diff --git a/src/server/shared/sample.php b/src/server/shared/sample.php
--- a/src/server/shared/sample.php
+++ b/src/server/shared/sample.php
@@ -176,7 +176,7 @@
             $sql .= ' (' . implode(', ', $columns) . ') VALUES (';
             $sql .= implode(', ', $binds) . ')';
         } else {
-            $sql .= ' DEFAULT VALUES';
+            $sql .= ' VALUES ()';
         }
         $stmt = $db->prepare($sql);
         foreach ($values as $key => $data) {