{"id":4312,"date":"2020-10-30T23:27:14","date_gmt":"2020-10-30T22:27:14","guid":{"rendered":"https:\/\/webhosting.de\/?p=4312"},"modified":"2020-10-30T23:27:14","modified_gmt":"2020-10-30T22:27:14","slug":"serwer-bazy-danych","status":"publish","type":"post","link":"https:\/\/webhosting.de\/pl\/datenbank-server\/","title":{"rendered":"Serwer bazy danych"},"content":{"rendered":"<p>Serwer bazy danych mo\u017ce by\u0107 wdro\u017cony jako oprogramowanie lub jako sprz\u0119t w systemie baz danych. W wi\u0119kszo\u015bci przypadk\u00f3w jest to cz\u0119\u015b\u0107 wielopoziomowej architektury serwerowej. Na serwerze bazy danych znajduje si\u0119 jeden lub wi\u0119cej system\u00f3w baz danych. Dost\u0119p do serwera bazy danych mo\u017cna uzyska\u0107 za po\u015brednictwem serwera aplikacji, kt\u00f3ry zawiera oprogramowanie aplikacyjne. Na przyk\u0142ad, serwery baz danych udost\u0119pniaj\u0105 dane firmowe komputerom w sieci za po\u015brednictwem program\u00f3w u\u017cytkowych. Funkcjonuj\u0105 one jako w\u0119z\u0142y w architekturze sieciowej firmy. Sprz\u0119t, oprogramowanie i mo\u017cliwo\u015bci aplikacyjne serwer\u00f3w baz danych to specjalno\u015b\u0107 bran\u017cy IT. Informatycy posiadaj\u0105cy wiedz\u0119 z zakresu architektury serwer\u00f3w i technologii sieciowych wyspecjalizowali si\u0119 w konserwacji, piel\u0119gnacji i odzyskiwaniu serwer\u00f3w baz danych po awarii systemu.<\/p>\n<h3>Programowy serwer baz danych<\/h3>\n<p>Systemy baz danych, takie jak Oracle, Firebird, <a href=\"https:\/\/webhosting.de\/pl\/emails-microsoft-werden-abgewiesen\/\">Microsoft<\/a> Serwer SQL lub <a href=\"https:\/\/webhosting.de\/pl\/mysql\/\">MySQL<\/a> maj\u0105 ogromn\u0105 r\u00f3\u017cnorodno\u015b\u0107 zastosowa\u0144. Znajduj\u0105 one zastosowanie w korporacjach, \u015brednich firmach oraz przez u\u017cytkownik\u00f3w prywatnych. Przed zakupem i wdro\u017ceniem sieci z serwerem bazy danych wa\u017cne jest, aby planowa\u0107 z wyprzedzeniem. Rola serwera bazy danych w dostarczaniu danych powinna by\u0107 precyzyjnie okre\u015blona. Z prasy technicznej i Internetu mo\u017cna dowiedzie\u0107 si\u0119, czy oprogramowanie aplikacyjne jest bezb\u0142\u0119dnie kompatybilne z systemem bazy danych lub serwerem bazy danych. B\u0142\u0119dy w dostarczaniu lub przekazywaniu danych prowadz\u0105 do zak\u0142\u00f3ce\u0144 w procesach i do nieprawid\u0142owych wynik\u00f3w pracy.<\/p>\n<h3>Serwer bazy danych w postaci sprz\u0119tu<\/h3>\n<p>W ma\u0142ych i \u015brednich systemach baz danych serwer bazy danych jest zbudowany dok\u0142adnie tak samo jak normalny serwer sieciowy. Jednostki pami\u0119ci masowej, po\u0142\u0105czenia i CPU s\u0105 przeznaczone do wdro\u017cenia w sieci. W du\u017cych sieciach \u015brednich firm i korporacji, specjalnie skonstruowane komputery s\u0105 u\u017cywane jako serwery i jako serwery baz danych.