diff --git a/FrmLogOper.cs b/FrmLogOper.cs
index 6598a88..8e203fa 100644
--- a/FrmLogOper.cs
+++ b/FrmLogOper.cs
@@ -74,7 +74,7 @@
             else {
                 string sql = "select LOGID,to_char(LOGDATE,'YYYY-MM-DD hh24:mi:ss'),"
                 + "LOGUSERNAME,LOGOPER"
-                + " from casic_loginfo";
+                + " from casic_loginfo where 1=1";
 
             string user = userLists.Text;
             if (user != "")