{"id":164600,"date":"2026-03-14T11:12:15","date_gmt":"2026-03-14T09:12:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal"},"modified":"2026-03-14T11:12:15","modified_gmt":"2026-03-14T09:12:15","slug":"sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal","title":{"rendered":"SQLite 3.51.3 s opravou mo\u017en\u00e9ho po\u0161kodenia datab\u00e1zy v re\u017eime WAL","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"SQLite 3.51.3 s opravou mo\u017en\u00e9ho po\u0161kodenia datab\u00e1zy v re\u017eime WAL\" src=\"\/wp-content\/uploads\/2026\/03\/3c442654f8b6d86974735255e8214cfe.jpg\" style=\"display:block;margin: 0 auto;\" \/>                              <noindex>      <noindex><\/p>\n<p>13. marca bol vydan\u00fd opravn\u00fa verziu 3.51.3 kompaktn\u00e9ho zabudovan\u00e9ho DBMS <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\">SQLite<\/a>. K\u00f3d projektu je nap\u00edsan\u00fd v jazyku C a je \u0161\u00edren\u00fd ako verejn\u00fd majetok (public domain).<\/p>\n<p><\/noindex><\/noindex> <noindex><\/p>\n<p>Vzh\u013eadom na probl\u00e9my sp\u00e4tnej kompatibility, ktor\u00e9 s\u00favisia s niektor\u00fdmi nov\u00fdmi funkciami, verzia <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\/releaselog\/3_52_0.html\">3.52.0<\/a> (vydan\u00e1 6. marca) bola stiahnut\u00e1.<\/p>\n<p><\/noindex>  <\/p>\n<p>Zoznam zmien verzie 3.51.3:<\/p>\n<ul>\n<li>3. marca jeden z v\u00fdvoj\u00e1rov SQLite (Dan) objavil a opravil chybu, ktor\u00e1 v zriedkav\u00fdch pr\u00edpadoch mohla vies\u0165 k po\u0161kodeniu datab\u00e1zy, a nazval ju <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\/wal.html#walresetbug\">\u201eWAL-reset bug\u201c<\/a>:\n<ul>\n<li>T\u00e1to chyba sa vyskytuje iba v datab\u00e1zach be\u017eiacich v re\u017eime WAL, ak je k rovnak\u00e9mu s\u00faboru otvoren\u00fdch viacero pripojen\u00ed v r\u00f4znych vl\u00e1knach alebo procesoch, a ak sa tieto dve pripojenia pok\u00fa\u0161aj\u00fa vykona\u0165 z\u00e1pis alebo vytvori\u0165 kontroln\u00fd bod s\u00fa\u010dasne.<\/li>\n<li>Chyba s\u00favis\u00ed s konfliktom pr\u00edstupu k \u00fadajom pri pr\u00edsnych \u010dasov\u00fdch obmedzeniach. V norm\u00e1lnych podmienkach prev\u00e1dzky sa vyskytuje mimoriadne zriedkavo. V\u00fdvoj\u00e1rom sa nepodarilo zopakova\u0165 t\u00fato chybu v prirodzen\u00fdch podmienkach, a preto museli do SQLite prida\u0165 \u0161peci\u00e1lnu logiku testovania, ktor\u00e1 z\u00e1merne vytv\u00e1ra podmienky pre vznik chyby, aby sa uistili, \u017ee probl\u00e9m bol vyrie\u0161en\u00fd.<\/li>\n<li>Chyba nast\u00e1va, ke\u010f:\n<ol>\n<li>Jedno pripojenie vykon\u00e1va overenie kontroln\u00e9ho bodu. Toto prv\u00e9 overenie mus\u00ed by\u0165 dokon\u010den\u00e9. In\u00fdmi slovami, po\u010das overenia je potrebn\u00e9 \u00faspe\u0161ne skop\u00edrova\u0165 cel\u00e9 obsahu s\u00faboru WAL sp\u00e4\u0165 do datab\u00e1zy a uvies\u0165 s\u00fabor WAL do stavu, v ktorom m\u00f4\u017ee by\u0165 zru\u0161en\u00fd.<\/li>\n<li>Ihne\u010f po dokon\u010den\u00ed prv\u00e9ho kontroln\u00e9ho bodu sa sp\u00fa\u0161\u0165a druh\u00fd.<\/li>\n<li>K\u00fdm sa sp\u00fa\u0161\u0165a druh\u00fd kontroln\u00fd bod z kroku 2, in\u00e9 pripojenie k datab\u00e1ze zaznamen\u00e1va transakciu, ktor\u00e1 zru\u0161\u00ed s\u00fabor WAL a zap\u00ed\u0161e nov\u00e9 obsahy na za\u010diatok s\u00faboru WAL.<\/li>\n<li>V d\u00f4sledku konfliktu pr\u00edstupu k \u00fadajom druh\u00fd kontroln\u00fd bod z kroku 2 nezoh\u013ead\u0148uje, \u017ee s\u00fabor WAL bol zru\u0161en\u00fd v d\u00f4sledku zaznamenania transakcie v kroku 3. Druh\u00fd kontroln\u00fd bod nastavuje nespr\u00e1vnu hodnotu pre jedno z pol\u00ed v hlavi\u010dke WAL. Toto pole ukazuje, \u017ee \u010das\u0165 s\u00faboru WAL u\u017e bola zaznamenan\u00e1 v kontrolnom bode, hoci to v skuto\u010dnosti nie je pravda.<\/li>\n<li>Zaznamen\u00e1vanie dodato\u010dn\u00fdch transakci\u00ed vedie k zv\u00fd\u0161eniu po\u010dtu str\u00e1nok v s\u00fabore WAL, ktor\u00fd presahuje po\u010det str\u00e1nok, ktor\u00e9 existovali v \u010dase prvej kontrolnej bodky z kroku 1.<\/li>\n<li>Nesk\u00f4r, ke\u010f vznikne tretia kontroln\u00e1 bodka, presko\u010d\u00ed cel\u00fa alebo \u010das\u0165 transakcie zaznamenanej v kroku 3. Tak\u017ee \u010dasti transakcie z kroku 3 sa nikdy nedostan\u00fa do s\u00faboru datab\u00e1zy, \u010do vedie k po\u0161kodeniu s\u00faboru datab\u00e1zy.