mdb
470048442a
git-svn-id: https://samskivert.googlecode.com/svn/trunk@30 6335cc39-0255-0410-8fd6-9bcaacd3b74c
63 lines
1.7 KiB
SQL
63 lines
1.7 KiB
SQL
/**
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* $Id: create_repository.mysql,v 1.1 2000/12/10 07:00:47 mdb Exp $
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*
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* Creates the necessary database tables in MySQL for the music repository.
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*/
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/**
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* The entries table contains a row for every entry (album, single, etc.)
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* in the repository.
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*/
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DROP TABLE IF EXISTS entries;
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CREATE TABLE entries (
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entryid INTEGER(10) PRIMARY KEY AUTO_INCREMENT,
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title VARCHAR(200) NOT NULL,
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artist VARCHAR(200) NOT NULL,
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source VARCHAR(20) NOT NULL
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);
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/**
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* The songs associated with every entry are all stored in the songs table.
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*/
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DROP TABLE IF EXISTS songs;
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CREATE TABLE songs (
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songid INTEGER(10) PRIMARY KEY AUTO_INCREMENT,
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entryid INTEGER(10) NOT NULL,
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position INTEGER(10) NOT NULL,
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title VARCHAR(200) NOT NULL,
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location VARCHAR(200) NOT NULL,
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duration INTEGER(10) NOT NULL,
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CONSTRAINT fk_songs_entries FOREIGN KEY (entryid)
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REFERENCES entries (entryid) ON DELETE CASCADE
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);
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CREATE INDEX entryid_idx ON songs (entryid);
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/**
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* Categories are generally referred to by their name which is defined in
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* this table.
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*/
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DROP TABLE IF EXISTS category_names;
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CREATE TABLE category_names (
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categoryid INTEGER(10) PRIMARY KEY AUTO_INCREMENT,
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name VARCHAR(100) NOT NULL,
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UNIQUE (name)
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);
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/**
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* Entries are mapped into one or more categories via this table.
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*/
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DROP TABLE IF EXISTS category_map;
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CREATE TABLE category_map (
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categoryid INTEGER(10) NOT NULL,
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entryid INTEGER(10) NOT NULL,
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CONSTRAINT fk_category_map_category_names FOREIGN KEY (categoryid)
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REFERENCES category_names (categoryid) ON DELETE CASCADE,
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CONSTRAINT fk_category_map_entries FOREIGN KEY (entryid)
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REFERENCES entries (entryid) ON DELETE CASCADE,
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UNIQUE (categoryid, entryid)
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);
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