1

Question2/【+α】SQL/MySQL_question2.sql

@@ -112,3 +112,30 @@ 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 

SQL/kougi.sql

@@ -0,0 +1,21 @@
+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

@@ -0,0 +1,25 @@
+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

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

SQL/q2.sql

@@ -0,0 +1,50 @@
+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><>%';