20261027

Question1/MySQL SQL問題集 part1.sql

@@ -0,0 +1,36 @@
+--<EFBFBD><EFBFBD><EFBFBD>P
+CREATE TABLE book_table (
+    book_id INT,
+    book_name VARCHAR(50),
+    author_name VARCHAR(50),
+    price INT,
+    sales_flag INT
+);
+
+--<EFBFBD><EFBFBD><EFBFBD>Q
+INSERT INTO book_table VALUES(10001,'TwoPeace','<EFBFBD>O<EFBFBD>c<EFBFBD>p<EFBFBD><EFBFBD><EFBFBD>Y',420,1);
+INSERT INTO book_table VALUES(10002,'<EFBFBD><EFBFBD><EFBFBD>T<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>c<EFBFBD><EFBFBD>','<EFBFBD>ŽR<EFBFBD>ӂ݂<EFBFBD>',460,1);
+INSERT INTO book_table VALUES(20001,'<EFBFBD>V<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>','<EFBFBD>~<7E>ڟ<EFBFBD><DA9F><EFBFBD>',460,1);
+INSERT INTO book_table VALUES(30001,'<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>^','<EFBFBD>s<EFBFBD><EFBFBD>',1000,1);
+INSERT INTO book_table VALUES(40010,'<EFBFBD><EFBFBD><EFBFBD>y<EFBFBD>͌<EFBFBD><EFBFBD>ł<EFBFBD><EFBFBD><EFBFBD>','<EFBFBD>~<7E>ڟ<EFBFBD><DA9F><EFBFBD>',420,1);
+
+--<EFBFBD><EFBFBD><EFBFBD>R
+SELECT book_name,author_name FROM book_table;
+
+--<EFBFBD><EFBFBD><EFBFBD>S
+UPDATE book_table 
+SET author_name = '<EFBFBD>}<7D>[<5B><><EFBFBD><EFBFBD><EFBFBD>R<EFBFBD>[<5B><><EFBFBD>|<7C><>',
+    sales_flag = 0
+WHERE book_id = 30001;
+
+--<EFBFBD><EFBFBD><EFBFBD>T
+SELECT * FROM book_table
+WHERE sales_flag = 1;
+
+--<EFBFBD><EFBFBD><EFBFBD>U
+SELECT * FROM book_table
+WHERE author_name = '<EFBFBD>~<7E>ڟ<EFBFBD><DA9F><EFBFBD>' AND price = 420;
+
+--<EFBFBD><EFBFBD><EFBFBD>V
+DELETE FROM book_table
+WHERE book_id = 20001;

Question2/MySQL SQL問題集 part２.sql

@@ -0,0 +1,79 @@
+--<EFBFBD><EFBFBD><EFBFBD>P
+CREATE TABLE item_category (
+    category_id INT AUTO_INCREMENT PRIMARY KEY,
+    category_name VARCHAR(256) NOT NULL
+);
+
+INSERT INTO item_category(category_name) VALUES('<EFBFBD>Ƌ<EFBFBD>'),('<EFBFBD><EFBFBD><EFBFBD><EFBFBD>'),('<EFBFBD>H<EFBFBD>i');
+
+
+--<EFBFBD><EFBFBD><EFBFBD>Q
+CREATE TABLE items(
+    item_id INT AUTO_INCREMENT PRIMARY KEY,
+    name VARCHAR(256) NOT NULL,
+    price INT NOT NULL,
+    category_id INT,
+    FOREIGN KEY(category_id) REFERENCES item_category(category_id)
+);
+
+INSERT INTO items(name,price,category_id) 
+VALUES('<EFBFBD><EFBFBD><EFBFBD>[<5B>}<7D>̃e<CC83>[<5B>u<EFBFBD><75>',150000,1),('<EFBFBD><EFBFBD><EFBFBD>[<5B><><EFBFBD><EFBFBD><EFBFBD>[<5B><>2000 500ml',370,2),('<EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD>',2500,3),('<EFBFBD><EFBFBD><EFBFBD>f<EFBFBD>̈֎q',100000,1);
+
+--<EFBFBD><EFBFBD><EFBFBD>R
+SELECT 
+a.item_id,
+a.name,
+a.price,
+b.category_id,
+b.category_name 
+FROM items a
+INNER JOIN item_category b
+ON a.category_id = b.category_id;
+
+
+--<EFBFBD><EFBFBD><EFBFBD>S
+SELECT *
+FROM items
+ORDER BY price;
+
+--<EFBFBD><EFBFBD><EFBFBD>T
+SELECT 
+a.item_id,
+a.name,
+a.price,
+b.category_id,
+b.category_name 
+FROM items a
+INNER JOIN item_category b
+ON a.category_id = b.category_id AND b.category_name = '<EFBFBD>Ƌ<EFBFBD>';
+
+--<EFBFBD><EFBFBD><EFBFBD>U
+SELECT 
+a.item_id,
+a.name,
+a.price,
+b.category_id,
+b.category_name 
+FROM items a
+INNER JOIN item_category b
+ON a.category_id = b.category_id AND a.price <= 50000 AND a.price >= 1000;
+
+--<EFBFBD><EFBFBD><EFBFBD>V
+SELECT COUNT(*) AS data_count
+FROM items;
+
+--<EFBFBD><EFBFBD><EFBFBD>W
+SELECT * FROM items
+WHERE price = (SELECT MAX(price) FROM items);
+
+--<EFBFBD><EFBFBD><EFBFBD>X
+SELECT 
+a.item_id,
+a.name,
+a.price,
+b.category_id,
+b.category_name 
+FROM items a
+INNER JOIN item_category b
+ON a.category_id = b.category_id
+WHERE a.name LIKE'%<25><>%';

