Compare commits
5 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| c7616bbc66 | |||
| 7ab239ca2d | |||
| 87759938c2 | |||
| 8447f34aa5 | |||
| 89f52f44b0 |
@@ -1,169 +0,0 @@
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Enter password: *********
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Welcome to the MySQL monitor. Commands end with ; or \g.
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Your MySQL connection id is 13
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Server version: 8.0.32 MySQL Community Server - GPL
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Copyright (c) 2000, 2023, Oracle and/or its affiliates.
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Oracle is a registered trademark of Oracle Corporation and/or its
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affiliates. Other names may be trademarks of their respective
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owners.
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Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
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mysql> SELECT DATABASE();
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+------------+
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| DATABASE() |
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+------------+
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| rezodb |
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+------------+
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1 row in set (0.00 sec)
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mysql> CREATE TABLE emp_table (emp_no INT, emp_name VARCHAR(50), salary INT);
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Query OK, 0 rows affected (0.03 sec)
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mysql> INSERT INTO emp_table VALUES (1, '井上', 20000);
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Query OK, 1 row affected (0.01 sec)
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mysql> INSERT INTO emp_table VALUES (2, '梅田', 100000);
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Query OK, 1 row affected (0.01 sec)
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mysql> SELECT *FROM emp_table;
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+--------+----------+--------+
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| emp_no | emp_name | salary |
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+--------+----------+--------+
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| 1 | 井上 | 20000 |
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| 2 | 梅田 | 100000 |
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+--------+----------+--------+
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2 rows in set (0.00 sec)
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mysql> CREATE TABLE book_table (book_id INT, book_name VARCHAR(50), author_name VARCHAR(50), price INT, sales_flag INT);
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Query OK, 0 rows affected (0.02 sec)
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mysql> INSERT INTO book_table VALUES (10001, 'TwoPeace', '三田英一郎', 420, 1);
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ERROR 1054 (42S22): Unknown column ' 420' in 'field list'
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mysql> INSERT INTO book_table VALUES (10001, 'TwoPeace', '三田英一郎', 420, 1);
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Query OK, 1 row affected (0.01 sec)
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mysql> INSERT INTO book_table VALUES (10002, '名探偵金田二', '青山ふみや', 460, 1);
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ERROR 1054 (42S22): Unknown column ' 460' in 'field list'
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mysql> INSERT INTO book_table VALUES (10002, '名探偵金田二', '青山ふみや', 460, 1);
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Query OK, 1 row affected (0.00 sec)
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mysql> INSERT INTO book_table VALUES (10003, '坊ちゃま', '冬目漱石', 460, 1);
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Query OK, 1 row affected (0.00 sec)
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mysql> INSERT INTO book_table VALUES (10004, '西方見聞録', '不明', 1000, 1);
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Query OK, 1 row affected (0.01 sec)
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mysql> INSERT INTO book_table VALUES (10005, '吾輩は犬である', '冬目漱石', 420, 1);
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Query OK, 1 row affected (0.01 sec)
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mysql> SELECT * FROM book_table;
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+---------+----------------+-------------+-------+------------+
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| book_id | book_name | author_name | price | sales_flag |
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+---------+----------------+-------------+-------+------------+
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| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
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| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
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| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
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| 10004 | 西方見聞録 | 不明 | 1000 | 1 |
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| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
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+---------+----------------+-------------+-------+------------+
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5 rows in set (0.00 sec)
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mysql> SELECT book_name FROM book_table;
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+----------------+
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| book_name |
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+----------------+
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| TwoPeace |
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| 名探偵金田二 |
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| 坊ちゃま |
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| 西方見聞録 |
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| 吾輩は犬である |
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+----------------+
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5 rows in set (0.00 sec)
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mysql> SELECT book_name author_name FROM book_table;
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+----------------+
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| author_name |
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+----------------+
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| TwoPeace |
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| 名探偵金田二 |
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| 坊ちゃま |
