Final changes to correct primary key and uniqueness rules.

MySQL_docker/highscores_database.sql

@@ -2,32 +2,34 @@ CREATE DATABASE highscores;
 use highscores;
 
 CREATE TABLE Guilds(
-   GuildId bigint unsigned not null,
+   GuildId bigint unsigned not null unique,
    SubmissionChannel bigint unsigned,
    UsernameLength smallint DEFAULT 12,
    VerificationChannel bigint unsigned,
    PRIMARY KEY (GuildId)
 );
 
-CREATE TABLE Groups(
+CREATE TABLE CategoryGroups(
    ChannelId bigint unsigned,
-   GroupId int not null AUTO_INCREMENT,
+   GroupId int unsigned not null unique AUTO_INCREMENT,
    GroupName varchar(50) not null,
-   GuildId int not null,
+   GuildId bigint unsigned not null,
    MessageId bigint unsigned,
    PadLength smallint not null DEFAULT 26,
    Size smallint not null, -- unsure if I like this name. Also unsure belong here or in Category
+   CONSTRAINT UniqueGuildCategoryGroup UNIQUE (GuildId, GroupName),
    FOREIGN KEY (GuildId) REFERENCES Guilds(GuildId),
    PRIMARY KEY (GroupId)
 );
 
 CREATE TABLE Categories(
-   CategoryId int not null AUTO_INCREMENT,
+   CategoryId int unsigned not null unique AUTO_INCREMENT,
    CategoryName varchar(30) not null,
-   GroupId int not null,
+   GroupId int unsigned not null,
    IsAscending boolean not null DEFAULT true,
    IsTimeRecord boolean not null DEFAULT false,
    IsValidated boolean not null DEFAULT true,
+   CONSTRAINT UniqueCategoryInGroup UNIQUE (GroupId, CategoryName),
    FOREIGN KEY (GroupId) REFERENCES CategoryGroups(GroupId),
    PRIMARY Key (CategoryId)
 );
@@ -35,7 +37,7 @@ CREATE TABLE Categories(
 CREATE TABLE Scores(
    UserName varchar(30) not null,
    Score float not null, -- Maybe should have time and int scores?? timestamp type?
-   CategoryId int not null,
+   CategoryId int unsigned not null,
    FOREIGN KEY (CategoryId) REFERENCES Categories(CategoryId),
-   CONSTRAINT PKScore PRIMARY KEY (CategoryId, UserName) -- i think this means there isnt a column for this key but the key is made up of categoryid and username
+   PRIMARY KEY (CategoryId, UserName)
 );