设计一个mysql数据库

时间:2017-01-02 17:41:55

标签: mysql database relational-database

我需要设计一个包含以下内容的数据库:

存储用户,测验和资源(如文章,书籍,博客文章等)和用户。用户首次注册时会进行测验,然后他们的答案将决定向他们建议的资源。

这是我到目前为止所拥有的,这是一个创建我需要的每个表的sql文件。

DROP TABLE IF EXISTS user_questions_answer;
DROP TABLE IF EXISTS user_questions_not_selected;
DROP TABLE IF EXISTS questions_choices;
DROP TABLE IF EXISTS questions;
DROP TABLE IF EXISTS quizes;
DROP TABLE IF EXISTS users;

DROP TABLE IF EXISTS Event_Table;
DROP TABLE IF EXISTS Congregations;
DROP TABLE IF EXISTS Resources;
DROP TABLE IF EXISTS Ensembles;
DROP TABLE IF EXISTS Topics;
DROP TABLE IF EXISTS Languages;
DROP TABLE IF EXISTS Resource_Tags;
DROP TABLE IF EXISTS Resource_Types;
DROP TABLE IF EXISTS Authors;

DROP TABLE IF EXISTS Social_Media_Connections;
DROP TABLE IF EXISTS Ethnicities;
DROP TABLE IF EXISTS Cong_Type;
DROP TABLE IF EXISTS Worship_Types;
DROP TABLE IF EXISTS Instrument_Types;
DROP TABLE IF EXISTS Song_Types;
DROP TABLE IF EXISTS Denominations;
DROP TABLE IF EXISTS Event_Types;
DROP TABLE IF EXISTS Parent_Org;
DROP TABLE IF EXISTS tags;



CREATE TABLE Authors (
    id int unsigned auto_increment,
    name varchar(128), 
    PRIMARY KEY (id),
    website varchar(128),
    email varchar(64)
);

CREATE TABLE Resource_Types (
    id int unsigned auto_increment,
    name varchar(128), 
    PRIMARY KEY (id)
);

CREATE TABLE Resource_Tags (
    id int unsigned auto_increment,
    name varchar(128), 
    PRIMARY KEY (id)
);

CREATE TABLE Languages (
    id int unsigned auto_increment,
    name varchar(128), 
    PRIMARY KEY (id)
);

CREATE TABLE Topics (
    id int unsigned auto_increment,
    name varchar(128), 
    PRIMARY KEY (id)
);

CREATE TABLE Ensembles (
    id int unsigned auto_increment,
    name varchar(128), 
    PRIMARY KEY (id)
);

CREATE TABLE Parent_Org (
    id int unsigned auto_increment,
    name varchar(128), 
    PRIMARY KEY (id)
);

CREATE TABLE Event_Types (
    id int unsigned auto_increment,
    name varchar(64),
    PRIMARY KEY (id)
);

CREATE TABLE Denominations (
    id int unsigned auto_increment,
    name varchar(64),
    PRIMARY KEY (id)
);

CREATE TABLE Song_Types (
    id int unsigned auto_increment,
    name varchar(64),
    PRIMARY KEY (id)
);

CREATE TABLE Instrument_Types (
    id int unsigned auto_increment,
    name varchar(64),
    PRIMARY KEY (id)
);

CREATE TABLE Worship_Types (
    id int unsigned auto_increment,
    name varchar(64),
    PRIMARY KEY (id)
);

CREATE TABLE Cong_Type (
    id int unsigned auto_increment,
    name varchar(64),
    PRIMARY KEY (id)
);

CREATE TABLE Ethnicities (
    id int unsigned auto_increment,
    name varchar(64),
    PRIMARY KEY (id)
);

CREATE TABLE Social_Media_Connections(
    id int unsigned auto_increment,
    name varchar(64),
    PRIMARY KEY (id),
    type varchar(32), 
    link varchar(64)
);




CREATE TABLE Congregations (
    cong_id int unsigned auto_increment,
    PRIMARY KEY (cong_id),
    cong_name varchar(64),
    website varchar(64),
    cong_city varchar(64),
    cong_state varchar(64),
    cong_country varchar(64),
    hymn_soc_members boolean default False,
    priest_attire varchar(64),
    avg_attendance float,
    denomination_id int unsigned not null,
    song_types_id int unsigned not null,
    instrument_types_id int unsigned not null,
    worship_types_id int unsigned not null,
    cong_type_id int unsigned not null,
    ethnicity_types_id int unsigned not null,
    FOREIGN KEY (denomination_id)
        REFERENCES Denominations (id),
    FOREIGN KEY (song_types_id)
        REFERENCES Song_Types(id),
    FOREIGN KEY (instrument_types_id)
        REFERENCES Instrument_Types(id),
    FOREIGN KEY (worship_types_id)
        REFERENCES Worship_Types(id),
    FOREIGN KEY (cong_type_id)
        REFERENCES Cong_Type(id),
    FOREIGN KEY (ethnicity_types_id)
        REFERENCES Ethnicities(id)


