 人を虜にする名酒 | 20000 | 2 |
+--------+---------------------+----------+------------------------+--------+------+
23 rows in set (0.00 sec)

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@@ -0,0 +1,132 @@
問題1
mysql> CREATE TABLE item_category (
-> category_id INT AUTO_INCREMENT PRIMARY KEY,
-> category_name VARCHAR(256) NOT NULL
-> );
Query OK, 0 rows affected (0.03 sec)
mysql> INSERT INTO item_category ('家具');
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''家具')' at line 1
mysql> ^C
mysql>
mysql> INSERT INTO item_category (category_name) VALUES ('家具');
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO item_category (category_name) VALUES ('飲料');
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO item_category (category_name) VALUES ('食品');
Query OK, 1 row affected (0.00 sec)
mysql> SELECT * FROM item_category;
+-------------+---------------+
| category_id | category_name |
+-------------+---------------+
| 1 | 家具 |
| 2 | 飲料 |
| 3 | 食品 |
+-------------+---------------+
3 rows in set (0.00 sec)
問題2
CREATE TABLE items ( item_id INT AUTO_INCREMENT PRIMARY KEY, name VARCHAR(256), price INT, category_id INT, FOREIGN KEY (category_id) REFERENCES item_category(category_id));
INSERT INTO items (name, price, category_id)
-> VALUES ('ローマのテーブル', 150000, 1);
INSERT INTO items (name, price, category_id) VALUES ('げーたるど2000 500 ml', 370, 2);
mysql> INSERT INTO items (name, price, category_id) VALUES ('原始肉', 2500, 3);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO items (name, price, category_id) VALUES ('魅惑の橋子', 100000, 1);
Query OK, 1 row affected (0.00 sec)
問題3
SELECT * FROM items JOIN item_category USING (category_id);
+-------------+---------+-----------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+-----------------------+--------+---------------+
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
| 1 | 4 | 魅惑の橋子 | 100000 | 家具 |
| 2 | 2 | げーたるど2000 500 ml | 370 | 飲料 |
| 3 | 3 | 原始肉 | 2500 | 食品 |
+-------------+---------+-----------------------+--------+---------------+
4 rows in set (0.00 sec)
問題4
SELECT *
FROM items
JOIN item_category USING (category_id)
ORDER BY price ASC;
+-------------+---------+-----------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+-----------------------+--------+---------------+
| 2 | 2 | げーたるど2000 500 ml | 370 | 飲料 |
| 3 | 3 | 原始肉 | 2500 | 食品 |
| 1 | 4 | 魅惑の橋子 | 100000 | 家具 |
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
+-------------+---------+-----------------------+--------+---------------+
4 rows in set (0.00 sec)
問題5
SELECT * FROM items JOIN item_category USING (category_id) WHERE category_name = '家具';
+-------------+---------+------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+------------------+--------+---------------+
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
| 1 | 4 | 魅惑の橋子 | 100000 | 家具 |
+-------------+---------+------------------+--------+---------------+
2 rows in set (0.00 sec)
問題 6
mysql> SELECT * FROM items JOIN item_category USING (category_id) WHERE price BETWEEN 1000 AND 50000;
+-------------+---------+--------+-------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+--------+-------+---------------+
| 3 | 3 | 原始肉 | 2500 | 食品 |
+-------------+---------+--------+-------+---------------+
1 row in set (0.00 sec)
問題7
mysql> SELECT COUNT(*) AS total_items FROM items;
+-------------+
| total_items |
+-------------+
| 4 |
+-------------+
1 row in set (0.00 sec)
問題8
mysql> SELECT * FROM items WHERE price = (SELECT MAX(price) FROM items);
+---------+------------------+--------+-------------+
| item_id | name | price | category_id |
+---------+------------------+--------+-------------+
| 1 | ローマのテーブル | 150000 | 1 |
+---------+------------------+--------+-------------+
1 row in set (0.00 sec)
問題9
mysql> SELECT * FROM items WHERE name LIKE '%の%';
+---------+------------------+--------+-------------+
| item_id | name | price | category_id |
+---------+------------------+--------+-------------+
| 1 | ローマのテーブル | 150000 | 1 |
| 4 | 魅惑の橋子 | 100000 | 1 |
+---------+------------------+--------+-------------+
2 rows in set (0.00 sec)

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@@ -1,391 +0,0 @@
Enter password: *********
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 13
Server version: 8.0.32 MySQL Community Server - GPL
Copyright (c) 2000, 2023, Oracle and/or its affiliates.
