added dense_rank()

src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql

@@ -214,7 +214,7 @@ select st_studium_nr,
 --Nun ist studiengang_nr=1 definiert. Die restlichen werden mit RANK ermittelt:
         (case when studiengang_nr is not null then studiengang_nr
        else 
-       rank () over (partition by semester, st_studstamm_nr,studiengang_nr  order by 
+       dense_rank () over (partition by semester, st_studstamm_nr,studiengang_nr  order by 
         (case when studiengangs_typ_kb='TSG' then st_absz_nr else st_studium_nr end ))+1
         end)
  as studiengang_nr,