diff -u b/dbtng_example/dbtng_example.module b/dbtng_example/dbtng_example.module
--- b/dbtng_example/dbtng_example.module
+++ b/dbtng_example/dbtng_example.module
@@ -346,8 +346,7 @@
       break;
 
     case 'examples/dbtng/ordered_list':
-      $output = t('Generate an ordered list of all the records in the database. ');
-      $output .= t('The records will be displayed in ascending order for column "Name".');
+      $output = t('Generate a list of database records in Ordering format. The records will be displayed in ascending order for column "Name".');
   }
   return $output;
 }
@@ -395,7 +394,7 @@
   $items['examples/dbtng/ordered_list'] = array(
     'title' => 'Ordered list',
     'page callback' => 'dbtng_example_ordered_list',
-    'access callback' => TRUE,
+    'access arguments' => array('access dbtng example ordered list'),
     'type' => MENU_LOCAL_TASK,
   );
 
@@ -403,6 +402,22 @@
 }
 
 /**
+ * Implements hook_permission().
+ *
+ * This hook can supply permissions that the module defines, so that they can
+ * be selected on the user permissions page and used to grant or restrict
+ * access to actions the module performs.
+ */
+function dbtng_example_permission() {
+  return array(
+    'access dbtng example ordered list' => array(
+      'title' => t('Permission to view an Ordered List'),
+      'description' => t('Give permission to access an Ordered List.'),
+    ),
+  );
+}
+
+/**
  * Render a list of entries in the database.
  */
 function dbtng_example_list() {
@@ -588,39 +603,46 @@
 /**
  * Render an ordered list of entries in the database.
  *
- * This function queries the database and retrives all the records in an ascending order.
+ * This function queries the database and retrives all the records in an
+ * ascending order.
  *
- * SELECT ex.pid AS pid, ex.uid AS uid, ex.name AS name, ex.surname AS surname, ex.age AS age
+ * SELECT ex.pid AS pid, ex.uid AS uid, ex.name AS name, ex.surname AS surname,
+ * ex.age AS age
  * FROM {dbtng_example} ex
  * ORDER BY ex.name ASC
  *
  */
 function dbtng_example_ordered_list() {
-  $output = '';
-
-  $select = db_select('dbtng_example', 'ex');
-  $select->fields('ex', array('pid', 'uid', 'name', 'surname', 'age'));
+  $dbtng_example_execute_ordered_select_query = db_select('dbtng_example', 'ex')->fields('ex');
   // 'ex.name' is the field on which to order.
-  // Legal values for sorting are "ASC" and "DESC". Any other value will be converted to "ASC".
-  $select->orderBy('ex.name', 'ASC');
+  // Legal values for sorting are "ASC" and "DESC". Any other value will be
+  // converted to "ASC".
+  $dbtng_example_execute_ordered_select_query->orderBy('ex.name', 'ASC');
   // generate the result in object format.
-  $result = $select->execute()->fetchAll();
+  $dbtng_example_result = $dbtng_example_execute_ordered_select_query->execute()->fetchAll();
 
-  if ($result) {
+  $output = '';
+  if ($dbtng_example_result) {
     $rows = array();
-    foreach ($result as $row) {
+    foreach ($dbtng_example_result as $row) {
       // Sanitize the data before handing it off to the theme layer.
       $rows[] = array_map('check_plain', (array) $row);
     }
-    // Make a table for them.
-    $header = array(t('Id'), t('uid'), t('Name'), t('Surname'), t('Age'));
-    $output .= theme('table', array('header' => $header, 'rows' => $rows));
+    $output .= dbtng_example_render_resultset_as_table($rows);
   }
   else {
     drupal_set_message(t('No records found.'));
   }
   return $output;
 }
+
+function dbtng_example_render_resultset_as_table($rows = array()) {
+  // Make a table for them.
+  $header = array(t('Id'), t('uid'), t('Name'), t('Surname'), t('Age'));
+  $output = theme('table', array('header' => $header, 'rows' => $rows));
+
+  return $output;
+}
 /**
  * @} End of "defgroup dbtng_example".
  */