diff --git a/src-modules/module/viz/schluesseltabellen/studierende_datenblatt_dashboard.sql b/src-modules/module/viz/schluesseltabellen/studierende_datenblatt_dashboard.sql
index 88d5559..58d2759 100644
--- a/src-modules/module/viz/schluesseltabellen/studierende_datenblatt_dashboard.sql
+++ b/src-modules/module/viz/schluesseltabellen/studierende_datenblatt_dashboard.sql
@@ -11,8 +11,8 @@ select name
        from sx_tables where name ='sos_stg_aggr';
        
 </sqlvar>
-<sqlvar name="logical_fields" type="hashsequence">
-
+<sqlvar name="logical_fields" type="hashsequence"><![CDATA[ 
+<#if sos_stg_aggr_exists==1>
 drop table if exists rpta_sos_hzb_bland;
 create table rpta_sos_hzb_bland as 
 select W.astat as wohnsitz_astat, W.bland as wohnsitz_bland, B.druck as bland_druck, B.astat as bland_astat 
@@ -68,9 +68,9 @@ select 'sos_stud_astat_dashboard' as tablename,
 from xdummy
 
 ;
-
+</#if>
  
-
+]]>
 </sqlvar>
 
 <sqlvar name="added_tables" type="hashsequence"><![CDATA[