{"id":147391,"date":"2025-11-05T17:11:54","date_gmt":"2025-11-05T15:11:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-sqlite-3-51"},"modified":"2025-11-05T17:11:54","modified_gmt":"2025-11-05T15:11:54","slug":"vypusk-subd-sqlite-3-51","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/vypusk-subd-sqlite-3-51","title":{"rendered":"Lansarea SGBD SQLite 3.51","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A fost publicat release-ul SQLite 3.51, o baz\u0103 de date u\u0219oar\u0103, disponibil\u0103 ca bibliotec\u0103 de leg\u0103tur\u0103. Codul SQLite este distribuit ca domeniu public, adic\u0103 poate fi utilizat f\u0103r\u0103 restric\u021bii \u0219i gratuit \u00een orice scop. Sprijinul financiar pentru dezvoltatorii SQLite este asigurat de un consor\u021biu creat special.     <\/p>\n<p>Modific\u0103ri principale:  <\/p>\n<ul>\n<li class=\"l\"> Au fost ad\u0103ugate noi func\u021bii JSON jsonb_each() \u0219i jsonb_tree(), care se deosebesc de func\u021biile anterioare json_each() \u0219i json_tree() prin faptul c\u0103 returneaz\u0103 valori JSONB pentru date de tip array sau obiect.\n<li class=\"l\"> Codul extensiilor carray \u0219i percentile a fost mutat \u00een fi\u0219ierul de baz\u0103 &#171;sqlite3.c&#187; cu cod \u00eencorporat SQLite. \u00cen mod implicit, aceste extensii sunt dezactivate \u0219i necesit\u0103 parametrii &#171;-DSQLITE_ENABLE_CARRAY&#187; \u0219i &#171;-DSQLITE_ENABLE_PERCENTILE&#187; pentru a fi activate \u00een timpul compil\u0103rii.\n<li class=\"l\"> Interfa\u021ba pentru utilizarea SQLite \u00een scripturi Tcl a fost \u00eembun\u0103t\u0103\u021bit\u0103. Comenzii &#171;eval&#187; i s-a ad\u0103ugat un flag &#171;-asdict&#187; pentru a produce \u0219iruri cu tipul &#171;dict&#187; \u00een loc de &#171;array&#187;. A fost ad\u0103ugat\u0103 op\u021biunea de a \u00eentrerupe func\u021biile utilizatorului pentru a returna valoarea NULL.\n<li class=\"l\"> Modific\u0103ri \u00een interfa\u021ba liniei de comand\u0103:\n<ul>\n<li class=\"l\"> Precizia comenzii &#171;.timer&#187; a fost crescut\u0103 la microsecunde;\n<li class=\"l\"> \u00cen modurile de formatare &#171;box&#187; \u0219i &#171;column&#187; a fost implementat\u0103 suportul pentru caractere cu l\u0103\u021bime dubl\u0103;\n<li class=\"l\"> Comanda &#171;.imposter&#187; poate acum oferi \u00een modul de citire doar tabele imposter (permi\u021b\u00e2nd accesul la datele din index ca la o tabel\u0103), func\u021bion\u00e2nd cu opera\u021bia VACUUM \u0219i f\u0103r\u0103 a necesita s\u0103 fie lansat\u0103 cu flagul &#171;&#8212;unsafe-testing&#187;;\n<li class=\"l\"> Op\u021biunea &#171;&#8212;ifexists&#187; a fost ad\u0103ugat\u0103 \u00een utilitarul sqlite \u0219i la comanda &#171;.open&#187;.\n<li class=\"l\"> L\u0103\u021bimea maxim\u0103 a unui \u0219ir setat\u0103 prin comanda &#171;.width&#187; este limitat\u0103 la 30000 de caractere.   <\/ul>\n<li class=\"l\"> Au fost efectuate optimiz\u0103ri de performan\u021b\u0103:\n<ul>\n<li class=\"l\"> S-a redus \u00eenc\u0103rc\u0103tura pe CPU \u00een timpul finaliz\u0103rii tranzac\u021biilor, restric\u021bionate de accesul \u00een citire;\n<li class=\"l\"> A fost \u00eembun\u0103t\u0103\u021bit\u0103 determinarea opera\u021biunilor de \u00eembinare (JOIN) care nu returneaz\u0103 r\u00e2nduri din cauza absen\u021bei unor r\u00e2nduri \u00een una sau mai multe tabele;\n<li class=\"l\"> Execu\u021bia subinterog\u0103rilor scalaire, care nu influen\u021beaz\u0103 rezultatul, a fost exclus\u0103;\n<li class=\"l\"> Performan\u021ba func\u021biilor de fereastr\u0103 \u00een interog\u0103rile cu expresia &#171;BETWEEN \ud83d\ude21 FOLLOWING AND :y FOLLOWING&#187; \u0219i cu o valoare foarte mare &#171;:y&#187; a fost accelerat\u0103.   <\/ul>\n<li class=\"l\"> A fost ad\u0103ugat\u0103 pragma &#171;PRAGMA wal_checkpoint=NOOP&#187; \u0219i func\u021bia API sqlite3_wal_checkpoint() pentru a \u00eenscrie modific\u0103rile \u00een jurnalul WAL.\n<li class=\"l\"> \u00cen API au fost ad\u0103ugate func\u021biile sqlite3_set_errmsg() \u0219i sqlite3_db_status64().\n<li class=\"l\"> \u00cen versiunea JavaScript\/WASM a SQLite a fost implementat suportul pentru construirea unui view WebAssembly cu pointere pe 64 de bi\u021bi.\n<li class=\"l\"> Rezisten\u021ba la deteriorarea bazelor de date \u00een aplica\u021biile care elimin\u0103 bloc\u0103rile POSIX prin apelul close() a fost gratuit\u0103.\n<li class=\"l\"> \u00cembun\u0103t\u0103\u021bit\u0103 suportul pentru platforma VxWorks.      <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=64186\">opennet.ro<\/a> 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\u043e\u0442\u043b\u0438\u0447\u0430\u044e\u0442\u0441\u044f \u043e\u0442 \u0440\u0430\u043d\u0435\u0435 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0445 \u0444\u0443\u043d\u043a\u0446\u0438\u0439 json_each() \u0438 json_tree() \u0442\u0435\u043c, [&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-147391","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0440\u0435\u043b\u0438\u0437 SQLite 3.51, \u043b\u0435\u0433\u043a\u043e\u0432\u0435\u0441\u043d\u043e\u0439 \u0421\u0423\u0411\u0414, 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