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    附:mysql查询样例数据

    查询样例数据

    库表结构

    image.png

    创建数据库和数据表

    create database ordersys;
    use ordersys;
    
    CREATE TABLE customers(
      cust_id      int       NOT NULL,
      cust_name    char(50)  NOT NULL ,
      cust_address char(50)  NULL ,
      cust_city    char(50)  NULL ,
      cust_state   char(5)   NULL ,
      cust_zip     char(10)  NULL ,
      cust_country char(50)  NULL ,
      cust_contact char(50)  NULL ,
      cust_email   char(255) NULL ,
      PRIMARY KEY (cust_id)
    );
    
    CREATE TABLE orderitems(
      order_num  int          NOT NULL ,
      order_item int          NOT NULL ,
      prod_id    char(10)     NOT NULL ,
      quantity   int          NOT NULL ,
      item_price decimal(8,2) NOT NULL ,
      PRIMARY KEY (order_num, order_item)
    );
    
    CREATE TABLE orders(
      order_num  int      NOT NULL,
      order_date datetime NOT NULL ,
      cust_id    int      NOT NULL ,
      PRIMARY KEY (order_num)
    );
    
    CREATE TABLE products(
      prod_id    char(10)      NOT NULL,
      vend_id    int           NOT NULL ,
      prod_name  char(255)     NOT NULL ,
      prod_price decimal(8,2)  NOT NULL ,
      prod_desc  text          NULL ,
      PRIMARY KEY(prod_id)
    );
    
    CREATE TABLE vendors(
      vend_id      int      NOT NULL,
      vend_name    char(50) NOT NULL ,
      vend_address char(50) NULL ,
      vend_city    char(50) NULL ,
      vend_state   char(5)  NULL ,
      vend_zip     char(10) NULL ,
      vend_country char(50) NULL ,
      PRIMARY KEY (vend_id)
    );
    
    ALTER TABLE orderitems ADD CONSTRAINT fk_orderitems_orders FOREIGN KEY (order_num) REFERENCES orders (order_num);
    ALTER TABLE orderitems ADD CONSTRAINT fk_orderitems_products FOREIGN KEY (prod_id) REFERENCES products (prod_id);
    ALTER TABLE orders ADD CONSTRAINT fk_orders_customers FOREIGN KEY (cust_id) REFERENCES customers (cust_id);
    ALTER TABLE products ADD CONSTRAINT fk_products_vendors FOREIGN KEY (vend_id) REFERENCES vendors (vend_id);
    

    导入数据

    INSERT INTO customers(cust_id, cust_name, cust_address, cust_city, cust_state, cust_zip, cust_country, cust_contact, cust_email)
    VALUES(10001, 'Coyote Inc.', '200 Maple Lane', 'Detroit', 'MI', '44444', 'USA', 'Y Lee', 'ylee@coyote.com');
    INSERT INTO customers(cust_id, cust_name, cust_address, cust_city, cust_state, cust_zip, cust_country, cust_contact)
    VALUES(10002, 'Mouse House', '333 Fromage Lane', 'Columbus', 'OH', '43333', 'USA', 'Jerry Mouse');
    INSERT INTO customers(cust_id, cust_name, cust_address, cust_city, cust_state, cust_zip, cust_country, cust_contact, cust_email)
    VALUES(10003, 'Wascals', '1 Sunny Place', 'Muncie', 'IN', '42222', 'USA', 'Jim Jones', 'rabbit@wascally.com');
    INSERT INTO customers(cust_id, cust_name, cust_address, cust_city, cust_state, cust_zip, cust_country, cust_contact, cust_email)
    VALUES(10004, 'Yosemite Place', '829 Riverside Drive', 'Phoenix', 'AZ', '88888', 'USA', 'Y Sam', 'sam@yosemite.com');
    INSERT INTO customers(cust_id, cust_name, cust_address, cust_city, cust_state, cust_zip, cust_country, cust_contact)
    VALUES(10005, 'E Fudd', '4545 53rd Street', 'Chicago', 'IL', '54545', 'USA', 'E Fudd');
    
