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| Subject | Re: jak usunąć (unset) element tablicy tablic |
| From | Rafal Podsiadly <spinacz24@gmail.com> |
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Zacznijmy od poczatku pobierasz dane z bazy. A moze pobrac unikalne rekordy. Juz na poziomie wybierania odpada nadmiarowosc. Dodatkowo zamiast porownywac kazdy z elementow osobno mozesz je polaczyc implodem i porownywac cale wyniki.aby zrobic szybciej. Jesli potrzebujesz znalezc duplikaty to lepiej zrobic to na zapytaniu groub by i count. Wtedy dostaniesz tylko zduplikowane rekordy. Having poczytaj o tym. Wszystko mozesz miec unikalne. Rekordy wszystkie select distinct * from db.table Rekordy zguplikowane Select *,count(id), group by rekordy wybrane having count(id)<1 Ps. Pisze z telefonu przepraszam za bledy.
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jak usunąć (unset) element tablicy tablic jivanmukta@poczta.onet.pl - 2016-03-14 12:49 -0700
Re: jak usunąć (unset) element tablicy tablic ww <ww@o2.pl> - 2016-03-15 08:18 +0100
Re: jak usunąć (unset) element tablicy tablic jivanmukta@poczta.onet.pl - 2016-03-15 04:24 -0700
Re: jak usunąć (unset) element tablicy tablic jivanmukta@poczta.onet.pl - 2016-03-15 04:35 -0700
Re: jak usunąć (unset) element tablicy tablic ww <ww@o2.pl> - 2016-03-15 12:47 +0100
Re: jak usunąć (unset) element tablicy tablic jivanmukta@poczta.onet.pl - 2016-03-15 09:55 -0700
Re: jak usunąć (unset) element tablicy tablic Rafal Podsiadly <spinacz24@gmail.com> - 2016-03-16 00:30 -0700
Re: jak usunąć (unset) element tablicy tablic jivanmukta@poczta.onet.pl - 2016-03-16 04:18 -0700
Re: jak usunąć (unset) element tablicy tablic Rafal Podsiadly <spinacz24@gmail.com> - 2016-03-16 12:50 -0700
Re: jak usunąć (unset) element tablicy tablic jivanmukta@poczta.onet.pl - 2016-03-18 05:03 -0700
Re: jak usunąć (unset) element tablicy tablic Rafal Podsiadly <spinacz24@gmail.com> - 2016-03-19 00:04 -0700
Re: jak usunąć (unset) element tablicy tablic jivanmukta@poczta.onet.pl - 2016-03-20 21:13 -0700
Re: jak usunąć (unset) element tablicy tablic Rafal Podsiadly <spinacz24@gmail.com> - 2016-03-21 08:56 -0700
Re: jak usunąć (unset) element tablicy tablic jivanmukta@poczta.onet.pl - 2016-03-22 09:19 -0700
Re: jak usunąć (unset) element tablicy tablic Rafal Podsiadly <spinacz24@gmail.com> - 2016-03-29 09:58 -0700
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