院系英文缩写？

一、院系英文缩写？

DEE.THU 清华电子工程系 DEEAET.THU 清华电机系 DEM(Department of Engineering Mechanics ).THU 清华工程力学系 DEP.THU 清华工程物理系 

院 College of XXXX, 如 College of Mechanical and Electronic Engineering机电学院

系 Department of XXXX, 如 Department of Computer Science计算机系

科 Division of XXXX， 如Service Division后勤科

室 Office

二、数据库的英文含义？

数据库：database 简写 ：DB数据库管理系统：database maintain system 简写：DBMS数据库系统这种说法不太标准。但一般都这么说了。

三、数据库的英文缩写？

DB（Database）数据库，另外，还有常见的DBMS表示数据库管理系统（Database Management System）。 数据库是以某种规则储存在一起、能够与多个用户共享、具有尽可能小的冗余度、且与应用程序彼此独立的数据集合，可以视为电子化的文件柜，用户可以对文件中的数据进行新增、查询、更新、删除等操作。

四、ualcan英文数据库全称？

GUIDE ╲ UALCAN是一个全面的、用户友好的、交互式的web资源，用于分析癌症组学数据。

五、医院系统连接不到数据库了怎么办？

重新启动下系统看可以吗，如果不行找医院系统开发管理人员。

六、c#数据库英文缩写？

c sharp. 是微软.NET平台下的一种程序设计语言

七、关系型数据库英文简写？

关系数据库的英文缩写是RDBMS(RelationalDatabase Management System)

关系型数据库，是指采用了关系模型来组织数据的数据库，其以行和列的形式存储数据，以便于用户理解，关系型数据库这一系列的行和列被称为表，一组表组成了数据库。

用户通过查询来检索数据库中的数据，而查询是一个用于限定数据库中某些区域的执行代码。关系模型可以简单理解为二维表格模型，而一个关系型数据库就是由二维表及其之间的关系组成的一个数据组织。

八、数据库系统的英文缩写？

database system

数据库系统(Database System)，是由数据库及其管理软件组成的系统。

数据库系统是为适应数据处理的需要而发展起来的一种较为理想的数据处理系统，也是一个为实际可运行的存储、维护和应用系统提供数据的软件系统，是存储介质 、处理对象和管理系统的集合体。

九、数据库期末试题 英文

在大学学习计算机科学的过程中，数据库课程无疑是非常重要的一门课程。作为计算机领域的核心内容之一，数据库的理论和实践都占据着非常重要的位置。期末试题是考察学生对数据库知识的掌握程度和应用能力的重要手段。本篇博文将为大家提供一些关于数据库期末试题的英文示例，帮助大家更好地准备考试。

Part 1: Multiple Choice

1. Which of the following is NOT a relational database management system (RDBMS)?

• a) MySQL
• b) Oracle
• c) MongoDB
• d) PostgreSQL

2. What is the purpose of a primary key in a database table?

• a) It ensures data integrity and uniqueness of records.
• b) It allows for faster retrieval of data.
• c) It provides a way to define relationships between tables.
• d) It is used to create backup copies of the database.

3. Which SQL keyword is used to retrieve data from a database?

• a) SELECT
• b) UPDATE
• c) DELETE
• d) INSERT

4. What is normalization in the context of database design?

• a) It refers to the process of organizing data into tables and columns.
• b) It ensures that each column contains only atomic values.
• c) It eliminates redundant data and minimizes data anomalies.
• d) It allows for efficient storage and retrieval of data.

Part 2: Query Writing

1. Write an SQL query to retrieve all students from the "students" table who have scored more than 90 in the "math" subject.

2. Write an SQL query to calculate the average salary of employees in each department from the "employees" table.

SELECT department, AVG(salary) FROM employees GROUP BY department;

3. Write an SQL query to retrieve the top 5 products with the highest sales from the "products" table.

SELECT * FROM products ORDER BY sales DESC LIMIT 5;

Part 3: Database Design

1. Design a database schema for a library management system. The system should store information about books, borrowers, and loans. Provide the table structures and their relationships.

CREATE TABLE books (
  book_id INT PRIMARY KEY,
  title VARCHAR(100),
  author VARCHAR(50),
  published_year INT,
  available_copies INT
);

CREATE TABLE borrowers (
  borrower_id INT PRIMARY KEY,
  name VARCHAR(50),
  address VARCHAR(100),
  phone_number VARCHAR(20),
  email VARCHAR(100)
);

CREATE TABLE loans (
  loan_id INT PRIMARY KEY,
  book_id INT,
  borrower_id INT,
  loan_date DATE,
  due_date DATE,
  FOREIGN KEY (book_id) REFERENCES books (book_id),
  FOREIGN KEY (borrower_id) REFERENCES borrowers (borrower_id)
);

2. Explain the concept of database normalization and its importance in database design.

Database normalization is the process of organizing data in a database to eliminate redundancy and minimize data anomalies. It involves breaking down a database into multiple tables and defining relationships between them. The main goals of normalization are to ensure data integrity, reduce data duplication, and improve query performance. By following normalization principles, a database can achieve a higher level of efficiency and maintainability.

Part 4: Essay Question

Explain the advantages and disadvantages of using a relational database management system (RDBMS) compared to other types of databases.

Relational database management systems (RDBMS) have several advantages:

• - They provide a structured and organized way to store and retrieve data.
• - They support relationships between tables through primary and foreign keys.
• - They ensure data integrity by enforcing constraints.
• - They have a strong and widely adopted standard language, SQL, for data manipulation.

However, RDBMS also have some disadvantages:

• - They can be complex to design and maintain, especially for large-scale databases.
• - They may have limitations in handling unstructured or semi-structured data.
• - They can be less suitable for certain types of applications, such as real-time or highly scalable systems.
• - They can have performance issues when dealing with complex queries involving multiple tables.

总结起来，数据库期末试题对于学生来说是一个重要的考核方式，通过解答这些试题，学生可以巩固并提升自己的数据库知识和应用能力。希望本篇英文示例能够对大家准备数据库期末考试有所帮助。

十、学生院系评语？

　　1、该⽣⽆论在学习、⼯作、⽣活上都能严格要求⾃⼰。尊敬师长，和同学关系融洽。集体观念强，积极为班级服务，劳动积极肯⼲。学习刻苦认真，有恒⼼，成绩优良。⽣活俭朴，是个德智体全⾯发展的优秀学⽣。

　　2、该⽣为⼈诚实，乐于助⼈，对⼈有礼貌，⾃觉参加社会实践和⽂体活动。组织纪律性强，严格要求⾃⼰，尊敬师长，团结同学。学习努⼒，刻苦钻研，成绩上升较快，是位基础扎实，素质⾼、发展全⾯的学⽣。