<\/li>\n<\/ol>\n<\/li>\n<li>Chyba je pravdepodobne pr\u00edtomn\u00e1 vo v\u0161etk\u00fdch verzi\u00e1ch SQLite od 3.7.0 (21.07.2010) po 3.51.2. Opravy boli vydan\u00e9 aj pre niektor\u00e9 star\u0161ie verzie: <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\/src\/info\/863c171b76cd36e0\">3.44.6<\/a> a <a rel=\"nofollow\" href=\"https:\/\/sqlite.org\/src\/info\/c7facf7ac58d2cda\">3.50.7<\/a>.<\/li>\n<\/ul>\n<\/li>\n<li>In\u00e9 drobn\u00e9 opravy.<\/li>\n<\/ul>\n<p>Zdroj: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/opensource\/18241537\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>13-\u0433\u043e \u043c\u0430\u0440\u0442\u0430 \u0441\u043e\u0441\u0442\u043e\u044f\u043b\u0441\u044f \u043a\u043e\u0440\u0440\u0435\u043a\u0442\u0438\u0440\u0443\u044e\u0449\u0438\u0439 \u0432\u044b\u043f\u0443\u0441\u043a 3.51.3 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0439 \u0432\u0441\u0442\u0440\u0430\u0438\u0432\u0430\u0435\u043c\u043e\u0439 \u0421\u0423\u0411\u0414 SQLite. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C \u0438 \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). \u0412 \u0441\u0432\u044f\u0437\u0438 \u0441 \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u043c\u0438 \u043e\u0431\u0440\u0430\u0442\u043d\u043e\u0439 \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u0438, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u043c\u0438 \u0441 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u043c\u0438 \u043d\u043e\u0432\u044b\u043c\u0438 \u0444\u0443\u043d\u043a\u0446\u0438\u044f\u043c\u0438, \u0432\u0435\u0440\u0441\u0438\u044f 3.52.0 (\u0432\u044b\u0448\u0435\u0434\u0448\u0430\u044f 6-\u0433\u043e \u043c\u0430\u0440\u0442\u0430) \u0431\u044b\u043b\u0430 \u043e\u0442\u043e\u0437\u0432\u0430\u043d\u0430. \u0421\u043f\u0438\u0441\u043e\u043a \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 3.51.3: 3-\u0433\u043e \u043c\u0430\u0440\u0442\u0430 \u043e\u0434\u0438\u043d \u0438\u0437 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u043e\u0432 SQLite (Dan) \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0438\u043b \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0438\u043b [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":164601,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-164600","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\".\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Erik Peterson\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sk\/blog\/news\/sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.4\" \/>\n\t\t<meta property=\"og:locale\" content=\"sk_SK\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47SQLite 3.51.3 \u0441 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0433\u043e \u043f\u043e\u0432\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u044f \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 WAL | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\".\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/sk\/blog\/news\/sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2026-03-14T09:12:15+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2026-03-14T09:12:15+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47SQLite 3.51.3 s opravou mo\u017en\u00e9ho po\u0161kodenia datab\u00e1zy v re\u017eime WAL | ProHoster","description":".","canonical_url":"https:\/\/prohoster.info\/sk\/blog\/news\/sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sk_SK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47SQLite 3.51.3 \u0441 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u0435\u043c \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0433\u043e \u043f\u043e\u0432\u0440\u0435\u0436\u0434\u0435\u043d\u0438\u044f \u0431\u0430\u0437\u044b \u0434\u0430\u043d\u043d\u044b\u0445 \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 WAL | ProHoster","og:description":".","og:url":"https:\/\/prohoster.info\/sk\/blog\/news\/sqlite-3-51-3-s-ispravleniem-vozmozhnogo-povrezhdeniya-bazy-dannyh-v-rezhime-wal","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2026-03-14T09:12:15+00:00","article:modified_time":"2026-03-14T09:12:15+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/164600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/comments?post=164600"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/posts\/164600\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media\/164601"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/media?parent=164600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/categories?post=164600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sk\/wp-json\/wp\/v2\/tags?post=164600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}