Hello *,
I have a little problem that confuses me. We are gathering values from a table
as a sum to insert them into another table. I also need to get a ranking at
insert (i.e. Highest points will get first place and so on). I tried ton
invole a sequence to qualify the ranking by select at insert.
So I tried the following (smaller example)
select setval('tipp_eval_seq',1);
select sum_user,nextval('tipp_eval_seq')-1 as ranking from tbl_sums order by
ranking desc, user_sum asc;
user_sum | ranking
----------+--------- 46 | 30 45 | 26 44 | 28 43 | 25 42 | 1 41
| 2 39 | 3 38 | 27 36 | 19 35 | 18 34 | 20 31 | 24
30 | 17 29 | 15 28 | 16 27 | 12 26 | 11 25 | 23 24 |
21 23 | 10 19 | 13 16 | 9 12 | 7 11 | 8 10 | 29 8 |
6 7 | 5 6 | 14 2 | 4 1 | 22
(30 rows)
As you can see, the sums are sorted correctly but the ranking is a mess. I
recongnized that the select seems to follow primarily the internal table
order. Is there any way to solve this nicely. Hints and solutions are
appreciated.
Thanks in advance
-Andreas
--
Andreas Schmitz - Phone +49 201 8501 318
Cityweb-Technik-Service-Gesellschaft mbH
Friedrichstr. 12 - Fax +49 201 8501 104
45128 Essen - email a.schmitz@cityweb.de