<\/p>\n<h3>\u0179r\u00f3d\u0142a b\u0142\u0119d\u00f3w podczas korzystania z serwer\u00f3w baz danych<\/h3>\n<p>Serwer bazy danych jest nara\u017cony na ogromne obci\u0105\u017cenia podczas pracy. Zakres mo\u017cliwych b\u0142\u0119d\u00f3w rozci\u0105ga si\u0119 od przegrzania w wyniku ci\u0105g\u0142ej pracy, b\u0142\u0119d\u00f3w w oprogramowaniu bazy danych, mechanicznych uszkodze\u0144 no\u015bnika pami\u0119ci, po uszkodzenia spowodowane przez wirusy komputerowe i ataki haker\u00f3w. Przed rozpocz\u0119ciem odzyskiwania danych nale\u017cy dok\u0142adnie okre\u015bli\u0107 \u017ar\u00f3d\u0142o b\u0142\u0119du. B\u0142\u0119dy w oprogramowaniu mo\u017cna w wi\u0119kszo\u015bci przypadk\u00f3w skorygowa\u0107 za pomoc\u0105 narz\u0119dzi aplikacji bazodanowej.<\/p>\n<p>Skutki uszkodze\u0144 mechanicznych lub atak\u00f3w haker\u00f3w powinny by\u0107 usuwane przez specjalist\u00f3w. Firmy informatyczne specjalizuj\u0105ce si\u0119 w technice sieciowej i serwerowej dysponuj\u0105 odpowiednimi pomieszczeniami i wyposa\u017ceniem technicznym do profesjonalnego odzyskiwania danych. Kopia zapasowa <a href=\"https:\/\/webhosting.de\/pl\/personenbezogene-daten-sozialen-netzwerken\/\">Dane<\/a> z serwera bazy danych mog\u0105 by\u0107 obs\u0142ugiwane z wyprzedzeniem przez regularne tworzenie kopii zapasowych. Pomaga to w odzyskiwaniu danych i minimalizuje szkody powodowane przez awarie komputer\u00f3w.<\/p>\n<h3>Wolne oprogramowanie czy znane firmy programistyczne?<\/h3>\n<p>Produkty renomowanych firm programistycznych, takich jak Oracle, Microsoft czy SAP, charakteryzuj\u0105 si\u0119 doskona\u0142\u0105 funkcjonalno\u015bci\u0105. Ich ceny mog\u0105 przewy\u017csza\u0107 bud\u017cet \u015brednich i ma\u0142ych firm. Oparte na oprogramowaniu serwery baz danych jako freeware mog\u0105 dzia\u0142a\u0107 tak samo dobrze jak drogie produkty lider\u00f3w rynku. MySQL od szwedzkiego producenta oprogramowania o tej samej nazwie zosta\u0142 opracowany w ramach projektu badawczego. Kod \u017ar\u00f3d\u0142owy jest dost\u0119pny za darmo. U\u017cytkowanie jest bezp\u0142atne. Oprogramowanie dla serwera bazy danych Firebird zosta\u0142o opracowane w ramach rozwoju oprogramowania Borlans InterBase. SAP DB jest projektem open source znanego na ca\u0142ym \u015bwiecie producenta oprogramowania z Walldorfu, kt\u00f3ry jest dost\u0119pny bezp\u0142atnie jako serwer baz danych. Wspomniane wy\u017cej serwery baz danych doskonale nadaj\u0105 si\u0119 do administrowania danymi w obszarze backendowym oraz do udost\u0119pniania zasob\u00f3w danych do transferu na stacje robocze. Kompatybilno\u015b\u0107 oprogramowania z modu\u0142ami frontend i istniej\u0105cymi formatami danych powinna by\u0107 sprawdzona przed u\u017cyciem darmowego serwera baz danych.<\/p>","protected":false},"excerpt":{"rendered":"<p>Ein Datenbank Server kann als Software oder als Hardware in einem Datenbanksystem implementiert sein. Er ist in der Mehrzahl der F\u00e4lle Teil einer mehrschichtigen Serverarchitektur. Der Datenbank Server beherbergt ein Datenbanksystem oder mehrere Datenbanksysteme. \u00dcber den sogenannten Applikationsserver, der die Anwendungssoftware beinhaltet, kann auf den Datenbank Server zugegriffen werden. Datenbankserver stellen zum Beispiel Unternehmensdaten \u00fcber 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