Aggregation / Summing problems

Question

Hello guys!
I am currently working on a tricky statement and don't know how to achieve a conditional summing.
I have the following statement:
SELECT decode(n.BA_KATNEW, 'hG','Heimische Gesellschaftsfremde','xi','Nebenbaumart + B + S', 'P','Pionierbaumart', 'H', 'Hauptbaumart', 'nG', 'Nicht heimische Gesellschaftsfremde') BA_FINALNAME, decode(n.BA_KATNEW, 'hG','hG','xi','N + B + S', 'P', 'P', 'H', 'H','nG','nG') BA_FINAL, n.AGGRESULT FROM (
SELECT ba_kat, ba_katnew, Calc, (sum(m.Calc) over (partition by ba_katnew)) AGGRESULT from (
SELECT
decode(ba_kat,'P','P','B','xi','N','xi','S','xi','hG','hG','H','H','nG','nG') ba_katnew, z.ba_lang, z.ba_kat, z.BA_GRUPPE, z.STR_LRT_MAIN, z.Bestand, z.Zaehlfaktor, z.Ergebnis, z.Prozent, sum(z.Ergebnis) over (partition by z.STR_LRT_MAIN) TOTAL,
round((sum(z.PROZENT) over (partition by z.ba_kat)),2) CALC
from
(select
b.ba_lang,
x.ba_kat,
p.STR_LRT_MAIN,
sum(v.DBL_Bestand) Bestand,
:P2010_ZAEHLFAKTOR_BESTAND Zaehlfaktor,
sum(v.DBL_Bestand) * :P2010_ZAEHLFAKTOR_BESTAND Ergebnis,
round(SUM(v.DBL_Bestand) * 100 / (SELECT SUM(v2.DBL_Bestand)
                                   FROM   VT_TBL_BESTAND     v2,
                                          VT_PUNKTDATEN_JOIN p2
                                   WHERE  (p2.cnt_gebiet = :P2010_cnt_GEBIET)
                                   AND    (v2.LNG_INV_PT_ID = p2.INV_PT_ID_SUB)
                                   AND    (p2.str_lrt_main = :p2010_str_lrt)
                                   AND    (p2.int_status_sub = 3)),2) AS Prozent,
decode(b.BA_GRUPPE,1,'Ba-Grp. 1',2,'Ba-Grp. 2',3,'Ba-Grp 3',4,'Ba-Grp. 4',5,'Ba-Grp. 5',6,'Ba-Grp. 6',7,'Ba-Grp. 7',8,'Ba-Grp. 8') BA_GRUPPE
from
VT_TBL_BESTAND v,
VT_PUNKTDATEN_JOIN p,
vt_tbl_baumart b,
VT_TBL_MATRIX x
where
(p.cnt_gebiet = :P2010_cnt_GEBIET)
and (v.lng_baumart = b.cnt_baumart)
and (v.LNG_INV_PT_ID = p.INV_PT_ID_SUB)
and (p.str_lrt_main = :p2010_str_lrt)
and (p.int_status_sub = 3)
and (x.LRT_CLASS=:p2010_str_lrt)
AND (x.LNG_BAUMART=v.LNG_BAUMART)
group by
b.BA_LANG,
x.BA_KAT,
BA_GRUPPE,
p.STR_LRT_MAIN) z) m group by ba_kat, ba_katnew, Calc) n GROUP BY BA_KATNEW, AGGRESULTIt produces an output such as:
BA_FINALNAME BA_FINAL AGGRESULT
"Heimische Gesellschaftsfremde"     "hG"     "3,76"
"Nebenbaumart + B + S"     "N + B + S"     "7,3"
"Pionierbaumart"     "P"     " 0,42"
"Hauptbaumart"      "H"     "88,54"
The final demand on this query is to sum AGGRESULT for the following combinations in one column:
BA_FINAL= H+N
BA_FINAL= H+N+P
BA_FINAL= N+P
and returning the AGGRESULT values for all other values in BA_FINAL as they are.
Is this even possible? I know my statement is a little confusing but I hope you're not confused and give me a chance!
I'd appreciate your help, since I don't know how to build sums over groups in one column.
Regards,
Sebastian
Edited by: skahlert on 15.10.2009 15:22

