MySQL小项目-曹操外卖

173页
SELECT * FROM orders ORDER BY orderdate DESC;

SELECT a.title,a.unitprice,a.discount,a.descrioption FROM goods a,orderdetails b WHERE a.goodsid=b.goodsid and qty=(SELECT max(qty) FROM orderdetails);SELECT * FROM goods WHERE discount<1;

SELECT * FROM goods WHERE discount<1;

SELECT * FROM goods WHERE title LIKE '%汉堡%';

SELECT title as '名称',descrioption as '口味',cateid as '编号'FROM goods GROUP BY title,descrioption,cateid;

SELECT * FROM goods WHERE cateid=1;

UPDATE goods SET gwc=1;

SELECT * FROM goods WHERE gwc=1 AND EXISTS(SELECT * FROM customers WHERE custname='黄药师');

SELECT * FROM orders WHERE orderno=20110508002 AND EXISTS(SELECT * FROM customers WHERE custname='黄药师');

INSERT goods(goodsid,title,unitprice,discount,cateid,storeid,roat,descrioption,packingexpense)
VALUES (1,'米饭',10,0.75,8,2,3,'微辣',2);

UPDATE goods SET descrioption='麻辣';

UPDATE goods SET discount=0.75 WHERE goodsid='6';

SELECT * FROM orders WHERE orderstatus IN ('已发货');

SELECT a.orderid,a.orderno,a.custname,a.custphone,a.custaddress,a.invoicecontent,a.orderstatus,b.goodsid,b.qty,b.unitprice,c.loginpwd,c.account FROM orders a INNER JOIN orderdetails b ON a.orderno=b.orderid INNER JOIN customers c ON a.custid=c.custid;

UPDATE customers SET account=1000 WHERE custid='2';

UPDATE customers SET loginpwd=2312 WHERE custid='2';

179页

SELECT goodsid,title,unitprice,discount,cateid,storeid,roat,descrioption,packingexpense FROM goods;

SELECT * FROM goods WHERE cateid=(SELECT cateid FROM category WHERE cateName='川湘菜');

SELECT * FROM goods WHERE title LIKE '%大盘鸡%';

SELECT * FROM goods WHERE roat=5 AND descrioption='麻辣';

SELECT goodsid,title,unitprice,discount,cateid,storeid,roat,descrioption,packingexpense FROM goods WHERE goodsid=24;

SELECT * FROM goods WHERE goodsid in(SELECT goodsid FROM orderdetails ORDER BY qty DESC LIMIT 10);

SELECT * FROM orders WHERE custname='黄雅玲';

SELECT * FROM goods WHERE cateid=6 and storeid IN(SELECT storeid FROM store WHERE personspending>=30 and personspending<=50);

SELECT c.cateName,a.title,b.unitprice as 销售总额 FROM goods a,orderdetails b,category c WHERE a.goodsid=b.goodsid and a.cateid=c.cateid;

SELECT sum(unitprice) as 销售总额 FROM orderdetails;

SELECT c.cateName as 外卖类型,b.qty as 销售数量,a.title as 外卖商品 FROM goods a,orderdetails b,category c WHERE a.goodsid=b.goodsid and a.cateid=c.cateid;

SELECT * FROM goods WHERE storeid=4;

180页

SELECT c.orderdate,a.title,b.qty,a.unitprice FROM goods a,orderdetails b,orders c WHERE a.goodsid=b.goodsid and b.orderid=c.orderid and orderstatus='已收货';

SELECT custname,custaddress,custphone FROM orders;

SELECT count(phone) as 人数 FROM customers WHERE phone LIKE '188%';

SELECT count(custaddress) as 人数 FROM orders WHERE custaddress like '%二七广场%';

SELECT custname,custphone FROM orders WHERE orderprice=(SELECT max(orderprice) FROM orders);

SELECT d.custname,d.custaddress,a.title,a.unitprice,b.qty,c.cateName FROM goods a,orderdetails b,category c,orders d WHERE a.cateid=c.cateid and b.orderid=d.orderid and b.goodsid=a.goodsid and custaddress='北京市和平东路四段32号';

SELECT b.cateName FROM goods a,category b WHERE a.cateid=b.cateid and a.unitprice=(SELECT max(unitprice) FROM goods);

SELECT orderdate,max(orderprice) as 最高金额 FROM orders;

SELECT b.cateName,count(title) as 数量 FROM goods a,category b WHERE a.cateid=b.cateid GROUP BY a.title;

SELECT custname FROM orders WHERE orderprice=(SELECT max(orderprice) FROM orders);

SELECT MAX(unitprice)AS 最高价格 FROM goods; SELECT MIN(unitprice)AS 最低价格 FROM goods;SELECT AVG(untiprice)AS 平均价格 FROM goods;

MySQL小项目-曹操外卖

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