CREATE TABLE "artist" (
  "artistid" INTEGER PRIMARY KEY NOT NULL,
  "name" text NOT NULL
);
CREATE UNIQUE INDEX "artist_name" ON "artist" ("name");
CREATE TABLE "cd" (
  "cdid" INTEGER PRIMARY KEY NOT NULL,
  "artistid" integer NOT NULL,
  "title" text NOT NULL,
  "year" datetime,
  FOREIGN KEY ("artistid") REFERENCES "artist"("artistid") ON DELETE CASCADE ON UPDATE CASCADE
);
CREATE INDEX "cd_idx_artistid" ON "cd" ("artistid");
CREATE UNIQUE INDEX "cd_title_artistid" ON "cd" ("title", "artistid");
CREATE TABLE "track" (
  "trackid" INTEGER PRIMARY KEY NOT NULL,
  "cdid" integer NOT NULL,
  "title" text NOT NULL,
  FOREIGN KEY ("cdid") REFERENCES "cd"("cdid") ON DELETE CASCADE ON UPDATE CASCADE
);
CREATE INDEX "track_idx_cdid" ON "track" ("cdid");
CREATE UNIQUE INDEX "track_title_cdid" ON "track" ("title", "cdid");