Answer 1

Good morning Frank!
Well, the query is working thanks to your help. However, I wanted to assign some strings to the new categorized tree species i.e. 'H', 'N+B+S' etc.
Hence I wanted to use the decode function once more but ultimately receive a group by expression error. I actually thought it should work like that? Can you please have a look at it again and tell me what I did wrong!?
By the way, thanks for teaching me how to write the code! Really appreciate it!
The line is her:
decode(x.ba_final,'N+B+S / H / P', 'Haupt- + Neben- + Pionierbaumart','N+B+S / H', 'Haupt- + Nebenbaumart incl. B+S','N / P','Nadelbaumarten² mit > 50% Anteil', 'H', 'Hauptbaumart', 'nG', 'Nicht heimische Gesellschaftsfremde', 'hG', 'Heimische Gesellschaftsfremde') ba_finalnamewhile the full code looks like:
WITH   special_grp            AS
     SELECT 'H' AS ba_final, 'N+B+S / H / P' AS grp     FROM dual     UNION ALL
     SELECT 'N + B + S', 'N+B+S / H / P'             FROM dual     UNION ALL
     SELECT 'P', 'N+B+S / H / P'             FROM dual     UNION ALL
     SELECT 'H', 'N+B+S / H'             FROM dual     UNION ALL
     SELECT 'N + B + S', 'N+B+S / H'             FROM dual     UNION ALL
     SELECT 'N', 'N / P'                  FROM dual     UNION ALL
     SELECT 'P', 'N / P'                  FROM dual UNION ALL
        SELECT 'H', 'H'                          FROM dual UNION ALL
        SELECT 'nG', 'nG'                  FROM dual UNION ALL
        SELECT 'hG', 'hG'                  FROM dual
SELECT       NVL ( s.grp
           , x.ba_final
           )               AS ba_final
,       SUM (x.aggresult)     AS aggresult, decode(x.ba_final,'N+B+S / H / P', 'Haupt- + Neben- + Pionierbaumart','N+B+S / H', 'Haupt- + Nebenbaumart incl. B+S','N / P','Nadelbaumarten² mit > 50% Anteil', 'H', 'Hauptbaumart', 'nG', 'Nicht heimische Gesellschaftsfremde', 'hG', 'Heimische Gesellschaftsfremde') ba_finalname
FROM                 (SELECT decode(n.BA_KATNEW, 'hG','Heimische Gesellschaftsfremde','xi','Nebenbaumart + B + S', 'P','Pionierbaumart', 'H', 'Hauptbaumart', 'nG', 'Nicht heimische Gesellschaftsfremde') BA_FINALNAME, decode(n.BA_KATNEW, 'hG','hG','xi','N + B + S', 'P', 'P', 'H', 'H','nG','nG') BA_FINAL, n.AGGRESULT FROM (
SELECT ba_kat, ba_katnew, Calc, (sum(m.Calc) over (partition by ba_katnew)) AGGRESULT from (
SELECT
decode(ba_kat,'P','P','B','xi','N','xi','S','xi','hG','hG','H','H','nG','nG') ba_katnew, z.ba_lang, z.ba_kat, z.BA_GRUPPE, z.STR_LRT_MAIN, z.Bestand, z.Zaehlfaktor, z.Ergebnis, z.Prozent, sum(z.Ergebnis) over (partition by z.STR_LRT_MAIN) TOTAL,
(sum(z.PROZENT) over (partition by z.ba_kat)) CALC
from
(select
b.ba_lang,
x.ba_kat,
p.STR_LRT_MAIN,
sum(v.DBL_Bestand) Bestand,
:P2010_ZAEHLFAKTOR_BESTAND Zaehlfaktor,
sum(v.DBL_Bestand) * :P2010_ZAEHLFAKTOR_BESTAND Ergebnis,
SUM(v.DBL_Bestand) * 100 / (SELECT SUM(v2.DBL_Bestand)
                                   FROM   VT_TBL_BESTAND     v2,
                                          VT_PUNKTDATEN_JOIN p2
                                   WHERE  (p2.cnt_gebiet = :P2010_cnt_GEBIET)
                                   AND    (v2.LNG_INV_PT_ID = p2.INV_PT_ID_SUB)
                                   AND    (p2.str_lrt_main = :p2010_str_lrt)
                                   AND    (p2.int_status_sub = 3)) AS Prozent,
decode(b.BA_GRUPPE,1,'Ba-Grp. 1',2,'Ba-Grp. 2',3,'Ba-Grp 3',4,'Ba-Grp. 4',5,'Ba-Grp. 5',6,'Ba-Grp. 6',7,'Ba-Grp. 7',8,'Ba-Grp. 8') BA_GRUPPE
from
VT_TBL_BESTAND v,
VT_PUNKTDATEN_JOIN p,
vt_tbl_baumart b,
VT_TBL_MATRIX x
where
(p.cnt_gebiet = :P2010_cnt_GEBIET)
and (v.lng_baumart = b.cnt_baumart)
and (v.LNG_INV_PT_ID = p.INV_PT_ID_SUB)
and (p.str_lrt_main = :p2010_str_lrt)
and (p.int_status_sub = 3)
and (x.LRT_CLASS=:p2010_str_lrt)
AND (x.LNG_BAUMART=v.LNG_BAUMART)
group by
b.BA_LANG,
x.BA_KAT,
BA_GRUPPE,
p.STR_LRT_MAIN) z) m group by ba_kat, ba_katnew, Calc) n GROUP BY BA_KATNEW, AGGRESULT
)     x
LEFT OUTER JOIN      special_grp     s     ON     s.ba_final     = x.ba_final
GROUP BY  NVL ( s.grp
           , x.ba_final
ORDER BY  UPPER (ba_final)Regards,
Sebastian