Question2/【+α】SQL/MySQL_question2.sql

@@ -111,31 +111,4 @@ INSERT INTO order_items (order_id, item_id, quantity) VALUES (9, 3, 4);
 INSERT INTO order_items (order_id, item_id, quantity) VALUES (9, 5, 2);
 INSERT INTO order_items (order_id, item_id, quantity) VALUES (9, 8, 10);
 INSERT INTO order_items (order_id, item_id, quantity) VALUES (10, 1, 2);
-INSERT INTO order_items (order_id, item_id, quantity) VALUES (10, 10, 2);
-
---Q1--
-SELECT items.item_id AS '商品ID', items.name AS '商品名',items.price AS '価格',item_category.name AS 'カテゴリ名' FROM items
-LEFT OUTER JOIN item_category  ON item_category.category_id = items.category_id;
-
-
---Q2--
-SELECT orders.order_id AS '注文ID',orders.order_time AS '注文日時', users.name AS 'ユーザ名',items.name AS '商品名',items.price AS '価格', order_items.quantity AS '数量'
-FROM order_items
-INNER JOIN orders ON orders.order_id = order_items.order_id
-INNER JOIN users ON users.user_id = orders.user_id
-INNER JOIN items ON items.item_id = order_items.item_id
-ORDER BY orders.order_time ASC;
-
-
---Q3--
-SELECT  orders.order_id AS '注文ID',orders.order_time AS '注文日時',users.name AS 'ユーザ名',
-SUM(items.price * order_items.quantity) AS '合計額'
-FROM orders
-INNER JOIN users ON users.user_id = orders.user_id
-INNER JOIN order_items ON order_items.order_id = orders.order_id
-INNER JOIN items ON items.item_id = order_items.item_id
-GROUP BY orders.order_id,orders.order_time,users.name
-ORDER BY orders.order_time ASC;
-
---Q4--
-SELECT 
+INSERT INTO order_items (order_id, item_id, quantity) VALUES (10, 10, 2);

SQL/kougi.sql

@@ -1,21 +0,0 @@
-CREATE TABLE emp_table (
-    emp_no   INT,
-    emp_name VARCHAR(50),
-    salary   INT
-);  
-
---<EFBFBD>o<EFBFBD>^
-INSERT INTO emp_table VALUES(1,'<EFBFBD><EFBFBD><EFBFBD><EFBFBD>',200000);
-INSERT INTO emp_table VALUES(2,'<EFBFBD>c<EFBFBD><EFBFBD>',500000);
-
---<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
-SELECT * FROM emp_table;
-SELECT * FROM emp_table WHERE emp_no = 1;
-
---<EFBFBD>X<EFBFBD>V
-UPDATE emp_table SET salary = 100;
-SELECT * FROM emp_table;
-
---<EFBFBD>폜
-DELETE FROM emp_table;
-SELECT * FROM emp_table;

SQL/q1.sql

@@ -1,25 +0,0 @@
-CREATE TABLE book_table (
-    book_id   INT,
-    book_name VARCHAR(50),
-    author_name VARCHAR(50),
-    price INT,
-    sales_flag INT
-);  
-
-INSERT INTO book_table VALUES (10001,'TwoPeace','<EFBFBD>O<EFBFBD>c<EFBFBD>p<EFBFBD><EFBFBD><EFBFBD>Y',420,'1');
-INSERT INTO book_table VALUES (10002,'<EFBFBD><EFBFBD><EFBFBD>T<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>c<EFBFBD><EFBFBD>','<EFBFBD>ŽR<EFBFBD>ӂ݂<EFBFBD>',460,'1');
-INSERT INTO book_table VALUES (20001,'<EFBFBD>V<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>','<EFBFBD>~<7E>ڐ<EFBFBD><DA90><EFBFBD>',460,'1');
-INSERT INTO book_table VALUES (30001,'<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>^','<EFBFBD>s<EFBFBD><EFBFBD>',1000,'1');
-INSERT INTO book_table VALUES (40001,'<EFBFBD><EFBFBD><EFBFBD>y<EFBFBD>͌<EFBFBD><EFBFBD>ł<EFBFBD><EFBFBD><EFBFBD>','<EFBFBD>~<7E>ڐ<EFBFBD><DA90><EFBFBD>',420,'1');
-
-DELETE FROM book_table WHERE book_id = 10001;
-DELETE FROM book_table;
-
-SELECT book_name,author_name FROM book_table;
-
-UPDATE book_table SET author_name = '<EFBFBD>}<7D>[<5B><><EFBFBD><EFBFBD><EFBFBD>R<EFBFBD>[<5B><><EFBFBD>|<7C><>' WHERE book_id = 30001;
-UPDATE book_table SET sales_flag = '0' WHERE book_id = 30001;
-
-SELECT * FROM book_table HAVING sales_flag = '1';
-
-DELETE FROM book_table WHERE book_id = 20001;

