{"id":102412,"date":"2021-11-28T09:36:50","date_gmt":"2021-11-28T07:36:50","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-sqlite-3-37"},"modified":"2021-11-28T09:36:50","modified_gmt":"2021-11-28T07:36:50","slug":"vypusk-subd-sqlite-3-37","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/vypusk-subd-sqlite-3-37","title":{"rendered":"Versione del DBMS SQLite 3.37","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>\u00c8 stata pubblicata la versione 3.37 di SQLite, un database management system leggero progettato come una libreria collegabile. Il codice di SQLite \u00e8 distribuito come dominio pubblico, ovvero pu\u00f2 essere utilizzato senza restrizioni e gratuitamente per qualsiasi scopo. Il supporto finanziario per gli sviluppatori di SQLite \u00e8 fornito da un consorzio creato appositamente, che include aziende come Adobe, Oracle, Mozilla, Bentley e Bloomberg.     <\/p>\n<p>Variazioni principali:  <\/p>\n<ul>\n<li class=\"l\"> \u00c8 stata aggiunta la supporto per la creazione di tabelle con l'attributo \u00abSTRICT\u00bb, che richiede la specifica obbligatoria del tipo durante la dichiarazione delle colonne e applica un rigoroso controllo della corrispondenza dei tipi dei dati inseriti nelle colonne. Quando questo flag \u00e8 attivato, SQLite restituir\u00e0 un errore se non \u00e8 possibile convertire i dati specificati nel tipo della colonna. Ad esempio, se la colonna \u00e8 creata come \u00abINTEGER\u00bb, la trasmissione di un valore stringa \u2018123\u2019 porter\u00e0 all'aggiunta del numero 123, ma un tentativo di specificare \u2018xyz\u2019 si concluder\u00e0 con un errore.\n<li class=\"l\"> Nell'operazione \u00abALTER TABLE ADD COLUMN\u00bb \u00e8 stata aggiunta una verifica delle condizioni di esistenza delle righe durante l'aggiunta di colonne con verifiche basate su espressioni \u00abCHECK\u00bb o con condizioni \u00abNOT NULL\u00bb.\n<li class=\"l\"> \u00c8 stata implementata l'espressione \u00abPRAGMA table_list\u00bb per restituire informazioni su tabelle e viste.\n<li class=\"l\"> Nell'interfaccia della riga di comando \u00e8 stata implementata il comando \u00ab.connection\u00bb, che consente di mantenere pi\u00f9 connessioni al database contemporaneamente.\n<li class=\"l\"> \u00c8 stato aggiunto il parametro \u00ab--safe\u00bb, che disabilita i comandi CLI e le espressioni SQL che consentono di eseguire operazioni con file di database diversi da quello specificato nella riga di comando.\n<li class=\"l\"> Nel CLI \u00e8 stata ottimizzata la performance della lettura delle espressioni SQL, spezzate su pi\u00f9 righe.\n<li class=\"l\"> Sono state aggiunte le funzioni sqlite3_autovacuum_pages(), sqlite3_changes64() e sqlite3_total_changes64().\n<li class=\"l\"> Nel pianificatore di query \u00e8 stata garantita l'ignoranza delle espressioni \u00abORDER BY\u00bb nelle sottoquery e nelle viste, se la rimozione di tali espressioni non altera la semantica della query.\n<li class=\"l\"> \u00c8 stata modificata l'estensione generate_series(START,END,STEP), con il primo parametro ( \u00abSTART\u00bb ) reso obbligatorio. Per ripristinare il comportamento precedente \u00e8 possibile ricompilare con l'opzione \u00ab-DZERO_ARGUMENT_GENERATE_SERIES\u00bb.\n<li class=\"l\"> \u00c8 stato ridotto il consumo di memoria per la memorizzazione dello schema del database.    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56244\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 SQLite 3.37, \u043b\u0435\u0433\u043a\u043e\u0432\u0435\u0441\u043d\u043e\u0439 \u0421\u0423\u0411\u0414, \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0439 \u0432 \u0432\u0438\u0434\u0435 \u043f\u043e\u0434\u043a\u043b\u044e\u0447\u0430\u0435\u043c\u043e\u0439 \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438. \u041a\u043e\u0434 SQLite \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0435 \u0434\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 (public domain), \u0442.\u0435. \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0431\u0435\u0437 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439 \u0438 \u0431\u0435\u0437\u0432\u043e\u0437\u043c\u0435\u0437\u0434\u043d\u043e \u0432 \u043b\u044e\u0431\u044b\u0445 \u0446\u0435\u043b\u044f\u0445. \u0424\u0438\u043d\u0430\u043d\u0441\u043e\u0432\u0443\u044e \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 SQLite \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0441\u043e\u0437\u0434\u0430\u043d\u043d\u044b\u0439 \u043a\u043e\u043d\u0441\u043e\u0440\u0446\u0438\u0443\u043c, \u0432 \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0432\u0445\u043e\u0434\u044f\u0442 \u0442\u0430\u043a\u0438\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438, \u043a\u0430\u043a Adobe, Oracle, Mozilla, Bentley \u0438 Bloomberg. \u041e\u0441\u043d\u043e\u0432\u043d\u044b\u0435 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f: \u0414\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u0430 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0442\u0430\u0431\u043b\u0438\u0446 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-102412","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - 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