DATABASE 2日目

DATABASE_Q1_hirayama;.txt

@@ -0,0 +1,204 @@
+mysql> CREATE DATABASE Q1;
+Query OK, 1 row affected (0.01 sec)
+
+mysql> SHOW DATABASEs;
++--------------------+
+| Database           |
++--------------------+
+| information_schema |
+| mysql              |
+| performance_schema |
+| q1                 |
+| rezodb             |
+| sys                |
++--------------------+
+6 rows in set (0.00 sec)
+
+mysql> CREATE USER 'rezouser'@'localhost' IDENTIFIED BY 'Rezo_0000';
+ERROR 1396 (HY000): Operation CREATE USER failed for 'rezouser'@'localhost'
+mysql> USE Q1;
+Database changed
+mysql> SHOW DATABASEs;
++--------------------+
+| Database           |
++--------------------+
+| information_schema |
+| mysql              |
+| performance_schema |
+| q1                 |
+| rezodb             |
+| sys                |
++--------------------+
+6 rows in set (0.01 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 (0.03 sec)
+
+mysql> SELECT * FROM q1;
+ERROR 1146 (42S02): Table 'q1.q1' doesn't exist
+mysql> SHOW tables;
++--------------+
+| Tables_in_q1 |
++--------------+
+| book_table   |
++--------------+
+1 row in set (0.00 sec)
+
+mysql> users;
+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 'users' at line 1
+mysql> DESCRIBE users;
+ERROR 1146 (42S02): Table 'q1.users' doesn't exist
+mysql> DESCRIBE book_table;
++-------------+-------------+------+-----+---------+-------+
+| Field       | Type        | Null | Key | Default | Extra |
++-------------+-------------+------+-----+---------+-------+
+| book_id     | int         | YES  |     | NULL    |       |
+| book_name   | varchar(50) | YES  |     | NULL    |       |
+| author_name | varchar(50) | YES  |     | NULL    |       |
+| price       | int         | YES  |     | NULL    |       |
+| sales_flag  | int         | YES  |     | NULL    |       |
++-------------+-------------+------+-----+---------+-------+
+5 rows in set (0.01 sec)
+
+mysql> SELECT * FROM book_table;
+Empty set (0.00 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 (0.00 sec)
+
+mysql> SHOW tables;
++--------------+
+| Tables_in_q1 |
++--------------+
+| book_table   |
++--------------+
+1 row in set (0.00 sec)
+
+mysql> SHOW book_table;
+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 'book_table' at line 1
+mysql> SELECT * FROM book_table;
++---------+-----------+-------------+-------+------------+
+| book_id | book_name | author_name | price | sales_flag |
++---------+-----------+-------------+-------+------------+
+|   10001 | TwoPeace  | 三田英一郎  |   420 |          1 |
++---------+-----------+-------------+-------+------------+
+1 row in set (0.00 sec)
+
+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 (20001, '坊ちゃま', '冬目漱岩', 460, 1);
+Query OK, 1 row affected (0.01 sec)
+
+mysql> INSERT INTO book_table VALUES (30001, '西方見聞録', '不明', 1000, 1);
+Query OK, 1 row affected (0.01 sec)
+
+mysql> INSERT INTO book_table VALUES (40010, '吾輩は犬である', '冬目漱岩', 420, 1);
+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 |
+|   20001 | 坊ちゃま       | 冬目漱岩    |   460 |          1 |
+|   30001 | 西方見聞録     | 不明        |  1000 |          1 |
+|   40010 | 吾輩は犬である | 冬目漱岩    |   420 |          1 |
++---------+----------------+-------------+-------+------------+
+5 rows in set (0.00 sec)
+
+mysql> SELECT * FLOM book_table WHERE book_name and author_name;
+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 'FLOM book_table WHERE book_name and author_name' at line 1
+mysql> SELECT * FLOM book_table WHERE book_name AND author_name;
+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 'FLOM book_table WHERE book_name AND author_name' at line 1
+mysql> SELECT * FLOM book_table WHERE book_name AND author_name;
+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 'FLOM book_table WHERE book_name AND author_name' at line 1
+mysql> SELECT book_id,author_name;
+ERROR 1054 (42S22): Unknown column 'book_id' in 'field list'
+mysql> SELECT * FLOM 'book_table' WHERE CONCAT(book_name, author_name);
+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 'FLOM 'book_table' WHERE CONCAT(book_name, author_name)' at line 1
+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       | 冬目漱岩    |
+| 西方見聞録     | 不明        |
+| 吾輩は犬である | 冬目漱岩    |
++----------------+-------------+
+5 rows in set (0.00 sec)
+
+mysql> UPDATE book_table set book_id = 30001 set author_name = 'マール＝コー＝ポロ' set sales_flag = 0 WHERE book_name = '西方見聞録';
