Examination question bank management skills in the MySQL table structure design of the online examination system
1. Introduction
With the rapid development of the Internet, the education field has also begun to use The online platform conducts online teaching and examinations. As a convenient and fast examination form, the online examination system has been favored by a large number of educators and student groups. One of the core components of the online examination system is question bank management. This article will analyze the examination question bank management techniques in the MySQL table structure design of the online examination system and give specific code examples.
2. Problem Analysis
The question bank management module in the online examination system needs to implement the following functions:
3. Database design
Based on the analysis of the above issues, we can design the following table structure to manage the examination question bank:
The specific table structure design and sample code are given below:
(1) Design of question table (question_table):
Field name type description
question_id int Question ID
question_type varchar(10) Question type
content text Question content
answer text Correct answer
Sample code:
CREATE TABLE question_table (
question_id INT PRIMARY KEY AUTO_INCREMENT ,
question_type VARCHAR(10) NOT NULL,
content TEXT NOT NULL,
answer TEXT NOT NULL
);
(2) Design of category table (category_table):
Field name type description
category_id int Category ID
category_name varchar(20) Category name
Sample code:
CREATE TABLE category_table (
category_id INT PRIMARY KEY AUTO_INCREMENT,
category_name VARCHAR(20) NOT NULL
);
(3) Design of difficulty level table (difficulty_table):
Field name type description
difficulty_id int Difficulty level ID
difficulty_name varchar(10) difficulty level name
Sample code:
CREATE TABLE difficulty_table (
difficulty_id INT PRIMARY KEY AUTO_INCREMENT,
difficulty_name VARCHAR(10) NOT NULL
);
(4) Design of tag table (tag_table):
Field name type description
tag_id int Tag ID
tag_name varchar(20) Tag name
Sample code:
CREATE TABLE tag_table (
tag_id INT PRIMARY KEY AUTO_INCREMENT,
tag_name VARCHAR(20) NOT NULL
);
(5) Design of question-category association table (question_category_table):
Field name type description
question_id int Question ID
category_id int Category ID
Sample code:
CREATE TABLE question_category_table (
question_id INT NOT NULL,
category_id INT NOT NULL ,
PRIMARY KEY (question_id, category_id),
FOREIGN KEY (question_id) REFERENCES question_table (question_id),
FOREIGN KEY (category_id) REFERENCES category_table (category_id)
);
(6) Design of question-difficulty level association table (question_difficulty_table):
Field name type description
question_id int Question ID
difficulty_id int Difficulty level ID
Sample code:
CREATE TABLE question_difficulty_table (
question_id INT NOT NULL,
difficulty_id INT NOT NULL,
PRIMARY KEY (question_id, difficulty_id),
FOREIGN KEY (question_id) REFERENCES question_table (question_id),
FOREIGN KEY ( difficulty_id) REFERENCES difficulty_table (difficulty_id)
);
(7) Design of question-tag association table (question_tag_table):
Field name type description
question_id int Question ID
tag_id int Tag ID
Sample code:
CREATE TABLE question_tag_table (
question_id INT NOT NULL,
tag_id INT NOT NULL,
PRIMARY KEY (question_id, tag_id),
FOREIGN KEY (question_id) REFERENCES question_table (question_id),
FOREIGN KEY (tag_id) REFERENCES tag_table (tag_id)
);
IV. Summary
The above are the examination question bank management skills in the MySQL table structure design of the online examination system. Through reasonable table structure design, we can implement functions such as addition, deletion, modification, classification management, difficulty level management, tag management, import and export of questions. During specific implementation, appropriate adjustments and expansions can be made according to needs. I hope the above content will be helpful to your online examination system development!
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