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Baza podataka

 
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creep



Joined: 28 Feb 2005
Posts: 45
Location: zagreb

PostPosted: 29.11.2005 13:59    Post subject: Baza podataka Add user to your forum ignore list Reply with quote

Imam jedno pitanje koje cete sigurno barrem neko znat .....

Ovako izradujem jednu bazu podata za autoskolu normalno sa ono polaznicima instruktorima itd itd ...

e i sada zanima me kako da ja napravim sljedece :

Ja sam napravil npr tabelu za npr ispit iz PP e i sada imam sljedece tamo mogu upisat datum kada se odrzava ispit stavit sve sudionike koji ce sudjelovat tamo i poslje kada taj datum prode odnosno ispit samo se vratim i odaberem za pojedinog polaznika dali je proso nije proso ili odusto ..

šta mene sada zanima dali je moguce nekako pomocu query-a da ja napravim sljedece da kada npr napise neko odredeno prezime polaznika da mi on napise koliko je puta polagal PP uzimajuci u obzir da je padal ne da nije prolazil . ja sam to nesto isprobaval ali normalno kako sam glup ja sam dobival sumu od svih ukupnih polazinka znaci dobival sam sumu od tog datuma za sve polaznike .. a kako dobis sumu za odredenog polaznika ?



Rolling Eyes Question
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retro_one



Joined: 16 Sep 2003
Posts: 880
Location: DUBRAVA.

PostPosted: 29.11.2005 14:06    Post subject: Add user to your forum ignore list Reply with quote

ne znam kakva ti je struktura tablice...ali mislim da ti treba COUNT funkcija:

SELECT COUNT(*) AS count FROM tablica WHERE uvjet

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creep



Joined: 28 Feb 2005
Posts: 45
Location: zagreb

PostPosted: 29.11.2005 14:17    Post subject: Add user to your forum ignore list Reply with quote

da to bi tako trebalo ic ... ali tako sam ja bil napravil i daval mi je count od svih polaznika koji su taj datum isli na ispit ... kako da odaberem samo jednog i da dam tu mogucnost njima znaci oni utipkaju prezime i dode im tocan broj koliko je puta izasal na ispit .
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retro_one



Joined: 16 Sep 2003
Posts: 880
Location: DUBRAVA.

PostPosted: 29.11.2005 14:22    Post subject: Add user to your forum ignore list Reply with quote

pa stavis mu u where uvjet 'WHERE prezime = 'prezime_koje_trazis'

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creep



Joined: 28 Feb 2005
Posts: 45
Location: zagreb

PostPosted: 29.11.2005 15:29    Post subject: Add user to your forum ignore list Reply with quote

ok tnx probat cu kada dodem doma Smile
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creep



Joined: 28 Feb 2005
Posts: 45
Location: zagreb

PostPosted: 30.11.2005 11:43    Post subject: Add user to your forum ignore list Reply with quote

rijesena stvar hvala na pomoci ali ubiti ja sam krivo napravil relations nisam povezal clientID sa testovima lol Smile malo sam glup Embarassed
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imbrod
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PostPosted: 02.12.2005 15:56    Post subject: Reply with quote

sam ne kuzim kaj ova tema radi u client sideu, trebao bi pogledati u server side i lakse bi pronasao odgovor
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