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 DATABASE();
+------------+
| DATABASE() |
+------------+
| rezodb |
+------------+
1 row in set (0.00 sec)
mysql> CREATE TABLE emp_table (emp_no INT, emp_name VARCHAR(50), salary INT);
Query OK, 0 rows affected (0.03 sec)
mysql> INSERT INTO emp_table VALUES (1, '井上', 20000);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO emp_table VALUES (2, '梅田', 100000);
Query OK, 1 row affected (0.01 sec)
mysql> SELECT *FROM emp_table;
+--------+----------+--------+
| emp_no | emp_name | salary |
+--------+----------+--------+
| 1 | 井上 | 20000 |
| 2 | 梅田 | 100000 |
+--------+----------+--------+
2 rows in set (0.00 sec)
mysql> CREATE TABLE book_table (book_id INT, book_name VARCHAR(50), author_name VARCHAR(50), price INT, sales_flag INT);
Query OK, 0 rows affected (0.02 sec)
mysql> INSERT INTO book_table VALUES (10001, 'TwoPeace', '三田英一郎', 420, 1);
ERROR 1054 (42S22): Unknown column ' 420' in 'field list'
mysql> INSERT INTO book_table VALUES (10001, 'TwoPeace', '三田英一郎', 420, 1);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book_table VALUES (10002, '名探偵金田二', '青山ふみや', 460, 1);
ERROR 1054 (42S22): Unknown column ' 460' in 'field list'
mysql> INSERT INTO book_table VALUES (10002, '名探偵金田二', '青山ふみや', 460, 1);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book_table VALUES (10003, '坊ちゃま', '冬目漱石', 460, 1);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO book_table VALUES (10004, '西方見聞録', '不明', 1000, 1);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO book_table VALUES (10005, '吾輩は犬である', '冬目漱石', 420, 1);
Query OK, 1 row affected (0.01 sec)
mysql> SELECT * FROM book_table;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 10004 | 西方見聞録 | 不明 | 1000 | 1 |
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
5 rows in set (0.00 sec)
mysql> SELECT book_name FROM book_table;
+----------------+
| book_name |
+----------------+
| TwoPeace |
| 名探偵金田二 |
| 坊ちゃま |
| 西方見聞録 |
| 吾輩は犬である |
+----------------+
5 rows in set (0.00 sec)
mysql> SELECT book_name author_name FROM book_table;
+----------------+
| author_name |
+----------------+
| TwoPeace |
| 名探偵金田二 |
| 坊ちゃま |
| 西方見聞録 |
| 吾輩は犬である |
+----------------+
5 rows in set (0.00 sec)
mysql> SELECT book_name, author_name FROM book_table;
+----------------+-------------+
| book_name | author_name |
+----------------+-------------+
| TwoPeace | 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 book_table SET author_name = 'マール=コー=ポロ' SET sales_flag = 0 where book_id = 10004;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' SET sales_flag = 0 where book_id = 10004' at line 1
mysql> UPDATE book_table SET author_name = 'マール=コー=ポロ' where book_id = 10004;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> UPDATE book_table ]SET sales_flag = 0 where book_id = 10004;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ']SET sales_flag = 0 where book_id = 10004' at line 1
mysql> UPDATE book_table SET sales_flag = 0 where book_id = 10004;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> SELECT * FROM book_table;
+---------+----------------+--------------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+--------------------+-------+------------+
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 10004 | 西方見聞録 | マール=コー=ポロ | 1000 | 0 |
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+--------------------+-------+------------+
5 rows in set (0.00 sec)
mysql> SELECT * FROM book_table where sales_flag = 1;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM book_table where author_name = '冬目漱石' AND price = 420;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' AND price = 420' at line 1
mysql> SELECT * FROM book_table where author_name = '冬目漱石' AND price = 420;
+---------+----------------+-------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+-------------+-------+------------+
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+-------------+-------+------------+
1 row in set (0.00 sec)
mysql> DELETE FROM book_table WHERE book_id = 10003;
Query OK, 1 row affected (0.00 sec)
mysql> SELECT * FROM book_table;
+---------+----------------+--------------------+-------+------------+
| book_id | book_name | author_name | price | sales_flag |
+---------+----------------+--------------------+-------+------------+
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
| 10004 | 西方見聞録 | マール=コー=ポロ | 1000 | 0 |
| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
+---------+----------------+--------------------+-------+------------+
4 rows in set (0.00 sec)
mysql> CREATE TABLE item_category (category_id INT, category_name VARCHAR(256));
Query OK, 0 rows affected (0.03 sec)
mysql> INSERT INTO item_category (1, '家具');
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1, '家具')' at line 1
mysql> INSERT INTO item_category (1, '家具');
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '1, '家具')' at line 1
