diff --git a/core/a/mysql.db.php b/core/a/mysql.db.php
index b6e3b44..ccca137 100644
--- a/core/a/mysql.db.php
+++ b/core/a/mysql.db.php
@@ -43,6 +43,15 @@ abstract class Db implements IDb
         }
     }
 
+    /**
+     * will return the last inserted id of the given table
+     * @return int
+     */
+    public function lastInsertId()
+    {
+        return Pdo::getLastInsertedID();
+    }
+
     /**
      * @param bool $user_name
      * @return mixed
diff --git a/core/f/db.php b/core/f/db.php
index 3a88c56..eacf6ce 100644
--- a/core/f/db.php
+++ b/core/f/db.php
@@ -1,12 +1,13 @@
 <?php
 namespace Nibiru\Factory;
-
 /**
  * Created by PhpStorm.
  * User: kasdorf
  * Date: 10.11.17
  * Time: 09:24
  */
+use Nibiru\Adapter\IDb;
+
 class Db
 {
     const DATABASE_DRIVER_NS    = "driver";
@@ -17,10 +18,10 @@ class Db
      *       all database functionallity has to be run trough this
      *       factory
      * @param string $modelName
-     * @return null
+     * @return IDb
      * @throws \Exception
      */
-    public static function loadModel( $modelName = "")
+    public static function loadModel( $modelName = ""): IDb
     {
         try {
             if( $modelName != "" )
diff --git a/core/i/db.php b/core/i/db.php
index 6660dec..87f0777 100644
--- a/core/i/db.php
+++ b/core/i/db.php
@@ -9,6 +9,26 @@ namespace Nibiru\Adapter;
 
 interface IDb
 {
+    /**
+     * @desc updates a row by a given field and field where search value
+     * @param false $wherefield
+     * @param false $wherevalue
+     * @param false $rowfield
+     * @param false $rowvalue
+     * @return mixed
+     */
+    public function updateRowByFieldWhere( $wherefield = false, $wherevalue = false, $rowfield = false, $rowvalue = false );
+    /**
+     * will return the last inserted id of the given table
+     * @return int
+     */
+    public function lastInsertId();
+
+    /**
+     * @desc Will load the given database table as an array
+     * @return mixed
+     */
+    public function loadTableAsArray();
     /**
      * @desc Has to select a given Rowset by the index ID of the table
      * @param bool $id