diff --git a/examples/relational/Storage/AccessTokenStorage.php b/examples/relational/Storage/AccessTokenStorage.php
index 96481de5..e5b6d47c 100644
--- a/examples/relational/Storage/AccessTokenStorage.php
+++ b/examples/relational/Storage/AccessTokenStorage.php
@@ -73,7 +73,12 @@ class AccessTokenStorage extends Adapter implements AccessTokenInterface
      */
     public function create($token, $expireTime, $sessionId)
     {
-        die(var_dump(__METHOD__, func_get_args()));
+        Capsule::table('oauth_access_tokens')
+                    ->insert([
+                        'access_token'     =>  $token,
+                        'session_id'    =>  $sessionId,
+                        'expire_time'   =>  $expireTime
+                    ]);
     }
 
     /**
diff --git a/examples/relational/Storage/AuthCodeStorage.php b/examples/relational/Storage/AuthCodeStorage.php
index 77126240..5a840237 100644
--- a/examples/relational/Storage/AuthCodeStorage.php
+++ b/examples/relational/Storage/AuthCodeStorage.php
@@ -24,13 +24,14 @@ class AuthCodeStorage extends Adapter implements AuthCodeInterface
         if (count($result) === 1) {
             $token = new AuthCodeEntity($this->server);
             $token->setId($result[0]['auth_code']);
+            $token->setRedirectUri($result[0]['client_redirect_uri']);
             return $token;
         }
 
         return null;
     }
 
-    public function create($token, $$expireTime, $sessionId)
+    public function create($token, $expireTime, $sessionId, $redirectUri)
     {
         Capsule::table('oauth_auth_codes')
                     ->insert([
@@ -46,7 +47,25 @@ class AuthCodeStorage extends Adapter implements AuthCodeInterface
      */
     public function getScopes(AuthCodeEntity $token)
     {
-        die(var_dump(__METHOD__, func_get_args()));
+        $result = Capsule::table('oauth_auth_code_scopes')
+                                    ->select(['oauth_scopes.id', 'oauth_scopes.description'])
+                                    ->join('oauth_scopes', 'oauth_auth_code_scopes.scope', '=', 'oauth_scopes.id')
+                                    ->where('auth_code', $token->getId())
+                                    ->get();
+
+        $response = [];
+
+        if (count($result) > 0) {
+            foreach ($result as $row) {
+                $scope = (new ScopeEntity($this->server))->hydrate([
+                    'id'            =>  $row['id'],
+                    'description'   =>  $row['description']
+                ]);
+                $response[] = $scope;
+            }
+        }
+
+        return $response;
     }
 
     /**
@@ -55,10 +74,10 @@ class AuthCodeStorage extends Adapter implements AuthCodeInterface
     public function associateScope(AuthCodeEntity $token, ScopeEntity $scope)
     {
         Capsule::table('oauth_auth_code_scopes')
-                            ->insert([
-                                'auth_code' =>  $token->getToken(),
-                                'scope'     =>  $scope->getId()
-                            ]);
+                    ->insert([
+                        'auth_code' =>  $token->getId(),
+                        'scope'     =>  $scope->getId()
+                    ]);
     }
 
     /**
@@ -66,6 +85,8 @@ class AuthCodeStorage extends Adapter implements AuthCodeInterface
      */
     public function delete(AuthCodeEntity $token)
     {
-        die(var_dump(__METHOD__, func_get_args()));
+        Capsule::table('oauth_auth_codes')
+                    ->where('auth_code', $token->getId())
+                    ->delete();
     }
 }
diff --git a/examples/relational/Storage/SessionStorage.php b/examples/relational/Storage/SessionStorage.php
index faf0162b..62e3ba3b 100644
--- a/examples/relational/Storage/SessionStorage.php
+++ b/examples/relational/Storage/SessionStorage.php
@@ -29,11 +29,10 @@ class SessionStorage extends Adapter implements SessionInterface
         $result = Capsule::table('oauth_sessions')
                             ->select(['oauth_sessions.id', 'oauth_sessions.owner_type', 'oauth_sessions.owner_id', 'oauth_sessions.client_id', 'oauth_sessions.client_redirect_uri'])
                             ->join('oauth_access_tokens', 'oauth_access_tokens.session_id', '=', 'oauth_sessions.id')
-                            ->where('oauth_access_tokens.access_token', $accessToken->getToken())
+                            ->where('oauth_access_tokens.access_token', $accessToken->getId())
                             ->get();
 
         if (count($result) === 1) {
-            // die(var_dump($result));
             $session = new SessionEntity($this->server);
             $session->setId($result[0]['id']);
             $session->setOwner($result[0]['owner_type'], $result[0]['owner_id']);
@@ -49,7 +48,21 @@ class SessionStorage extends Adapter implements SessionInterface
      */
     public function getByAuthCode(AuthCodeEntity $authCode)
     {
-        die(var_dump(__METHOD__, func_get_args()));
+        $result = Capsule::table('oauth_sessions')
+                            ->select(['oauth_sessions.id', 'oauth_sessions.owner_type', 'oauth_sessions.owner_id', 'oauth_sessions.client_id', 'oauth_sessions.client_redirect_uri'])
+                            ->join('oauth_auth_codes', 'oauth_auth_codes.session_id', '=', 'oauth_sessions.id')
+                            ->where('oauth_auth_codes.auth_code', $authCode->getId())
+                            ->get();
+
+        if (count($result) === 1) {
+            $session = new SessionEntity($this->server);
+            $session->setId($result[0]['id']);
+            $session->setOwner($result[0]['owner_type'], $result[0]['owner_id']);
+
+            return $session;
+        }
+
+        return null;
     }
 
     /**
@@ -67,9 +80,10 @@ class SessionStorage extends Adapter implements SessionInterface
         $scopes = [];
 
         foreach ($result as $scope) {
-            $scopes[] = (new ScopeEntity($this->server))
-                            ->setId($scope['id'])
-                            ->setDescription($scope['description']);
+            $scopes[] = (new ScopeEntity($this->server))->hydrate([
+                'id'            =>  $scope['id'],
+                'description'   =>  $scope['description']
+            ]);
         }
 
         return $scopes;
@@ -95,6 +109,10 @@ class SessionStorage extends Adapter implements SessionInterface
      */
     public function associateScope(SessionEntity $session, ScopeEntity $scope)
     {
-        die(var_dump(__CLASS__.'::'.__METHOD__, func_get_args()));
+        Capsule::table('oauth_session_scopes')
+                            ->insert([
+                                'session_id'    =>  $session->getId(),
+                                'scope'         =>  $scope->getId()
+                            ]);
     }
 }