{"id":105659,"date":"2022-11-21T15:36:52","date_gmt":"2022-11-21T13:36:52","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-sqlite-3-40"},"modified":"2022-11-21T15:36:52","modified_gmt":"2022-11-21T13:36:52","slug":"vypusk-subd-sqlite-3-40","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/vypusk-subd-sqlite-3-40","title":{"rendered":"Izlazak SQLite DBMS 3.40","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Objavljen je SQLite 3.40, lagani DBMS u obliku priklju\u010dne biblioteke. SQLite kod je dostupno kao javno vlasni\u0161tvo (public domain), \u0161to zna\u010di da se mo\u017ee koristiti bez ograni\u010denja i besplatno u bilo koje svrhe. Financijsku podr\u0161ku programerima SQLite pru\u017ea posebno osnovani konzorcij koji uklju\u010duje tvrtke poput Adobe, Oracle, Mozilla, Bentley i Bloomberg.     <\/p>\n<p>Glavne promjene:  <\/p>\n<ul>\n<li class=\"l\"> Implementirana je eksperimentalna mogu\u0107nost kompilacije SQLite u me\u0111ukod WebAssembly, sposoban za pokretanje u web pregledniku i prikladan za rad s bazama podataka iz web aplikacija na jeziku JavaScript. Web programerima je dostupan visokouzorni objektno-orijentirani interfejs za rad s podacima u stilu sql.js ili Node.js, obavijeni nad nisko razine C API i API temeljen na mehanizmu Web Worker, koji omogu\u0107uje stvaranje asinkronih obra\u0111iva\u010da koji se izvr\u0161avaju u odvojenim nitima. Podaci koje web aplikacije pohranjuju u WASM verziji SQLite mogu se spremati na strani klijenta pomo\u0107u OPFS (Origin-Private FileSystem) ili API window.localStorage.\n<li class=\"l\"> Dodano je pro\u0161irenje za oporavak, namijenjeno za vra\u0107anje podataka iz o\u0161te\u0107enih datoteka s baze podataka. U komandnoj liniji za oporavak koristi se naredba &#171;.recover&#187;.\n<li class=\"l\"> Pobolj\u0161an je rad planera upita. Uklonjena su ograni\u010denja pri kori\u0161tenju indeksa s tablicama koje imaju vi\u0161e od 63 stupca (ranije se kod operacija sa stupcima \u010diji redni broj prema\u0161uje 63, indeksiranje nije primjenjivano). Pobolj\u0161ano je indeksiranje vrijednosti kori\u0161tenih u izrazima. Prekinuto je u\u010ditavanje velikih nizova i blobova s diska pri obradi operatora NOT NULL i IS NULL. Isklju\u010dena je materializacija prikaza za koje se potpuno skeniranje izvr\u0161ava samo jednom.\n<li class=\"l\"> U kodnoj bazi umjesto tipa &#171;char *&#187; za predstavljanje imena datoteka kori\u0161ten je zaseban tip sqlite3_filename.\n<li class=\"l\"> Dodana je unutarnja funkcija sqlite3_value_encoding().\n<li class=\"l\"> Dodana je opcija SQLITE_DBCONFIG_DEFENSIVE, koja zabranjuje promjenu verzije sheme pohrane podataka.\n<li class=\"l\"> U implementaciju parametra &#171;PRAGMA integrity_check&#187; dodani su dodatni testovi. Na primjer, tablice bez oznake STRICT ne bi trebale sadr\u017eavati numeri\u010dke vrijednosti u stupcima s tipom TEXT i string vrijednosti s brojevima u stupcima s tipom NUMERIC. Tako\u0111er je dodana provjera ispravnosti redoslijeda redaka u tablicama s oznakom &#171;WITHOUT ROWID&#187;.\n<li class=\"l\"> U izrazu &#171;VACUUM INTO&#187; uzeta su u obzir pode\u0161avanja &#171;PRAGMA synchronous&#187;.\n<li class=\"l\"> Dodana je opcija sastavljanja SQLITE_MAX_ALLOCATION_SIZE koja omogu\u0107ava ograni\u010davanje veli\u010dine blokova prilikom dodjele memorije.\n<li class=\"l\"> Ugra\u0111eni algoritam za generiranje pseudo-slu\u010dajnih brojeva u SQLite promijenjen je s kori\u0161tenja strujnog \u0161ifriranja RC4 na Chacha20.\n<li class=\"l\"> Dozvoljeno je kori\u0161tenje indeksa s istim imenima u razli\u010ditim shemama podataka.\n<li class=\"l\"> Vr\u0161i se optimizacija performansi koja je omogu\u0107ila smanjenje optere\u0107enja CPU-a za otprilike 1% pri tipi\u010dnoj aktivnosti.      <\/ul>\n<p>Izvor: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=58162\">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 3.40, \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: \u0420\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u0430\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043a\u043e\u043c\u043f\u0438\u043b\u044f\u0446\u0438\u0438 [&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-105659","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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