Question2 完了しました

【練習問題】 SQL/Question1/MySQL 8.0 Command Line Client.txt

@@ -0,0 +1,169 @@
+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>

【練習問題】 SQL/Question1/MySQL SQL問題集 part１.txt

@@ -1,96 +0,0 @@
-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)

【練習問題】 SQL/Question2/【+α】ER図/MySQL 8.0 Command Line Client.txt

@@ -0,0 +1,391 @@
+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>