MySQL SQL問題集 part1

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mysql> USE rezodb;
Database changed
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', 200000);
Query OK, 1 row affected (0.01 sec)

mysql> INSERT INTO emp_table VALUES (2, '梅田', 1000000);
Query OK, 1 row affected (0.01 sec)

mysql> SELECT * FROM emp_table;
+--------+----------+---------+
| emp_no | emp_name | salary  |
+--------+----------+---------+
|      1 | 井上     |  200000 |
|      2 | 梅田     | 1000000 |
+--------+----------+---------+
2 rows in set (0.00 sec)

mysql> CREATE TABLE book_table (book_id INT,book_name VARCHAR(50), author_name VARCHAR(50), prime INT,sales_flag INT);
Query OK, 0 rows affected (0.04 sec)

mysql> INSERT INTO book_table VALUES (10001,TwoPeace,'三田英一郎',420,1);
ERROR 1054 (42S22): Unknown column 'TwoPeace' in 'field list'
mysql> INSERT INTO book_table VALUES(10001,TwoPeace,'三田英一郎',420,1);
ERROR 1054 (42S22): Unknown column 'TwoPeace' in 'field list'
mysql> DROP TABLE book_table;
Query OK, 0 rows affected (0.02 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> INSERT INTO book_table(10001,TwoPeace,'三田英一郎',420,1);
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 '10001,TwoPeace,'三田英一郎',420,1)' at line 1
mysql> INSERT INTO book_table VALUES　(10001,'TwoPeace','三田英一郎',420,1);
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 'VALUES　(10001,'TwoPeace','三田英一郎',420,1)' at line 1
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);
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 |
+---------+-----------+-------------+-------+------------+
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',420,1);
Query OK, 1 row affected (0.00 sec)

mysql> INSERT INTO book_table VALUES(20001,'坊ちゃま','冬目漱石',460);
ERROR 1136 (21S01): Column count doesn't match value count at row 1
mysql> INSERT INTO book_table VALUES(20001,'坊ちゃま','冬目漱石',460,1);
Query OK, 1 row affected (0.01 sec)

mysql> UPDATE book_table SET price = 460 WHERE book_id = 10002;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> INSERT INTO book_table VALUES(30001,'西方見聞録','不明',1000,1);
Query OK, 1 row affected (0.00 sec)

mysql> INSERT INTO book_table VALIES(40010,'吾輩は犬である','冬目漱石',420,1);
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 'VALIES(40010,'吾輩は犬である','冬目漱石',420,1)' at line 1
mysql> INSERT INTO book_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 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 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> UPDATA book_table SET author_name = 'マール＝コー＝ポロ' WHERE book_id = 30001;
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 'UPDATA book_table SET author_name = 'マール＝コー＝ポロ' WHERE book_id ' at line 1
mysql> UPDATA book_table SET author_name = 'マール＝コー＝ポロ' WHERE book_id =30001;
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 'UPDATA book_table SET author_name = 'マール＝コー＝ポロ' WHERE book_id ' at line 1
mysql> UPDATA book_table SET sales_flag = 0 WHERE book_id = 30001;
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 'UPDATA book_table SET sales_flag = 0 WHERE book_id = 30001' at line 1
mysql> ^C
mysql> UPDATE book_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 book_table SET sales_flag = 0 WHERE book_id = 30001;
Query OK, 1 row affected (0.01 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> SELECT FROM *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 'FROM *book_table' at line 1
mysql> SELECT FROM * 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 'FROM * 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 |
|   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 book_table where salse_flag = 1;
ERROR 1054 (42S22): Unknown column 'salse_flag' in 'where clause'
mysql> SELECT * FROM book_table where salse_flag = 1;
ERROR 1054 (42S22): Unknown column 'salse_flag' in 'where clause'
mysql> SELECT * FROM table WHERE sales_flag = 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 'table WHERE sales_flag = 1' at line 1
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 book_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 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 | 冬目漱石           |   420 |          1 |
+---------+----------------+--------------------+-------+------------+
4 rows in set (0.00 sec)