+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 author_name = 'マール＝コー＝ポロ' set sales_flag = 0 WHERE book_na' at line 1
+mysql> UPDATE book_table set book_id = 30001, author_name = 'マール＝コー＝ポロ', sales_flag = 0 WHERE book_name = '西方見聞録';
+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 |
+|   20001 | 坊ちゃま       | 冬目漱岩           |   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 | 冬目漱岩           |   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 |
+|   20001 | 坊ちゃま       | 冬目漱岩    |   460 |          1 |
+|   40010 | 吾輩は犬である | 冬目漱岩    |   420 |          1 |
++---------+----------------+-------------+-------+------------+
+4 rows in set (0.00 sec)
+
+mysql> SELECT * FROM book_table WHERE book_name = '冬目漱岩' AND price = 420;
+Empty set (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 |
+|   20001 | 坊ちゃま       | 冬目漱岩           |   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 | 冬目漱岩           |   420 |          1 |
++---------+----------------+--------------------+-------+------------+
+5 rows in set (0.00 sec)
+
+mysql> SELECT * FROM book_table WHERE book_name = '冬目漱岩' AND price = 420;
+Empty set (0.00 sec)
+
+mysql> SELECT book_table WHERE book_name = '冬目漱岩' AND price = 420;
+ERROR 1054 (42S22): Unknown column 'book_table' in 'field list'
+mysql> SELECT * FROM book_table WHERE author_name = '冬目漱岩' AND price = 420;
++---------+----------------+-------------+-------+------------+
+| book_id | book_name      | author_name | price | sales_flag |
++---------+----------------+-------------+-------+------------+
+|   40010 | 吾輩は犬である | 冬目漱岩    |   420 |          1 |
++---------+----------------+-------------+-------+------------+
+1 row in set (0.00 sec)
+
+mysql> DELETE FROM book_table WHERE book_id = 20001;
+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 |
+|   30001 | 西方見聞録     | マール＝コー＝ポロ |  1000 |          0 |
+|   40010 | 吾輩は犬である | 冬目漱岩           |   420 |          1 |
++---------+----------------+--------------------+-------+------------+
+4 rows in set (0.00 sec)

DATABASE_Q2_2_hirayama.txt

@@ -0,0 +1,65 @@
+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 | 原始肉                 |   2500 |           3 |
+|       4 | 魅惑の椅子             | 100000 |           1 |
++---------+------------------------+--------+-------------+
+4 rows in set (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)
+
+mysql> SELECT * FROM items INNER JOIN item_category USING(category_id) ORDER BY price;
++-------------+---------+------------------------+--------+---------------+
+| category_id | item_id | name                   | price  | category_name |
++-------------+---------+------------------------+--------+---------------+
+|           2 |       2 | げーたるーど2000 500ml |    370 | 飲料          |
+|           3 |       3 | 原始肉                 |   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 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)
+
+mysql> SELECT COUNT(*) FROM items;
++----------+
+| COUNT(*) |
++----------+
+|        4 |
++----------+
+1 row in set (0.00 sec)
+
+mysql> SELECT COUNT(*) AS data_count FROM items;
++------------+
+| data_count |
++------------+
+|          4 |
++------------+
+1 row in set (0.00 sec)
+

DATABASE_Q2_hirayama;.txt

@@ -0,0 +1,253 @@
+mysql> SHOW databases;
++--------------------+
+| Database           |
++--------------------+
+| information_schema |
+| mysql              |
+| performance_schema |
+| q1                 |
+| rezodb             |
+| sys                |
++--------------------+
+6 rows in set (0.01 sec)
+
+mysql> CREATE DATABASE Q2;
+Query OK, 1 row affected (0.02 sec)
+
+mysql> SHOW databases;
++--------------------+
+| Database           |
++--------------------+
+| information_schema |
+| mysql              |
+| performance_schema |
+| q1                 |
+| q2                 |
+| rezodb             |
+| sys                |
++--------------------+
+7 rows in set (0.00 sec)
+
+mysql> USE q2;
+Database changed
+mysql> SHOW tables;
+Empty 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> SELECT * FROM item_category;
+Empty set (0.00 sec)
+
+mysql> CREATE TABLE items(item_id INT, name VARCHAR(256), price INT, category_id INT);
+Query OK, 0 rows affected (0.03 sec)
+
+mysql> SELECT * FROM item_category;
+Empty set (0.00 sec)
+
+mysql> INSERT INTO item_category VALUES(1, '家具'), (2, '飲料'), (3, '食品');
+Query OK, 3 rows affected (0.01 sec)
+Records: 3  Duplicates: 0  Warnings: 0
+
+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> SELECT * FROM item;
