From 7d26777c56805fef8713a2b17db4b809c6e1d885 Mon Sep 17 00:00:00 2001
From: Daniel Quathamer <danielq@memtext.de>
Date: Tue, 26 Oct 2021 08:42:44 +0200
Subject: [PATCH] Computation of studiengang_nr refined #1

---
 .../costage_st_studien_aggr_fuellen.sql       | 47 ++++++++++++++++---
 1 file changed, 40 insertions(+), 7 deletions(-)

diff --git a/src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql b/src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql
index 7f37ec4..c0a60ab 100644
--- a/src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql
+++ b/src-modules/module/costage/hilfstabellen/costage_st_studien_aggr_fuellen.sql
@@ -177,8 +177,19 @@ and T.st_studiengang_nr_msg=tmp_studien2.st_studiengang_nr_msg
 )
 ;
 
+select  distinct st_studiengang_nr_msg, matrikelnummer, semester  
+into temp   temp_tmp_studien2 
+from tmp_studien2 
+where primaerflag =1 
+and studiengangs_typ_kb ='TSG';
 
-delete from costage_st_studien_aggr;
+
+delete from costage_st_studien_aggr
+--provisorisch in Testphase:
+where ${COSTAGE_STUDENT_FILTER};
+
+
+;
 insert into costage_st_studien_aggr(
 st_studium_nr,
        st_studstamm_nr,
@@ -213,12 +224,32 @@ select st_studium_nr,
        hssem,
        primaerflag,
 --Nun ist studiengang_nr=1 definiert. Die restlichen werden mit RANK ermittelt:
-        (case when studiengang_nr is not null then studiengang_nr
-       else 
-       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,
+        -- (case when studiengang_nr is not null then studiengang_nr
+       -- else 
+       -- 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,
+ (case when studiengangs_typ_kb ='TSG' then
+  (case when primaerflag =1
+    then 1
+    else
+      (case when st_studiengang_nr_msg in (select distinct T1.st_studiengang_nr_msg from tmp_studien2 T1, temp_tmp_studien2 T2
+        where  T1.matrikelnummer = T2.matrikelnummer and T1.st_studiengang_nr_msg = T2.st_studiengang_nr_msg  and T1.semester = T2.Semester)
+        then 1
+        else
+          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 )end)
+  else
+    (case when primaerflag =1
+    then 1
+    else
+    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) 
+    end )  as studiengang_nr,
         (case when primaerflag =1 then 1
        else 
        dense_rank () over (partition by semester, st_studstamm_nr,studiengang_nr  
@@ -237,4 +268,6 @@ select st_studium_nr,
        
 drop table tmp_studien2;
 drop table tmp_primaer_msg;
+drop table temp_tmp_studien2;
+