mysql> INSERT INTO item_category VALUES (1, '家具');
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO item_category VALUES (2, '飲料');
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO item_category VALUES (3, '食品');
Query OK, 1 row affected (0.00 sec)
mysql> SELECT * FROM item_table
-> ^C
mysql> SELECT * FROM item_table;
ERROR 1146 (42S02): Table 'rezodb.item_table' doesn't exist
mysql> SELECT * FROM item_category;
+-------------+---------------+
| category_id | category_name |
+-------------+---------------+
| 1 | 家具 |
| 2 | 飲料 |
| 3 | 食品 |
+-------------+---------------+
3 rows in set (0.00 sec)
mysql> CREATE TABLE items(item_id INT, name VARCHAR(256), price INT, category_id INT);
Query OK, 0 rows affected (0.02 sec)
mysql> INSERT INTO items VALUES (1, 'ローマのテーブル' 150000, 1);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' 150000, 1)' at line 1
mysql> INSERT INTO items VALUES (1, 'ローマのテーブル', 150000, 1);
Query OK, 1 row affected (0.00 sec)
mysql> INSERT INTO items VALUES (2, 'げーたるーど2000 500ml', 370, 2);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO items VALUES (3, '原子肉', 2500, 3);
Query OK, 1 row affected (0.01 sec)
mysql> INSERT INTO items VALUES (4, '魅惑の椅子', 100000, 1);
Query OK, 1 row affected (0.01 sec)
mysql> SELECT * FROM item;
ERROR 1146 (42S02): Table 'rezodb.item' doesn't exist
mysql> SELECT * FROM items;
+---------+------------------------+--------+-------------+
| item_id | name | price | category_id |
+---------+------------------------+--------+-------------+
| 1 | ローマのテーブル | 150000 | 1 |
| 2 | げーたるーど2000 500ml | 370 | 2 |
| 3 | 原子肉 | 2500 | 3 |
| 4 | 魅惑の椅子 | 100000 | 1 |
+---------+------------------------+--------+-------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM item_category INNER JOIN item ON item_category.category_id = item.category_id;
ERROR 1146 (42S02): Table 'rezodb.item' doesn't exist
mysql> SELECT * FROM item_category INNER JOIN item ON item_category.category_id = items.category_id;
ERROR 1146 (42S02): Table 'rezodb.item' doesn't exist
mysql> SELECT * FROM item_category INNER JOIN items ON item_category.category_id = items.category_id;
+-------------+---------------+---------+------------------------+--------+-------------+
| category_id | category_name | item_id | name | price | category_id |
+-------------+---------------+---------+------------------------+--------+-------------+
| 1 | 家具 | 1 | ローマのテーブル | 150000 | 1 |
| 2 | 飲料 | 2 | げーたるーど2000 500ml | 370 | 2 |
| 3 | 食品 | 3 | 原子肉 | 2500 | 3 |
| 1 | 家具 | 4 | 魅惑の椅子 | 100000 | 1 |
+-------------+---------------+---------+------------------------+--------+-------------+
4 rows in set (0.00 sec)
mysql> SELECT item.category.category_id AS items.category_id FROM item_category INNER JOIN item ON item_category.category_id = items.category_id;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '.category_id FROM item_category INNER JOIN item ON item_category.category_id = i' at line 1
mysql> SELECT * FROM item_category INNER JOIN items ON item_category.category_id = items.category_id;
+-------------+---------------+---------+------------------------+--------+-------------+
| category_id | category_name | item_id | name | price | category_id |
+-------------+---------------+---------+------------------------+--------+-------------+
| 1 | 家具 | 1 | ローマのテーブル | 150000 | 1 |
| 2 | 飲料 | 2 | げーたるーど2000 500ml | 370 | 2 |
| 3 | 食品 | 3 | 原子肉 | 2500 | 3 |
| 1 | 家具 | 4 | 魅惑の椅子 | 100000 | 1 |
+-------------+---------------+---------+------------------------+--------+-------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM item_category INNER JOIN items ON USING (category_id);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'USING (category_id)' at line 1
mysql> SELECT * FROM item_category INNER JOIN items ON USING (category_id);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'USING (category_id)' at line 1
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id);
+-------------+---------+------------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+------------------------+--------+---------------+
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
| 2 | 2 | げーたるーど2000 500ml | 370 | 飲料 |
| 3 | 3 | 原子肉 | 2500 | 食品 |
| 1 | 4 | 魅惑の椅子 | 100000 | 家具 |
+-------------+---------+------------------------+--------+---------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM items;
+---------+------------------------+--------+-------------+
| item_id | name | price | category_id |
+---------+------------------------+--------+-------------+
| 1 | ローマのテーブル | 150000 | 1 |
| 2 | げーたるーど2000 500ml | 370 | 2 |
| 3 | 原子肉 | 2500 | 3 |
| 4 | 魅惑の椅子 | 100000 | 1 |
+---------+------------------------+--------+-------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) OEDER BY price ASC;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'OEDER BY price ASC' at line 1