+ERROR 1146 (42S02): Table 'q2.item' doesn't exist
+mysql> SELECT * FROM items;
+Empty set (0.00 sec)
+
+mysql> INSERT INTO items VALUES(1, 'ローマのテーブル', 150000, 1), (2, 'げーたるーど2000 500ml', 370, 2), (3, '原始肉' 2500, 3), (4, '魅惑の椅子' 100000, 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 '2500, 3), (4, '魅惑の椅子' 100000, 1)' at line 1
+mysql> INSERT INTO items VALUES(1, 'ローマのテーブル', 150000, 1), (2, 'げーたるーど2000 500ml', 370, 2), (3, '原始肉', 2500, 3), (4, '魅惑の椅子' 100000, 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 '100000, 1)' at line 1
+mysql> INSERT INTO items VALUES(1, 'ローマのテーブル', 150000, 1), (2, 'げーたるーど2000 500ml', 370, 2), (3, '原始肉', 2500, 3), (4, '魅惑の椅子', 100000, 1);
+Query OK, 4 rows affected (0.00 sec)
+Records: 4  Duplicates: 0  Warnings: 0
+
+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 | 原始肉                 |   2500 |           3 |
+|       4 | 魅惑の椅子             | 100000 |           1 |
++---------+------------------------+--------+-------------+
+4 rows in set (0.00 sec)
+
+mysql> SELECT * FROM items, item_category;
++---------+------------------------+--------+-------------+-------------+---------------+
+| item_id | name                   | price  | category_id | category_id | category_name |
++---------+------------------------+--------+-------------+-------------+---------------+
+|       1 | ローマのテーブル       | 150000 |           1 |           3 | 食品          |
+|       1 | ローマのテーブル       | 150000 |           1 |           2 | 飲料          |
+|       1 | ローマのテーブル       | 150000 |           1 |           1 | 家具          |
+|       2 | げーたるーど2000 500ml |    370 |           2 |           3 | 食品          |
+|       2 | げーたるーど2000 500ml |    370 |           2 |           2 | 飲料          |
+|       2 | げーたるーど2000 500ml |    370 |           2 |           1 | 家具          |
+|       3 | 原始肉                 |   2500 |           3 |           3 | 食品          |
+|       3 | 原始肉                 |   2500 |           3 |           2 | 飲料          |
+|       3 | 原始肉                 |   2500 |           3 |           1 | 家具          |
+|       4 | 魅惑の椅子             | 100000 |           1 |           3 | 食品          |
+|       4 | 魅惑の椅子             | 100000 |           1 |           2 | 飲料          |
+|       4 | 魅惑の椅子             | 100000 |           1 |           1 | 家具          |
++---------+------------------------+--------+-------------+-------------+---------------+
+12 rows in set (0.00 sec)
+
+mysql> SELECT * FROM items JOIN item_category;
++---------+------------------------+--------+-------------+-------------+---------------+
+| item_id | name                   | price  | category_id | category_id | category_name |
++---------+------------------------+--------+-------------+-------------+---------------+
+|       1 | ローマのテーブル       | 150000 |           1 |           3 | 食品          |
+|       1 | ローマのテーブル       | 150000 |           1 |           2 | 飲料          |
+|       1 | ローマのテーブル       | 150000 |           1 |           1 | 家具          |
+|       2 | げーたるーど2000 500ml |    370 |           2 |           3 | 食品          |
+|       2 | げーたるーど2000 500ml |    370 |           2 |           2 | 飲料          |
+|       2 | げーたるーど2000 500ml |    370 |           2 |           1 | 家具          |
+|       3 | 原始肉                 |   2500 |           3 |           3 | 食品          |
+|       3 | 原始肉                 |   2500 |           3 |           2 | 飲料          |
+|       3 | 原始肉                 |   2500 |           3 |           1 | 家具          |
+|       4 | 魅惑の椅子             | 100000 |           1 |           3 | 食品          |
+|       4 | 魅惑の椅子             | 100000 |           1 |           2 | 飲料          |
+|       4 | 魅惑の椅子             | 100000 |           1 |           1 | 家具          |
++---------+------------------------+--------+-------------+-------------+---------------+
+12 rows in set (0.00 sec)
+
+mysql> SELECT item_category.category_id, items.item_id, items.name, items.price, item_category.name FROM item_category INNER JOIN items ON item_category.category_id;
+ERROR 1054 (42S22): Unknown column 'item_category.name' in 'field list'
+mysql> SELECT item_category.category_id, items.item_id, items.name, items.price, item_category.name FROM item_category INNER JOIN items ON item_category.category_id = item_category.category_id;
+ERROR 1054 (42S22): Unknown column 'item_category.name' in 'field list'