);

CREATE TABLE Event_Table(
    event_id int unsigned auto_increment,
    PRIMARY KEY(event_id),
    event_title varchar(128),
    website varchar(128),
    theme_or_topic varchar(128),
    event_desc text(256),
    event_start_date date,
    event_start_time time,
    event_end_date date,
    event_end_time time,
    registration_cost int unsigned default 0,
    event_city varchar(64),
    event_state varchar(32),
    event_country text,
    hymn_soc_member_involved boolean default False,
    parent_org_id int unsigned,
    FOREIGN KEY (parent_org_id)
        REFERENCES Parent_Org (id),
    event_type_id int unsigned,
    FOREIGN KEY (event_type_id)
        REFERENCES Event_Types(id)

);

CREATE TABLE Resources (
    id int unsigned auto_increment,
    PRIMARY KEY (id),
    title varchar(128),
    link varchar(128),
    author_id int unsigned,
    description text(512),
    type_id int unsigned,
    tag_id int unsigned,
    denomination_id int unsigned,
    Resource_date timestamp,
    favorites int unsigned,
    views int unsigned,
    parent_org_id int unsigned,
    language_id int unsigned, 
    is_free boolean,
    instrument_type_id int unsigned,
    topic_id int unsigned,
    ensemble_id int unsigned,
    ethnicity_id int unsigned,
    hymn_soc_member_included boolean,

    FOREIGN KEY (author_id) REFERENCES Authors(id),
    FOREIGN KEY (type_id) REFERENCES Resource_Types(id),
    FOREIGN KEY (tag_id) REFERENCES Resource_Tags(id),
    FOREIGN KEY (denomination_id) REFERENCES Denominations(id),
    FOREIGN KEY (parent_org_id) REFERENCES Parent_Org(id),
    FOREIGN KEY (language_id) REFERENCES Languages(id),
    FOREIGN KEY (instrument_type_id) REFERENCES Instrument_Types(id),
    FOREIGN KEY (topic_id) REFERENCES Topics(id),
    FOREIGN KEY (ensemble_id) REFERENCES Ensembles(id),
    FOREIGN KEY (ethnicity_id) REFERENCES Ethnicities(id)

);

/* now for users and quizes */

CREATE TABLE users (
    user_id int unsigned not null auto_increment,
    email varchar(128) default null,
    password varchar(128) default null,
    first_name varchar(64) default null,
    last_name varchar(64) default null,
    reg_date timestamp,
    is_active tinyint(1) default 1,
    high_level tinyint(1) default 0,
    PRIMARY KEY (user_id),
    social_media_connections_id int unsigned not null,
    FOREIGN KEY (social_media_connections_id) REFERENCES Social_Media_Connections(id)
);

CREATE TABLE quizes (
    quiz_id int unsigned not null auto_increment,
    quiz_title varchar(512),
    is_active tinyint(1) default 1,
    PRIMARY KEY (quiz_id)
);

CREATE TABLE questions (
    question_id int unsigned not null auto_increment,
    question_text varchar(512),
    question_weight smallint unsigned default null,
    PRIMARY KEY (question_id),
    quiz_id int unsigned not null,
    FOREIGN KEY (quiz_id) REFERENCES quizes (quiz_id)
);

CREATE TABLE tags (
    tag_id int unsigned not null auto_increment,
    tag_name varchar(128),
    PRIMARY KEY (tag_id)
    /* maybe link to other tables like congregation types? */
);

CREATE TABLE questions_choices (
    choice_id int unsigned not null auto_increment,
    choice_text varchar(512),
    PRIMARY KEY (choice_id),
    question_id int unsigned not null,
    FOREIGN KEY (question_id)
        REFERENCES questions (question_id),
    /* after modification */
    is_selected tinyint(1) default 0,
    tag_id int unsigned not null,
    FOREIGN KEY (tag_id)
        REFERENCES tags (tag_id)
);

我之前从未设计过这样大小的数据库所以我只是想找一些关于目前为止的信息。我也有几个问题:

  1. 制作单独的表来存储不同的属性是不错的做法?

  2. 我应该存储密码哈希值而不是实际的密码吗?

  3. 将question_choices映射到用户的最有效方法是什么?我创建了一个名为tags的表,它应该连接两个,然后以某种方式使用这些标签在表resource_tags中查找不同的东西,以检索用户感兴趣的内容。

  4. 由于

0 个答案:

没有答案