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) ORDER BY price ASC;
+-------------+---------+------------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+------------------------+--------+---------------+
| 2 | 2 | げーたるーど2000 500ml | 370 | 飲料 |
| 3 | 3 | 原子肉 | 2500 | 食品 |
| 1 | 4 | 魅惑の椅子 | 100000 | 家具 |
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
+-------------+---------+------------------------+--------+---------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE category_name = '家具';
+-------------+---------+------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+------------------+--------+---------------+
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
| 1 | 4 | 魅惑の椅子 | 100000 | 家具 |
+-------------+---------+------------------+--------+---------------+
2 rows in set (0.00 sec)
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE price > 1000 AND price < 50000;
+-------------+---------+--------+-------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+--------+-------+---------------+
| 3 | 3 | 原子肉 | 2500 | 食品 |
+-------------+---------+--------+-------+---------------+
1 row in set (0.00 sec)
mysql> SELECT COUNT (*) AS data_count from items;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*) AS data_count from items' at line 1
mysql> SELECT COUNT () AS data_count from items;
ERROR 1630 (42000): FUNCTION rezodb.COUNT does not exist. Check the 'Function Name Parsing and Resolution' section in the Reference Manual
mysql> SELECT COUNT (*) AS data_count from items;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*) AS data_count from items' at line 1
mysql> SELECT COUNT (*) AS data_count FROM items;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*) AS data_count FROM items' at line 1
mysql> SELECT COUNT (*) FROM items;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '*) FROM items' at line 1
mysql> SELECT COUNT(*) FROM items;
+----------+
| COUNT(*) |
+----------+
| 4 |
+----------+
1 row in set (0.01 sec)
mysql> SELECT COUNT(*) AS data_count FROM items;
+------------+
| data_count |
+------------+
| 4 |
+------------+
1 row in set (0.00 sec)
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) s
-> ^C
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE score = MIN (score)
-> ^C
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE score = MIN (score);
ERROR 1054 (42S22): Unknown column 'score' in 'where clause'
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE score = (MIN (score) FROM items);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM items)' at line 1
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE score = (MIN(score) FROM items);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM items)' at line 1
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE score = (MAX(price) FROM items);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM items)' at line 1
mysql> mysql> SELECT * FROM items WHERE price = (SELECT MAX(price) FROM items);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'mysql> SELECT * FROM items WHERE price = (SELECT MAX(price) FROM items)' at line 1
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id);
+-------------+---------+------------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+------------------------+--------+---------------+
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
| 2 | 2 | げーたるーど2000 500ml | 370 | 飲料 |
| 3 | 3 | 原子肉 | 2500 | 食品 |
| 1 | 4 | 魅惑の椅子 | 100000 | 家具 |
+-------------+---------+------------------------+--------+---------------+
4 rows in set (0.00 sec)
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE price = (MAX(price) FROM items);
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM items)' at line 1
mysql> SELECT * FROM items WHERE price = (SELECT MAX(price) FROM items);
+---------+------------------+--------+-------------+
| item_id | name | price | category_id |
+---------+------------------+--------+-------------+
| 1 | ローマのテーブル | 150000 | 1 |
+---------+------------------+--------+-------------+
1 row in set (0.00 sec)
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE price = (SELECT MAX(price) FROM items);
+-------------+---------+------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+------------------+--------+---------------+
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
+-------------+---------+------------------+--------+---------------+
1 row in set (0.00 sec)
mysql> SELECT * FROM items INNER JOIN item_category USING (category_id) WHERE name LIKE '%の%';
+-------------+---------+------------------+--------+---------------+
| category_id | item_id | name | price | category_name |
+-------------+---------+------------------+--------+---------------+
| 1 | 4 | 魅惑の椅子 | 100000 | 家具 |
| 1 | 1 | ローマのテーブル | 150000 | 家具 |
+-------------+---------+------------------+--------+---------------+
2 rows in set (0.00 sec)
mysql>