+mysql> SELECT item_category.category_id, items.item_id, items.name, items.price, item_category.name FROM item_category INNER JOIN items ON item_category.category_id = items.category_id;
+ERROR 1054 (42S22): Unknown column 'item_category.name' in 'field list'
+mysql> SELECT item_category.category_id, items.item_id, items.name, items.price, item_category.name FROM item_category INNER JOIN items ON items.category_id = item_category.category_id;
+ERROR 1054 (42S22): Unknown column 'item_category.name' in 'field list'
+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 | 原始肉                 |   2500 |           3 |
+|       4 | 魅惑の椅子             | 100000 |           1 |
++---------+------------------------+--------+-------------+
+4 rows in set (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)
+
+mysql> SELECT category_id, item_id, name, price FROM items INNER JOIN item_category ON category_id = category_id;
+ERROR 1052 (23000): Column 'category_id' in field list is ambiguous
+mysql> SELECT category_id, item_id, name, price FROM items INNER JOIN item_category ON category_id = items.category_id;
+ERROR 1052 (23000): Column 'category_id' in field list is ambiguous
+mysql> SELECT category_id, item_id, name, price FROM items INNER JOIN item_category ON item_category.category_id = items.category_id;
+ERROR 1052 (23000): Column 'category_id' in field list is ambiguous
+mysql> SELECT * FROM item_category INNTER JOIN items ON item_category.category_id = items.category_item;
+ERROR 1054 (42S22): Unknown column 'item_category.category_id' in 'on clause'
+mysql> SELECT * FROM item_category INNER JOIN items ON item_category.category_id = items.category_item;
+ERROR 1054 (42S22): Unknown column 'items.category_item' in 'on clause'
+mysql> SELECT item_category.category_id as category_id, items.item_id as item_id, items.name as name, items.price as price, item_category.name as name FROM item_category INNER JOIN items ON item_category.category_id = items.category_id;
+ERROR 1054 (42S22): Unknown column 'item_category.name' in 'field list'
+mysql>
+mysql> SELECT item_category.category_id as category_id, items.item_id as item_id, items.name, items.price as price, item_category.name as name FROM item_category INNER JOIN items ON item_category.category_id = items.category_id;
+ERROR 1054 (42S22): Unknown column 'item_category.name' in 'field list'
+mysql> SHOW COLUMNS FROM
+    -> ;
+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 '' 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 | 原始肉                 |   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 | 原始肉                 |   2500 |           3 |
+|       4 | 魅惑の椅子             | 100000 |           1 |
++---------+------------------------+--------+-------------+
+4 rows in set (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)
+
+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 | 原始肉                 |   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) as ktable;
+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 ktable' at line 1
+mysql> CREATE table SELECT * FROM items INNER JOIN item_category 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 'SELECT * FROM items INNER JOIN item_category 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 | 原始肉                 |   2500 | 食品          |
+|           1 |       4 | 魅惑の椅子             | 100000 | 家具          |
++-------------+---------+------------------------+--------+---------------+
+4 rows in set (0.00 sec)
+
+mysql> SELECT * FROM category_id ORFER BY price;
+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 'BY price' 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 | 原始肉                 |   2500 | 食品          |
+|           1 |       4 | 魅惑の椅子             | 100000 | 家具          |
++-------------+---------+------------------------+--------+---------------+
+4 rows in set (0.00 sec)
+
+mysql> SELECT * FROM ORFER BY price;
+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 'BY price' at line 1
+mysql> SELECT * FROM items INNER JOIN item_category USING(category_id) ORDER BY price;
++-------------+---------+------------------------+--------+---------------+
+| category_id | item_id | name                   | price  | category_name |
++-------------+---------+------------------------+--------+---------------+
+|           2 |       2 | げーたるーど2000 500ml |    370 | 飲料          |
+|           3 |       3 | 原始肉                 |   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)