From 0997f3003f442bc9ab72b3e9d9915539858c5f48 Mon Sep 17 00:00:00 2001
From: CTGU-HW <1499086342@qq.com>
Date: Thu, 2 Jul 2020 18:03:25 +0800
Subject: [PATCH] first commit

---
 P.sql | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 P.sql

diff --git a/P.sql b/P.sql
new file mode 100644
index 0000000..b891fc4
--- /dev/null
+++ b/P.sql
@@ -0,0 +1,76 @@
+drop PROCEDURE if EXISTS details;
+CREATE PROCEDURE details(in uNum varchar(8))
+READS SQL DATA
+BEGIN
+	select users.userNo 会员编号, users.name 姓名, users.level 会员等级, book.bookNo 图书编号,
+	book.bookName 图书名称, year(orders.orderTime) 购买年份, orderdetails.Onumber 数量, book.price
+	from users,orders,orderdetails,book
+	where users.userNo = uNum
+	and orders.userNo = uNum 
+	and orderdetails.userNo = uNum 
+	and orderdetails.bookNo = book.bookNo;
+END;
+
+call details("0000001");
+
+drop PROCEDURE if EXISTS createOrder;
+CREATE PROCEDURE createOrder(in uNum varchar(8))
+READS SQL DATA
+BEGIN
+	declare bookMoney float(5);
+	declare sNo varchar(8);
+  declare oNo varchar(8);
+	declare oST varchar(20);
+	declare P_OrderNo varchar(50);
+	declare dST varchar(10);
+	declare bn varchar(20);
+	declare nm int;declare i int;
+	DECLARE done INT DEFAULT 0;##创建结束标志变量
+	DECLARE cur cursor 
+		for select bookNo,num,id
+		FROM shoppingcart WHERE userNo = uNum;##创建游标
+		DECLARE CONTINUE HANDLER FOR NOT found SET done = 1;##定义游标结束时的返回值
+	
+	set @oST='未处理';
+	SET @dST='未配送';
+-- 	将会员号和时间拼接起来作为订单号
+	SELECT CONCAT(uNum,NOW()) into P_OrderNo;
+-- 	统计此次购买金额存到bookMoney
+	select sum(num * price) into bookMoney from shoppingcart where userNo = uNum;
+-- 	查询此次的购物车编号存到sNo
+	select distinct(scartNo) into sNo from shoppingcart where userNo = uNum;
+-- 	Begin  Tran
+		insert into orders (userNo, orderTime, sumMoney, scartNo,orderStatus,orderNo)
+								value(uNum, now(), bookMoney, sNo,@oST,P_OrderNo);
+		insert into distributionlist (orderNo, userNo, deliveryStatus)
+								value(P_OrderNo, uNum, '未完成配送');						
+		select last_insert_id() into oNo;
+-- 	Commit  Tran
+-- 购书明细信息写入订单明细表中
+		open cur;	##打开游标
+		read_loop:loop
+		fetch cur into bn,nm,i;
+		if done = 1 then
+			leave read_loop;##跳出循环
+		end if;
+		insert into orderdetails (orderNo, deliveryStatus, bookNo, userNo,Onumber)
+								value(P_OrderNo, '未配送', bn, uNum,nm);
+		end loop;
+    close cur;
+		DELETE FROM shoppingcart WHERE userNo = uNum;
+		SELECT * FROM orderdetails;
+		SELECT * from shoppingcart;
+END;
+
+call createOrder("0000001");
+
+
+
+drop PROCEDURE if EXISTS pressSales;
+CREATE PROCEDURE pressSales()
+BEGIN
+	select press 出版社, sum(Onumber) 销售总数量 from orderdetails, book 
+	where orderdetails.bookNo = book.bookNo group by orderdetails.bookNo order by sum(Onumber);
+END;
+
+call pressSales();