mysql查询每个读者的借阅信息,包括对读者姓名、书名、借阅日期、借阅状态
时间: 2024-12-13 10:28:28 浏览: 152
在MySQL中,如果你有一个包含读者信息、书籍信息以及借阅记录的数据库表,比如`readers`, `books`, 和 `borrow_records`,你可以通过JOIN操作来获取每个读者的借阅信息。假设这些表有以下字段:
- readers表:reader_id (读者ID), reader_name (读者姓名)
- books表:book_id (书籍ID), book_title (书名)
- borrow_records表:borrow_record_id, reader_id, book_id, borrow_date (借阅日期), return_status (借阅状态)
你可以使用以下SQL查询来获取所需的数据:
```sql
SELECT r.reader_name, b.book_title, br.borrow_date, br.return_status
FROM readers r
JOIN borrow_records br ON r.reader_id = br.reader_id
JOIN books b ON br.book_id = b.book_id;
```
这个查询将结合三个表,基于读者ID和书籍ID关联数据,然后返回每个读者的姓名、他们借阅的书名、借阅日期以及借阅状态。
相关问题
创建带输入参数的存储过程,输入书名,查询借阅了该书读者的信息,结果包含读者编号、读者姓名、书名和借阅日期, 然后调用该存储过程查询用mysql 语句实现借阅了图书“数学分析习题演练”的读者的信息
好的,以下是创建存储过程的 MySQL 代码:
```
CREATE PROCEDURE get_borrower_info(IN book_name VARCHAR(255))
BEGIN
SELECT borrower_id, borrower_name, book_name, borrow_date
FROM borrow
WHERE book_name = book_name;
END
```
接下来,你可以使用以下代码调用该存储过程:
```
CALL get_borrower_info('数学分析习题演练');
```
这将返回借阅了“数学分析习题演练”的读者的信息,包括读者编号、读者姓名、书名和借阅日期。
会员(会员ID、姓名、联系方式、会员类型、会费) 书籍(书籍ID、书名、作者、出版社、分类、数量、价格) 借阅(借阅ID、会员ID、书籍ID、借阅日期、归还日期、应还日期、实还日期、借阅状态) 收入(收入ID、会员ID、收入类型、金额、收入日期)写出其对应的逻辑结构设计利用mysql的相关命令创建,并利用相关mysql语句达成1.添加、修改、删除会员信息 2.添加、修改、删除书籍信息 3.查询、借阅、归还书籍 4.查询借阅信息、收入信息 5.书籍检索 6.计算罚款
好的,以下是对应的逻辑结构设计:
1. 会员表:Member(memberID, name, contact, type, fee)
- memberID: int,主键,会员ID
- name: varchar,会员姓名
- contact: varchar,联系方式
- type: varchar,会员类型
- fee: decimal,会费
2. 书籍表:Book(bookID, title, author, publisher, category, quantity, price)
- bookID: int,主键,书籍ID
- title: varchar,书名
- author: varchar,作者
- publisher: varchar,出版社
- category: varchar,分类
- quantity: int,数量
- price: decimal,价格
3. 借阅表:Borrow(borrowID, memberID, bookID, borrowDate, returnDate, dueDate, actualReturnDate, status)
- borrowID: int,主键,借阅ID
- memberID: int,外键,会员ID
- bookID: int,外键,书籍ID
- borrowDate: date,借阅日期
- returnDate: date,归还日期
- dueDate: date,应还日期
- actualReturnDate: date,实还日期
- status: varchar,借阅状态
4. 收入表:Income(incomeID, memberID, type, amount, date)
- incomeID: int,主键,收入ID
- memberID: int,外键,会员ID
- type: varchar,收入类型
- amount: decimal,金额
- date: date,收入日期
利用mysql的相关命令创建表:
CREATE TABLE Member (
memberID INT PRIMARY KEY,
name VARCHAR(50),
contact VARCHAR(50),
type VARCHAR(50),
fee DECIMAL(10,2)
);
CREATE TABLE Book (
bookID INT PRIMARY KEY,
title VARCHAR(100),
author VARCHAR(50),
publisher VARCHAR(50),
category VARCHAR(50),
quantity INT,
price DECIMAL(10,2)
);
CREATE TABLE Borrow (
borrowID INT PRIMARY KEY,
memberID INT,
bookID INT,
borrowDate DATE,
returnDate DATE,
dueDate DATE,
actualReturnDate DATE,
status VARCHAR(50),
FOREIGN KEY (memberID) REFERENCES Member(memberID),
FOREIGN KEY (bookID) REFERENCES Book(bookID)
);
CREATE TABLE Income (
incomeID INT PRIMARY KEY,
memberID INT,
type VARCHAR(50),
amount DECIMAL(10,2),
date DATE,
FOREIGN KEY (memberID) REFERENCES Member(memberID)
);
添加会员信息:
INSERT INTO Member (memberID, name, contact, type, fee) VALUES (1, '张三', '13812345678', 'VIP', 100.00);
修改会员信息:
UPDATE Member SET fee=150.00 WHERE memberID=1;
删除会员信息:
DELETE FROM Member WHERE memberID=1;
添加书籍信息:
INSERT INTO Book (bookID, title, author, publisher, category, quantity, price) VALUES (1, '红楼梦', '曹雪芹', '人民文学出版社', '古典小说', 5, 50.00);
修改书籍信息:
UPDATE Book SET price=60.00 WHERE bookID=1;
删除书籍信息:
DELETE FROM Book WHERE bookID=1;
查询书籍:
SELECT * FROM Book;
借阅书籍:
INSERT INTO Borrow (borrowID, memberID, bookID, borrowDate, returnDate, dueDate, actualReturnDate, status) VALUES (1, 1, 1, '2021-01-01', NULL, '2021-01-15', NULL, '借出');
归还书籍:
UPDATE Borrow SET actualReturnDate='2021-01-10', status='已归还' WHERE borrowID=1;
查询借阅信息:
SELECT * FROM Borrow;
查询收入信息:
SELECT * FROM Income;
书籍检索:
SELECT * FROM Book WHERE title LIKE '%红楼梦%';
计算罚款:
SELECT DATEDIFF(actualReturnDate, dueDate) * 0.1 AS fine FROM Borrow WHERE actualReturnDate > dueDate;
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