SQL/q2+.sql

@@ -1,6 +0,0 @@
-CREATE DATABASE Q2Extends   ;
-show databases;
-
-
---Q1--
-CREATE TABLE syouhine

SQL/q2.sql

@@ -1,50 +0,0 @@
-CREATE TABLE item_category (
-category_id INT PRIMARY KEY AUTO_INCREMENT COMMENT '<EFBFBD>J<EFBFBD>e<EFBFBD>S<EFBFBD><EFBFBD>ID',
-category_name VARCHAR(256) NOT NULL COMMENT '<EFBFBD>J<EFBFBD>e<EFBFBD>S<EFBFBD><EFBFBD><EFBFBD><EFBFBD>'
-); 
-
-
-INSERT INTO item_category VALUES (1,'<EFBFBD>Ƌ<EFBFBD>');
-INSERT INTO item_category VALUES (2,'<EFBFBD><EFBFBD><EFBFBD><EFBFBD>');
-INSERT INTO item_category VALUES (3,'<EFBFBD>H<EFBFBD>i');
-
-
-CREATE TABLE items (
-item_id INT PRIMARY KEY AUTO_INCREMENT COMMENT '<EFBFBD>A<EFBFBD>C<EFBFBD>e<EFBFBD><EFBFBD>ID',
-name VARCHAR(256) NOT NULL COMMENT '<EFBFBD>A<EFBFBD>C<EFBFBD>e<EFBFBD><EFBFBD><EFBFBD><EFBFBD>',
-price INT NOT NULL COMMENT '<EFBFBD><EFBFBD><EFBFBD>i',
-category_id INT COMMENT '<EFBFBD>J<EFBFBD>e<EFBFBD>S<EFBFBD><EFBFBD>ID',
-FOREIGN KEY (category_id) REFERENCES item_category(category_id)
-);
-
-INSERT INTO items VALUES (1,'<EFBFBD><EFBFBD><EFBFBD>[<5B>}<7D>̃e<CC83>[<5B>u<EFBFBD><75>',150000,1);
-INSERT INTO items VALUES (2,'<EFBFBD><EFBFBD><EFBFBD>[<5B><><EFBFBD><EFBFBD><EFBFBD>[<5B><>2000 500ml',370,2);
-INSERT INTO items VALUES (3,'<EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD>',2500,3);
-INSERT INTO items VALUES (4,'<EFBFBD><EFBFBD><EFBFBD>f<EFBFBD>̈֎q',100000,1);
-
-SELECT item_category.category_id,items.item_id,items.name,items.price,item_category.category_name AS name  
-FROM item_category LEFT OUTER JOIN items ON items.category_id = item_category.category_id;
-
-UPDATE items SET price = 100000 WHERE items.name = '<EFBFBD><EFBFBD><EFBFBD>f<EFBFBD>̈֎q';
-
-SELECT item_category.category_id,items.item_id,items.name,items.price,item_category.category_name AS name  
-FROM item_category LEFT OUTER JOIN items ON items.category_id = item_category.category_id 
-ORDER BY items.price;
-
-SELECT item_category.category_id,items.item_id,items.name,items.price,item_category.category_name AS name   
-FROM item_category LEFT OUTER JOIN items ON items.category_id = item_category.category_id WHERE item_category.category_id = 1;
-
-SELECT item_category.category_id,items.item_id,items.name,items.price,item_category.category_name AS name   
-FROM item_category LEFT OUTER JOIN items ON items.category_id = item_category.category_id WHERE items.price >=1000 and items.price <=50000;
-
-SELECT COUNT(*)AS data_count FROM items;
-
---Q8--
-SELECT item_category.category_id,items.item_id,items.name,items.price,item_category.category_name AS name   
-FROM item_category LEFT OUTER JOIN items ON items.category_id = item_category.category_id
-WHERE items.price = (SELECT MAX(price) FROM items);
-
----Q9---
-SELECT item_category.category_id,items.item_id,items.name,items.price,item_category.category_name AS name   
-FROM item_category LEFT OUTER JOIN items ON items.category_id = item_category.category_id
-WHERE items.name LIKE '%<25><>%';