{"id":99375,"date":"2021-03-07T16:22:42","date_gmt":"2021-03-07T14:22:43","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/subd-dolt-pozvolyayushhaya-manipulirovat-dannymi-v-stile-git"},"modified":"2021-03-07T16:22:42","modified_gmt":"2021-03-07T14:22:43","slug":"subd-dolt-pozvolyayushhaya-manipulirovat-dannymi-v-stile-git","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/news\/subd-dolt-pozvolyayushhaya-manipulirovat-dannymi-v-stile-git","title":{"rendered":"Database Dolt, die gegevens kan manipuleren in Git-stijl","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Het Dolt-project ontwikkelt een database die SQL-ondersteuning combineert met versiebeheermiddelen in de stijl van Git. Dolt stelt gebruikers in staat om tabellen te klonen, forks te maken en tabellen samen te voegen, evenals push- en pull-operaties uit te voeren, vergelijkbaar met acties in een git-repository. De database ondersteunt daarnaast SQL-query's en is compatibel met MySQL op het niveau van clientinterfaces. De code van het project is geschreven in de programmeertaal Go en wordt verspreid onder de Apache 2.0-licentie.    <\/p>\n<p>De mogelijkheden voor gegevensversiebeheer in de database maken het mogelijk om de herkomst van gegevens te volgen - de koppeling aan commits biedt de mogelijkheid om een status vast te leggen die onafhankelijk van de huidige toestand op elk moment kan worden herhaald op andere systemen. Daarnaast kunnen gebruikers door de geschiedenis navigeren, wijzigingen in tabellen volgen met SQL zonder back-ups te hoeven vergelijken, wijzigingen auditen en queries opstellen die gegevens op een bepaald moment dekken.      <center><img decoding=\"async\" alt=\"Database Dolt, die gegevens kan manipuleren in Git-stijl\" src=\"\/wp-content\/uploads\/2021\/03\/9021513a51ad7a9cd21fe3514b295369.png\" style=\"display:block;margin: 0 auto;\" \/><\/center>          <\/p>\n<p>De DBMS biedt twee werkmodi - Offline en Online. Na de omzetting naar offline wordt de inhoud van de database toegankelijk als een repository, waarmee acties kunnen worden uitgevoerd met behulp van een git-achtige commandoregeltool. Dit werkproces lijkt veel op git, met als belangrijkste verschil dat wijzigingen niet voor bestanden, maar voor de inhoud van tabellen worden gevolgd. Via de aangeboden CLI-interface kunnen gegevens vanuit CSV- of JSON-bestanden worden ge\u00efmporteerd, commits met wijzigingen worden toegevoegd, verschillen tussen versies worden weergegeven, branches worden aangemaakt, tags worden ingesteld, push-verzoeken naar externe servers worden uitgevoerd en wijzigingen van andere deelnemers worden samengevoegd.        <\/p>\n<p>Indien gewenst kunnen gegevens worden gehost in de DoltHub-directory, die kan worden gezien als een soort GitHub voor het hosten van gegevens en samenwerking aan gegevens. Gebruikers kunnen forks van gegevensrepositories maken, hun wijzigingen voorstellen en samenvoegen met hun gegevens. Bijvoorbeeld, in DoltHub zijn verschillende databases te vinden met statistieken over het coronavirus, verzamelingen van geannoteerde gegevens voor machine learning-systemen, taall lexicons, afbeeldingen verzamelingen, datasets voor objectclassificatie en informatie over toewijzing. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/nl\/lir\/ipv4\/\"   title=\"IP-adressen\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"831\">IP-adressen<\/a>.    <\/p>\n<p>In de modus 'online' wordt de Dolt SQL Server gestart, die het mogelijk maakt om met gegevens te werken met behulp van de SQL-taal. De aangeboden interface lijkt op MySQL en kan worden gebruikt via verbindingen met compatibele MySQL-clients of via de CLI-interface. Dolt fungeert daarbij meer als een tool voor gegevensmanipulatie dan als een queriesysteem. Bijvoorbeeld, standaard kan de SQL-server slechts \u00e9\u00e9n actieve gebruikerverbinding naar de repository die zich in de huidige directory bevindt, verwerken (dit gedrag kan via instellingen worden aangepast). <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/nl\/server\/dts-los-angeles\/\"   title=\"de server\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3697\">de server<\/a> naar een alleen-lezen modus. Veel acties gerelateerd aan versiebeheer kunnen ook via SQL worden uitgevoerd, zoals commits maken of schakelen tussen takken.<br \/>\n<br \/>Bron: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54716\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u0440\u043e\u0435\u043a\u0442 Dolt \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u0421\u0423\u0411\u0414, \u0441\u043e\u0447\u0435\u0442\u0430\u044e\u0449\u0443\u044e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 SQL \u0441\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430\u043c\u0438 \u0432\u0435\u0440\u0441\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0441\u0442\u0438\u043b\u0435 Git. Dolt \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043a\u043b\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0442\u0430\u0431\u043b\u0438\u0446\u044b, \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u0442\u044c \u0444\u043e\u0440\u043a\u0438 \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u0441\u043b\u0438\u044f\u043d\u0438\u044f \u0442\u0430\u0431\u043b\u0438\u0446, \u0430 \u0442\u0430\u043a\u0436\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u0438 push \u0438 pull \u043f\u043e \u0430\u043d\u0430\u043b\u043e\u0433\u0438\u0438 \u0441 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f\u043c\u0438 \u0432 git-\u0440\u0435\u043f\u043e\u0437\u0438\u0442\u043e\u0440\u0438\u0438. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c \u0421\u0423\u0411\u0414 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 SQL-\u0437\u0430\u043f\u0440\u043e\u0441\u044b \u0438 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u0430 \u0441 MySQL \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u043a\u043b\u0438\u0435\u043d\u0442\u0441\u043a\u0438\u0445 \u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u043e\u0432. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":99376,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-99375","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041f\u0440\u043e\u0435\u043a\u0442 Dolt 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