diff --git a/extdbms/lib/Core/Model.php b/extdbms/lib/Core/Model.php
index 1e44a22..19a0393 100644
--- a/extdbms/lib/Core/Model.php
+++ b/extdbms/lib/Core/Model.php
@@ -77,11 +77,11 @@ abstract class Model
             $temps = [];
             foreach ($datas as $data) {
                 $data   = trim($data);
-                $temps[] = is_string($data) ? "'{$data}'" : $data;
+                $temps[] = is_string($data) ? "='{$data}'" : $data;
             }
             $value = implode($delimeter, $temps);
         } else {
-            $value = is_string($datas) ? "'{$datas}'" : $datas;
+            $value = is_string($datas) ? "='{$datas}'" : $datas;
         }
         return $value;
     }