    INSERT INTO vendors(vend_id, vend_name, vend_address, vend_city, vend_state, vend_zip, vend_country)
    VALUES(1001,'Anvils R Us','123 Main Street','Southfield','MI','48075', 'USA');
    INSERT INTO vendors(vend_id, vend_name, vend_address, vend_city, vend_state, vend_zip, vend_country)
    VALUES(1002,'LT Supplies','500 Park Street','Anytown','OH','44333', 'USA');
    INSERT INTO vendors(vend_id, vend_name, vend_address, vend_city, vend_state, vend_zip, vend_country)
    VALUES(1003,'ACME','555 High Street','Los Angeles','CA','90046', 'USA');
    INSERT INTO vendors(vend_id, vend_name, vend_address, vend_city, vend_state, vend_zip, vend_country)
    VALUES(1004,'Furball Inc.','1000 5th Avenue','New York','NY','11111', 'USA');
    INSERT INTO vendors(vend_id, vend_name, vend_address, vend_city, vend_state, vend_zip, vend_country)
    VALUES(1005,'Jet Set','42 Galaxy Road','London', NULL,'N16 6PS', 'England');
    INSERT INTO vendors(vend_id, vend_name, vend_address, vend_city, vend_state, vend_zip, vend_country)
    VALUES(1006,'Jouets Et Ours','1 Rue Amusement','Paris', NULL,'45678', 'France');
    
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('ANV01', 1001, '.5 ton anvil', 5.99, '.5 ton anvil, black, complete with handy hook');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('ANV02', 1001, '1 ton anvil', 9.99, '1 ton anvil, black, complete with handy hook and carrying case');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('ANV03', 1001, '2 ton anvil', 14.99, '2 ton anvil, black, complete with handy hook and carrying case');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('OL1', 1002, 'Oil can', 8.99, 'Oil can, red');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('FU1', 1002, 'Fuses', 3.42, '1 dozen, extra long');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('SLING', 1003, 'Sling', 4.49, 'Sling, one size fits all');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('TNT1', 1003, 'TNT (1 stick)', 2.50, 'TNT, red, single stick');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('TNT2', 1003, 'TNT (5 sticks)', 10, 'TNT, red, pack of 10 sticks');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('FB', 1003, 'Bird seed', 10, 'Large bag (suitable for road runners)');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('FC', 1003, 'Carrots', 2.50, 'Carrots (rabbit hunting season only)');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('SAFE', 1003, 'Safe', 50, 'Safe with combination lock');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('DTNTR', 1003, 'Detonator', 13, 'Detonator (plunger powered), fuses not included');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('JP1000', 1005, 'JetPack 1000', 35, 'JetPack 1000, intended for single use');
    INSERT INTO products(prod_id, vend_id, prod_name, prod_price, prod_desc)
    VALUES('JP2000', 1005, 'JetPack 2000', 55, 'JetPack 2000, multi-use');
    
    
    INSERT INTO orders(order_num, order_date, cust_id)
    VALUES(20005, '2005-09-01', 10001);
    INSERT INTO orders(order_num, order_date, cust_id)
    VALUES(20006, '2005-09-12', 10003);
    INSERT INTO orders(order_num, order_date, cust_id)
    VALUES(20007, '2005-09-30', 10004);
    INSERT INTO orders(order_num, order_date, cust_id)
    VALUES(20008, '2005-10-03', 10005);
    INSERT INTO orders(order_num, order_date, cust_id)
    VALUES(20009, '2005-10-08', 10001);
    
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20005, 1, 'ANV01', 10, 5.99);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20005, 2, 'ANV02', 3, 9.99);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20005, 3, 'TNT2', 5, 10);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20005, 4, 'FB', 1, 10);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20006, 1, 'JP2000', 1, 55);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20007, 1, 'TNT2', 100, 10);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20008, 1, 'FC', 50, 2.50);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20009, 1, 'FB', 1, 10);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20009, 2, 'OL1', 1, 8.99);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20009, 3, 'SLING', 1, 4.49);
    INSERT INTO orderitems(order_num, order_item, prod_id, quantity, item_price)
    VALUES(20009, 4, 'ANV03', 1, 14.99);
    
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