diff --git a/apps/test_db/appinfo/app.php b/apps/test_db/appinfo/app.php
deleted file mode 100644
index b1ec4c4639c..00000000000
--- a/apps/test_db/appinfo/app.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-
-OC_App::register( array( 
-  'order' => 11,
-  'id' => 'test_db',
-  'name' => 'Test' ));
-  
-OC_App::addNavigationEntry( array( 
-  'id' => 'test_db_index',
-  'order' => 11,
-  'href' => OC_Helper::linkTo( 'test_db', 'index.php' ),
-/*
-  'icon' => OC_Helper::imagePath( 'openstreetgame', 'icon.svg' ),
-*/
-  'name' => 'Test DB' ));
-  
-?>
diff --git a/apps/test_db/appinfo/info.xml b/apps/test_db/appinfo/info.xml
deleted file mode 100644
index 06c716453cc..00000000000
--- a/apps/test_db/appinfo/info.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="ISO-8859-1" ?>
-<info>
-	<id>test_db</id>
-	<name>Test DB</name>
-	<description>A test of the db</description>
-	<version>0.1</version>
-	<licence>AGPL</licence>
-	<author>Côme BERNIGAUD</author>
-	<require>2</require>
-</info>
diff --git a/apps/test_db/appinfo/install.php b/apps/test_db/appinfo/install.php
deleted file mode 100644
index 034bf359140..00000000000
--- a/apps/test_db/appinfo/install.php
+++ /dev/null
@@ -1,7 +0,0 @@
-<?php
-//do some dummy stuff to test the newly created tables
-/*
-$query=OC_DB::prepare("INSERT INTO *PREFIX*test_dummy(foo_name,foo_value) VALUES(?,?)");
-$query->execute(array('bar',42));
-*/
-?>
diff --git a/apps/test_db/index.php b/apps/test_db/index.php
deleted file mode 100644
index 2569aedb9b3..00000000000
--- a/apps/test_db/index.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-
-require_once('../../lib/base.php');
-
-// Check if we are a user
-if( !OC_User::isLoggedIn()){
-	header( "Location: ".OC_Helper::linkTo( '', 'index.php' ));
-	exit();
-}
-
-class Test {
-    private $test1;
-    private $test2;
-    public function init() {
-        $this->test1 = "test1";
-        $this->test2 = 2;
-    }
-    public function show() {
-        echo "test1:".$this->test1."<br/>test2:".$this->test2."<br/>";
-    }
-};
-
-$tmpl = new OC_Template( 'test_db', 'index', 'user' );
-
-$tmpl->printPage();
-?>
diff --git a/apps/test_db/templates/index.php b/apps/test_db/templates/index.php
deleted file mode 100644
index 3209e4d4b7b..00000000000
--- a/apps/test_db/templates/index.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-
-$t1 = new Test();
-$t1->init();
-$t1->show();
-$testid = OC_DB4App::store('test_db','main',OC_User::getUser(),$t1);
-echo "id in db is $testid<br/>\n";
-
-$t2 = OC_DB4App::get_object('test_db','main',$testid);
-$t2->show();
-
-print_r(OC_DB4App::get_objects('test_db','main',OC_User::getUser()));
-
-OC_DB4App::delete_object('test_db','main',$testid);
-
-OC_DB4App::drop('test_db','main');
-?>
diff --git a/lib/db4app.php b/lib/db4app.php
deleted file mode 100644
index 1200652fada..00000000000
--- a/lib/db4app.php
+++ /dev/null
@@ -1,117 +0,0 @@
-<?php
-/**
- * ownCloud
- *
- * @author Côme BERNIGAUD
- * @copyright 2011 Côme BERNIGAUD come.bernigaud@laposte.net
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
- * License as published by the Free Software Foundation; either
- * version 3 of the License, or any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU AFFERO GENERAL PUBLIC LICENSE for more details.
- *
- * You should have received a copy of the GNU Affero General Public
- * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-require_once('base.php');
-
-/**
- * This class manages the access to the database from apps. It basically is a wrapper for
- * OC_DB. It allows that apps doesn't contains SQL code.
- */
-class OC_DB4App {
-	/**
-	 * @brief Store an object in the database
-	 * @param $appname  Name of the application
-	 * @param $table    Name of the database table
-	 * @param $userid   Id of owner of the object
-	 * @param $object   Object to save in the database
-	 * @returns id of the object in the database
-	 *
-	 */
-    static public function store($appname,$tablename,$userid,$object) {
-        $table = $appname."_".$tablename;
-        if(OC_DB::connect()) {
-            $CONFIG_DBTYPE = OC_Config::getValue( "dbtype", "sqlite" );
-            if( $CONFIG_DBTYPE == 'sqlite' or $CONFIG_DBTYPE == 'sqlite3' ){
-                $idline = "id INTEGER PRIMARY KEY AUTOINCREMENT";
-            } else {
-                $idline = "id int NOT NULL AUTO_INCREMENT";
-            }
-            $query = "CREATE TABLE IF NOT EXISTS *PREFIX*$table ($idline,uid int REFERENCES user(id),object text)";
-            OC_DB::query($query);
-            $query = "INSERT INTO *PREFIX*$table (uid,object) VALUES ('$userid','".OC_DB::escape(base64_encode(serialize($object)))."')";
-            OC_DB::query($query);
-            return OC_DB::insertid();
-        } else {
-            die ("could not connect to database");
-        }
-    }
-    
-	/**
-	 * @brief Get an object from the database
-	 * @param $appname  Name of the application
-	 * @param $table    Name of the database table
-	 * @param $objectid Id of the object
-	 * @returns the object
-	 *
-	 */
-    static public function get_object($appname,$tablename,$objectid) {
-        $table = $appname."_".$tablename;
-        if(OC_DB::connect()) {
-            $query = "SELECT object FROM *PREFIX*$table WHERE id='".OC_DB::escape($objectid)."'";
-            $q = OC_DB::prepare($query);
-            $result = $q->execute()->fetchOne();
-            return unserialize(base64_decode($result));
-        } else {
-            die ("could not connect to database");
-        }
-        
-    }
-    
-    static public function get_objects($appname,$tablename,$userid) {
-        $table = $appname."_".$tablename;
-        if(OC_DB::connect()) {
-            $query = "SELECT id FROM *PREFIX*$table WHERE uid='".OC_DB::escape($userid)."'";
-            $q = OC_DB::prepare($query);
-            $result = $q->execute()->fetchAll();
-            return $result;
-        } else {
-            die ("could not connect to database");
-        }
-    }
-    
-    static public function delete_object($appname,$tablename,$objectid) {
-        $table = $appname."_".$tablename;
-        if(OC_DB::connect()) {
-            $query = "DELETE FROM *PREFIX*$table WHERE id='".OC_DB::escape($objectid)."'";
-            $q = OC_DB::prepare($query);
-            $q->execute();
-            return true;
-        } else {
-            die ("could not connect to database");
-        }
-        
-    }
-    
-    static public function drop($appname,$tablename) {
-        $table = $appname."_".$tablename;
-        if(OC_DB::connect()) {
-            $query = "DROP TABLE *PREFIX*$table";
-            $q = OC_DB::prepare($query);
-            $q->execute();
-            return true;
-        } else {
-            die ("could not connect to database");
-        }
-        
-    }
-}
-?>