一、基本操作题 考生文件夹下存在一个数据库文件samp1.mdb,里面已经设计好表对象tStud。请按照以下要求,完成对表的修改: (1)设置数据表显示的字体大小为14、行高为18; (2)设置简历字段的设计说明为自上大学起的简历信息; (3)将入校时间字段的显示设置为月
一、基本操作题
考生文件夹下存在一个数据库文件“samp1.mdb”,里面已经设计好表对象“tStud”。请按照以下要求,完成对表的修改:
(1)设置数据表显示的字体大小为14、行高为18;
(2)设置“简历”字段的设计说明为“自上大学起的简历信息”;
(3)将“入校时间”字段的显示设置为“××月××日××××”形式;
注意:要求月日为两位显示、年四位显示,如“12月15日2005”。
(4)将学号为“20011002”学生的“照片”字段数据设置成考生文件夹下的“photo.bmp”图像文件;
(5)将冻结的"姓名"字段解冻;
(6)完成上述操作后,将“备注”字段删除;
二、简单应用题
考生文件夹下存在一个数据库文件“samp2.mdb”,里面已经设计好两个表对象“tStud”和“tScore”。试按以下要求完成设计:
(1)创建一个查询,查找并显示学生的“学号”、“姓名”、“性别”、“年龄”和“团员否”五个字段内容,所建查询命名为“qStud1”;
(2)建立“tStud”和“tScore”两表之间的一对一关系;
(3)创建一个查询,查找并显示数学成绩不及格的学生的“姓名”、“性别”和“数学”三个字段内容,所建查询命名为“qStud2”;
(4)创建一个查询,计算并显示“学号”和“平均成绩”两个字段内容,其中平均成绩是计算数学、计算机和英语三门课成绩的平均值,所建查询命名为“qStud3”。
注意:不允许修改表对象“tStud”和“tScore”的结构及记录数据的值;选择查询只返回选了课的学生的相关信息。
三、综合应用题
考生文件夹下存在一个数据库文件“samp3.mdb”,里面已经设计好窗体对象“fStaff”。试在此基础上按照以下要求补充窗体设计:
(1)在窗体的窗体页眉节区位置添加一个标签控件,其名称为“bTitle”,标题显示为“员工信息输出”;
(2)在主体节区位置添加一个选项组控件,将其命名为“opt”,选项组标签显示内容为“性别”,名称为“bopt;
(3)在选项组内放置二个单选按钮控件,选项按钮分别命名为“opt1”和“opt2”,选项按钮标签显示内容分别为“男”和“女”,名称分别为“bopt1”和“bopt2”;
(4)在窗体页脚节区位置添加两个命令按钮,分别命名为“bOk”和“bQuit”,按钮标题分别为“确定”和“退出”;
(5)将窗体标题设置为“员工信息输出”。
注意:不允许修改窗体对象“fStaff”中已设置好的属性。

InnoDBBufferPool reduces disk I/O by caching data and indexing pages, improving database performance. Its working principle includes: 1. Data reading: Read data from BufferPool; 2. Data writing: After modifying the data, write to BufferPool and refresh it to disk regularly; 3. Cache management: Use the LRU algorithm to manage cache pages; 4. Reading mechanism: Load adjacent data pages in advance. By sizing the BufferPool and using multiple instances, database performance can be optimized.

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MySQL is worth learning because it is a powerful open source database management system suitable for data storage, management and analysis. 1) MySQL is a relational database that uses SQL to operate data and is suitable for structured data management. 2) The SQL language is the key to interacting with MySQL and supports CRUD operations. 3) The working principle of MySQL includes client/server architecture, storage engine and query optimizer. 4) Basic usage includes creating databases and tables, and advanced usage involves joining tables using JOIN. 5) Common errors include syntax errors and permission issues, and debugging skills include checking syntax and using EXPLAIN commands. 6) Performance optimization involves the use of indexes, optimization of SQL statements and regular maintenance of databases.

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA


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DVWA
Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software