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| 西方見聞録 |
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| 吾輩は犬である |
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+----------------+
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5 rows in set (0.00 sec)
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mysql> SELECT book_name, author_name FROM book_table;
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+----------------+-------------+
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| book_name | author_name |
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+----------------+-------------+
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| TwoPeace | 三田英一郎 |
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| 名探偵金田二 | 青山ふみや |
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| 坊ちゃま | 冬目漱石 |
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| 西方見聞録 | 不明 |
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| 吾輩は犬である | 冬目漱石 |
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+----------------+-------------+
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5 rows in set (0.00 sec)
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mysql> UPDATE book_table SET author_name = 'マール=コー=ポロ' SET sales_flag = 0 where book_id = 10004;
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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
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mysql> UPDATE book_table SET author_name = 'マール=コー=ポロ' where book_id = 10004;
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Query OK, 1 row affected (0.01 sec)
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Rows matched: 1 Changed: 1 Warnings: 0
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mysql> UPDATE book_table ]SET sales_flag = 0 where book_id = 10004;
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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
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mysql> UPDATE book_table SET sales_flag = 0 where book_id = 10004;
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Query OK, 1 row affected (0.01 sec)
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Rows matched: 1 Changed: 1 Warnings: 0
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mysql> SELECT * FROM book_table;
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+---------+----------------+--------------------+-------+------------+
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| book_id | book_name | author_name | price | sales_flag |
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+---------+----------------+--------------------+-------+------------+
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| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
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| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
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| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
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| 10004 | 西方見聞録 | マール=コー=ポロ | 1000 | 0 |
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| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
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+---------+----------------+--------------------+-------+------------+
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5 rows in set (0.00 sec)
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mysql> SELECT * FROM book_table where sales_flag = 1;
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+---------+----------------+-------------+-------+------------+
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| book_id | book_name | author_name | price | sales_flag |
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+---------+----------------+-------------+-------+------------+
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| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
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| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
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| 10003 | 坊ちゃま | 冬目漱石 | 460 | 1 |
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| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
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+---------+----------------+-------------+-------+------------+
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4 rows in set (0.00 sec)
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mysql> SELECT * FROM book_table where author_name = '冬目漱石' AND price = 420;
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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
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mysql> SELECT * FROM book_table where author_name = '冬目漱石' AND price = 420;
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+---------+----------------+-------------+-------+------------+
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| book_id | book_name | author_name | price | sales_flag |
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+---------+----------------+-------------+-------+------------+
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| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
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+---------+----------------+-------------+-------+------------+
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1 row in set (0.00 sec)
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mysql> DELETE FROM book_table WHERE book_id = 10003;
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Query OK, 1 row affected (0.00 sec)
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mysql> SELECT * FROM book_table;
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|
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+---------+----------------+--------------------+-------+------------+
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|
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| book_id | book_name | author_name | price | sales_flag |
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|
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+---------+----------------+--------------------+-------+------------+
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||||||
| 10001 | TwoPeace | 三田英一郎 | 420 | 1 |
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| 10002 | 名探偵金田二 | 青山ふみや | 460 | 1 |
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| 10004 | 西方見聞録 | マール=コー=ポロ | 1000 | 0 |
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| 10005 | 吾輩は犬である | 冬目漱石 | 420 | 1 |
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+---------+----------------+--------------------+-------+------------+
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4 rows in set (0.00 sec)
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mysql>
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23
【練習問題】 SQL/Question1/Question1.txt
Normal file
23
