diff --git a/WEBROOT/Commands/TEST/index.php b/WEBROOT/Commands/TEST/index.php
new file mode 100644
index 0000000..8d8a736
--- /dev/null
+++ b/WEBROOT/Commands/TEST/index.php
@@ -0,0 +1,162 @@
+<?php
+
+include_once(__DIR__ . '/../../controller/DatabaseController.php');
+include_once(__DIR__ . '/../../controller/DataController.php');
+
+class changeTimetable{
+    /**
+     * get Teachers
+     *
+     * @return array
+     */
+    public function getTeachers() : array {
+        $teachers = [];
+        $teachers = DatabaseShow(
+            'Lehrer',
+            'NAME'
+        );
+
+        return $teachers;
+    }
+
+    /**
+     * get Rooms
+     *
+     * @return array
+     */
+    public function getRooms() : array {
+        $rooms = [];
+        $rooms = DatabaseShow(
+            'Raum',
+            'RAUM_NR'
+        );
+
+        return $rooms;
+    }
+
+    /**
+     * get Lessons
+     *
+     * @return array
+     */
+    public function getLessons() : array {
+        $lessons = [];
+        $lessons = DatabaseShow(
+            'Fach',
+            'FACH'
+        );
+
+        return $lessons;
+    }
+
+    /**
+     * add a new Teacher to the Table
+     *
+     * @param array $teachers
+     * @return boolean
+     */
+    public function addTeachers(array $teachers) : bool {
+        try {
+            foreach ($teachers as $teacher) {
+                DatabaseInsert(
+                    'Lehrer',
+                    'NAME',
+                    $teacher
+                );
+            }
+
+            return true;
+        } catch (Exception $error) {
+            echo $error;
+
+            return false;
+        }
+    }
+
+    /**
+     * add a new Room Number to the Tabke
+     *
+     * @param array $roomnrs
+     * @return bool
+     */
+    public function addRooms(array $roomnrs) : bool {
+        try {
+            foreach ($roomnrs as $roomnr) {
+                DatabaseInsert(
+                    'Raum',
+                    'RAUM_NR',
+                    $roomnr,
+                );
+            }
+
+            return true;
+        } catch (Exception $error) {
+            echo $error;
+
+            return false;
+        }
+    }
+
+    public function addLessons(array $lessons) : bool {
+        try {
+            foreach ($lessons as $lesson) {
+                DatabaseInsert(
+                    'Fach',
+                    'FACH',
+                    $lesson
+                );
+            }
+
+            return true;
+        } catch (Exception $error) {
+            echo $error;
+
+            return false;
+        }
+    }
+
+    public function setInitial(string $Teacher, string $Initial) : bool {
+        try {
+            $ID = DatabaseShow(
+                'Lehrer',
+                'ID',
+                'NAME = ?',
+                $Teacher,
+            );
+
+            $ID = $ID[0]['ID'];
+
+            DatabaseUpdate(
+                'Lehrer',
+                'INITIALS = ?',
+                'ID = ?',
+                $Initial,
+                $ID
+            );
+
+            return true;
+        } catch (Exception $error) {
+            echo $error;
+
+            return false;
+        }
+    }
+}
+
+$TimeTable = new changeTimetable();
+
+#$TimeTable->addTeachers([
+#    '',
+#]);
+
+#$TimeTable->addRooms([
+#    '',
+#]);
+
+#$TimeTable->addLessons([
+#    '',
+#]);
+
+#(new changeTimetable()->addLessons(['', '']));
+
+#(new changeTimetable()->setInitial('', ''));
\ No newline at end of file