diff --git a/Design/DB_STRUCTURE/db_script.cql b/Design/DB_STRUCTURE/db_script.cql
new file mode 100644
index 0000000..2a2cac3
--- /dev/null
+++ b/Design/DB_STRUCTURE/db_script.cql
@@ -0,0 +1,51 @@
+CREATE TABLE IF NOT EXISTS history (
+    user_id    INT NOT NULL,
+    file_id    VARCHAR2(256 CHAR) NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS metadata (
+    title           VARCHAR2(256 CHAR),
+    artist          VARCHAR2(256 CHAR),
+    cover           TEXT,
+    duration        VARCHAR2(20 CHAR),
+    music_file_id   VARCHAR2(256 CHAR) NOT NULL,
+    PRIMARY KEY (music_file_id)
+);
+
+CREATE TABLE IF NOT EXISTS music (
+    file_id               VARCHAR2(256 CHAR) NOT NULL,
+    video_id              VARCHAR2(20 CHAR),
+    audio_quality         INT,
+    audio_format          INT,
+    times_requested       INT,
+    is_metadata_by_user   CHAR(1),
+    PRIMARY KEY (file_id)
+);
+
+CREATE TABLE IF NOT EXISTS playlist (
+    playlist_id       VARCHAR2(256 CHAR) NOT NULL,
+    number_elements   INT,
+    times_requested   INT,
+    PRIMARY KEY (playlist_id)
+);
+
+CREATE TABLE IF NOT EXISTS playlist_has_music (
+    playlist_playlist_id   VARCHAR2(256 CHAR) NOT NULL,
+    music_file_id          VARCHAR2(256 CHAR) NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS preferences (
+    audio_quality         VARCHAR2(5 CHAR),
+    audio_format          VARCHAR2(5 CHAR),
+    os                    VARCHAR2(10 CHAR),
+    should_ask_metadata   CHAR(1),
+    user_id          	  INT NOT NULL,
+    PRIMARY KEY (user_id)
+);
+
+CREATE TABLE IF NOT EXISTS "User" (
+    user_id    INT NOT NULL,
+    username   VARCHAR2(45 CHAR),
+    name       CLOB,
+    PRIMARY KEY (user_id)
+);