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Ñòàòèñòèêà LiveInternet.ru: ïîêàçàíî êîëè÷åñòâî õèòîâ è ïîñåòèòåëåé
Ñîçäàí: 16.03.2006
Çàïèñåé:
Êîììåíòàðèåâ:
Íàïèñàíî: 4


Ïîìîùü â ñîñòàâëåíèè çàïðîñà

Âîñêðåñåíüå, 10 Àâãóñòà 2014 ã. 03:14 + â öèòàòíèê
Âå÷åð äîáðûé.

MS Access 2003. Èìååì òàáëèöó brigs: Êàðòèíêà ñ äðóãîãî ñàéòà.
Íóæíî ñäåëàòü âûáîðêó äàííûõ ñëåäóþùèì îáðàçîì: ñãðóïïèðîâàòü âñå çàïèñè ïî number_brig, è èç êàæäîé ãðóïïû number_brig âûáðàòü ñòðîêó ñ ìàêñèìàëüíûì çíà÷åíèåì äàòû.

P.S. Çàïðîñ óæå ñôîðìèðîâàí (òîëüêî âîò íåïðàâèëüíî ðàáîòàåò):
SELECT brigs.number_brig, cars.lic_plate, cars.name, brigs.id, mounts.fio, mounts_1.fio, brigs.date_edit
FROM cars INNER JOIN (mounts AS mounts_1 INNER JOIN (mounts INNER JOIN brigs ON mounts.id=brigs.mount_id_taskmaster) ON mounts_1.id=brigs.mount_id_driver) ON cars.id=brigs.car_id
GROUP BY brigs.number_brig, cars.lic_plate, cars.name, brigs.id, mounts.fio, mounts_1.fio, brigs.date_edit
HAVING brigs.date_edit In (SELECT Max(brigs.date_edit) AS [Max-date_edit] FROM brigs  GROUP BY brigs.number_brig)


Ðåçóëüòàò âûïîëíåíèÿ çàïðîñà:
Êàðòèíêà ñ äðóãîãî ñàéòà.
 ðåçóëüòàòå ðàáîòû çàïðîñà íå äîëæíî áûòü ñòðîêè ñ id = 10 (ïðîâåðÿë íà äðóãèõ äàííûõ, âåçäå ïîÿâëÿþòñÿ ïîäîáíûå ñòðîêè)

http://www.sql.ru/forum/1109872/pomoshh-v-sostavlenii-zaprosa


 

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