【練習問題】 SQL/Question1/Question1.txt
Normal file
@@ -0,0 +1,23 @@
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|
問1
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|
テーブル作成
|
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CREATE TABLE book_table (book_id INT, book_name VARCHAR(50), author_name VARCHAR(50), price INT, sales_flag INT);
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|
問2
|
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|
INSERT INTO book_table VALUES (10001, 'TwoPeace', '三田英一郎', 420,1);
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|
INSERT INTO book_table VALUES (10002, '名探偵金田二', '青山ふみや', 460,1);
|
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|
INSERT INTO book_table VALUES (20001, '坊ちゃま', '冬目漱岩', 460,1);
|
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|
INSERT INTO book_table VALUES (30001, '西方見聞録', '不明', 1000,1);
|
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|
INSERT INTO book_table VALUES (40010, '吾輩は犬である', '冬目漱岩', 420,1);
|
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|
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|
問3
|
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|
SELECT book_name , author_name FROM book_table;
|
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|
問4
|
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|
UPDATE book_table SET sales_flag= 0 WHERE book_id =30001;
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|
問5
|
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|
SELECT * FROM book_table WHERE sales_flag LIKE '%1%';
|
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|
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|
問6
|
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|
SELECT * FROM book_table WHERE author_name = '冬目漱岩' AND price = 420;
|
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|
問7
|
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|
DELETE FROM book_table WHERE book_id = 20001;
|
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68
【練習問題】 SQL/Question2/+α.txt
Normal file
68
【練習問題】 SQL/Question2/+α.txt
Normal file
@@ -0,0 +1,68 @@
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|
問題1
|
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|
mysql> SELECT
|
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|
-> i.item_id,
|
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|
-> i.name AS item_name,
|
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|
-> i.price,
|
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|
-> c.name AS category_name
|
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|
-> FROM items i
|
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|
-> INNER JOIN item_category c ON i.category_id = c.category_id
|
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|
-> ORDER BY i.item_id;
|
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|
+---------+------------------------+--------+---------------+
|
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|
| item_id | item_name | price | category_name |
|
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|
+---------+------------------------+--------+---------------+
|
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| 1 | ローマのテーブル | 150000 | 家具 |
|
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| 2 | げーたるーど2000 500ml | 370 | 飲料 |
|
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| 3 | 原始肉 | 2500 | 食品 |
|
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| 4 | 魅惑の椅子 | 100000 | 家具 |
|
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| 5 | 十八茶 600ml | 110 | 家具 |
|
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|
| 6 | いい匂いのするドリアン | 5000 | 食品 |
|
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|
| 7 | 太平洋の水 550ml | 300 | 飲料 |
|
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|
| 8 | ひたすら膨らむガム | 200 | 食品 |
|
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|
| 9 | 人をだめにするソファー | 10000 | 家具 |
|
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|
| 10 | 人を虜にする名酒 | 20000 | 飲料 |
|
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|
| 11 | 新鮮キャベツ | 1000 | 食品 |
|
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|
+---------+------------------------+--------+---------------+
|
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|
11 rows in set (0.00 sec)
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|
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|
問題2
|
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|
|
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|
mysql> SELECT
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|
-> o.order_id AS '注文ID',
|
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|
-> o.order_time AS '注文日時',
|
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|
-> u.name AS 'ユーザ名',
|
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|
-> i.name AS '商品名',
|
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|
-> i.price AS '価格',
|
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|
-> oi.quantity AS '数量'
|
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|
-> FROM orders o
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|
-> INNER JOIN users u ON o.user_id = u.user_id
|
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|
-> INNER JOIN order_items oi ON o.order_id = oi.order_id
|
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|
-> INNER JOIN items i ON oi.item_id = i.item_id
|
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|
-> ORDER BY o.order_id, i.item_id;
|
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|
+--------+---------------------+----------+------------------------+--------+------+
|
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|
| 注文ID | 注文日時 | ユーザ名 | 商品名 | 価格 | 数量 |
|
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|
+--------+---------------------+----------+------------------------+--------+------+
|
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|
| 1 | 2015-02-22 12:00:00 | 三浦知一 | げーたるーど2000 500ml | 370 | 1 |
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|
| 1 | 2015-02-22 12:00:00 | 三浦知一 | いい匂いのするドリアン | 5000 | 10 |
|
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| 1 | 2015-02-22 12:00:00 | 三浦知一 | 太平洋の水 550ml | 300 | 1 |
|
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|
| 1 | 2015-02-22 12:00:00 | 三浦知一 | 新鮮キャベツ | 1000 | 10 |
|
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|
| 2 | 2015-12-01 15:30:00 | 本田啓介 | 魅惑の椅子 | 100000 | 1 |
|
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|
| 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)
|
||||||
132
【練習問題】 SQL/Question2/Question2.txt
Normal file
132
【練習問題】 SQL/Question2/Question2.txt
Normal file
@@ -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)
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
@@ -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>
|
|
||||||
0
【練習問題】 SQL/Question3/Question3.txt
Normal file
0
【練習問題】 SQL/Question3/Question3.txt
Normal file
Binary file not shown.
Reference in New Issue
Block a user