diff --git a/libraries/functions.js b/libraries/functions.js
index 57793b7aa..4e6d87b26 100644
--- a/libraries/functions.js
+++ b/libraries/functions.js
@@ -71,7 +71,10 @@ function confirmQuery(theForm1, sqlQuery1)
         if (do_confirm_re_0.test(sqlQuery1.value)
             || do_confirm_re_1.test(sqlQuery1.value)
             || do_confirm_re_2.test(sqlQuery1.value)) {
-            var is_confirmed = confirm(confirmMsg + ' :\n' + sqlQuery1.value);
+            var message      = (sqlQuery1.value.length > 100)
+                             ? sqlQuery1.value.substr(0, 100) + '\n    ...'
+                             : sqlQuery1.value;
+            var is_confirmed = confirm(confirmMsg + ' :\n' + message);
             // drop/delete/alter statement is confirmed -> update the
             // "is_js_confirmed" form field so the confirm test won't be
             // run on the server side and allows to submit the form