diff --git a/lib/classes/databox/status.php b/lib/classes/databox/status.php
index f4d00a9728..b5d9868324 100644
--- a/lib/classes/databox/status.php
+++ b/lib/classes/databox/status.php
@@ -151,10 +151,6 @@ class databox_status
 
     public static function operation_and(Application $app, $stat1, $stat2)
     {
-        $conn = $app['phraseanet.appbox']->get_connection();
-
-        $status = '0';
-
         if (substr($stat1, 0, 2) === '0x') {
             $stat1 = self::hex2bin($app, substr($stat1, 2));
         }
@@ -162,18 +158,7 @@ class databox_status
             $stat2 = self::hex2bin($app, substr($stat2, 2));
         }
 
-        $sql = 'select bin(0b' . trim($stat1) . ' & 0b' . trim($stat2) . ') as result';
-
-        $stmt = $conn->prepare($sql);
-        $stmt->execute();
-        $row = $stmt->fetch(PDO::FETCH_ASSOC);
-        $stmt->closeCursor();
-
-        if ($row) {
-            $status = $row['result'];
-        }
-
-        return $status;
+        return dechex(hexdec($stat1) & hexdec($stat2));
     }
 
     /**
@@ -184,42 +169,20 @@ class databox_status
      * @param $stat1 a binary mask "010x1xx0.." STRING
      * @param $stat2 a binary mask "x100x1..." STRING
      *
-     * @return binary string
+     * @return string
      */
     public static function operation_mask(Application $app, $stat1, $stat2)
     {
-        $conn = $app['phraseanet.appbox']->get_connection();
+        $stat1_or  = bindec(trim(str_replace("x", "0", $stat1)));
+        $stat1_and = bindec(trim(str_replace("x", "1", $stat1)));
+        $stat2_or  = bindec(trim(str_replace("x", "0", $stat2)));
+        $stat2_and = bindec(trim(str_replace("x", "1", $stat2)));
 
-        $status = '0';
-        $stat1_or  = '0b' . trim(str_replace("x", "0", $stat1));
-        $stat1_and = '0b' . trim(str_replace("x", "1", $stat1));
-        $stat2_or  = '0b' . trim(str_replace("x", "0", $stat2));
-        $stat2_and = '0b' . trim(str_replace("x", "1", $stat2));
-
-        // $sql = "SELECT BIN(((((0 | :o1) & :a1)) | :o2) & :a2) AS result";
-        // $stmt = $conn->prepare($sql);
-        // $stmt->execute(array(':o1'=>$stat1_or, ':a1'=>$stat1_and, ':o2'=>$stat2_or, ':a2'=>$stat2_and));
-
-        $sql = "SELECT BIN(((((0 | $stat1_or) & $stat1_and)) | $stat2_or) & $stat2_and) AS result";
-        $stmt = $conn->prepare($sql);
-        $stmt->execute();
-
-        $row = $stmt->fetch(\PDO::FETCH_ASSOC);
-        $stmt->closeCursor();
-
-        if ($row) {
-            $status = $row['result'];
-        }
-
-        return $status;
+        return decbin((((0 | $stat1_or) & $stat1_and) | $stat2_or) & $stat2_and);
     }
 
     public static function operation_and_not(Application $app, $stat1, $stat2)
     {
-        $conn = $app['phraseanet.appbox']->get_connection();
-
-        $status = '0';
-
         if (substr($stat1, 0, 2) === '0x') {
             $stat1 = self::hex2bin($app, substr($stat1, 2));
         }
@@ -227,26 +190,11 @@ class databox_status
             $stat2 = self::hex2bin($app, substr($stat2, 2));
         }
 
-        $sql = 'select bin(0b' . trim($stat1) . ' & ~0b' . trim($stat2) . ') as result';
-
-        $stmt = $conn->prepare($sql);
-        $stmt->execute();
-        $row = $stmt->fetch(PDO::FETCH_ASSOC);
-        $stmt->closeCursor();
-
-        if ($row) {
-            $status = $row['result'];
-        }
-
-        return $status;
+        return decbin(bindec($stat1) & ~bindec($stat2));
     }
 
     public static function operation_or(Application $app, $stat1, $stat2)
     {
-        $conn = $app['phraseanet.appbox']->get_connection();
-
-        $status = '0';
-
         if (substr($stat1, 0, 2) === '0x') {
             $stat1 = self::hex2bin($app, substr($stat1, 2));
         }
@@ -254,18 +202,7 @@ class databox_status
             $stat2 = self::hex2bin($app, substr($stat2, 2));
         }
 
-        $sql = 'select bin(0b' . trim($stat1) . ' | 0b' . trim($stat2) . ') as result';
-
-        $stmt = $conn->prepare($sql);
-        $stmt->execute();
-        $row = $stmt->fetch(PDO::FETCH_ASSOC);
-        $stmt->closeCursor();
-
-        if ($row) {
-            $status = $row['result'];
-        }
-
-        return $status;
+        return decbin(hexdec($stat1) | hexdec($stat2));
     }
 
     public static function dec2bin(Application $app, $status)
@@ -276,22 +213,7 @@ class databox_status
             throw new \Exception(sprintf('`%s`is non-decimal value', $status));
         }
 
-        $conn = $app['phraseanet.appbox']->get_connection();
-
-        $sql = 'select bin(' . $status . ') as result';
-
-        $stmt = $conn->prepare($sql);
-        $stmt->execute();
-        $row = $stmt->fetch(PDO::FETCH_ASSOC);
-        $stmt->closeCursor();
-
-        $status = '0';
-
-        if ($row) {
-            $status = $row['result'];
-        }
-
-        return $status;
+        return decbin($status);
     }
 
     public static function hex2bin(Application $app, $status)
@@ -305,22 +227,7 @@ class databox_status
             throw new \Exception('Non-hexadecimal value');
         }
 
-        $conn = $app['phraseanet.appbox']->get_connection();
-
-        $sql = 'select BIN( CAST( 0x' . trim($status) . ' AS UNSIGNED ) ) as result';
-
-        $stmt = $conn->prepare($sql);
-        $stmt->execute();
-        $row = $stmt->fetch(PDO::FETCH_ASSOC);
-        $stmt->closeCursor();
-
-        $status = '0';
-
-        if ($row) {
-            $status = $row['result'];
-        }
-
-        return $status;
+        return hex2bin($status);
     }
 
     public static function bitIsSet($bitValue, $nthBit)