Hej
Jak poprzednicy do końca nie wiem o co Ci chodzi. Może zamiast case when
wykorzystaj funkcję
COALESCE, która zwraca pierwsza wartość nie Null.
Chyba ze po prostu zapytanie nie zwraca Ci żadnych pozycji wówczas będziesz
miał zawsze null.
Jeśli Ci nie za bardzo pomogłem lub potrzebujesz więcej info wal śmiało na tego
maila
Pozdrawiam
Piotr
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Użytkownik Łukasz Bączek bacze...@o2.pl [firebird-support] napisał
W dniu 12.07.2014 16:01, Mark Rotteveel m...@lawinegevaar.nl
[firebird-support] pisze:
On 12-7-2014 15:57, Łukasz Bączek bacze...@o2.pl [firebird-support] wrote:
Hello,
I have a SQL query:
SELECT
CASE WHEN umowy.numer_umowy IS NULL THEN 0 END AS numer_umowy
FROM umowy
WHERE umowy.data_podpisania IS NOT NULL AND umowy.id_wnioski IN
(SELECT CASE WHEN wnioski.id_wnioski IS NULL THEN 0 END AS id_wnioski
FROM wnioski
LEFT JOIN kategorie_wnioskow ON
kategorie_wnioskow.id_kategorie_wnioskow=wnioski.id_kategorie_wnioskow
WHERE kategorie_wnioskow.id_kategorie_wnioskow_typ=1) AND umowy.rok=2014
How do I stop if NUMER_UMOWY is NULL is returned to 0 and not null
I have read this question multiple times, but I don't understand what
you mean. Could you give an example of data and the result you want to have?
After this query I have the result:
UMOWY.NUMER_UMOWY = NULL
It needs to
UMOWY.NUMER_UMOWY = 0
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