{"id":112886,"date":"2024-01-13T11:28:03","date_gmt":"2024-01-13T09:28:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-subd-firebird-5-0"},"modified":"2024-01-13T11:28:03","modified_gmt":"2024-01-13T09:28:03","slug":"vypusk-subd-firebird-5-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/vypusk-subd-firebird-5-0","title":{"rendered":"The release of the Firebird 5.0 DBMS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>K\u00e9t \u00e9s f\u00e9l \u00e9v fejleszt\u00e9s ut\u00e1n megjelent a Firebird 5.0 rel\u00e1ci\u00f3s adatb\u00e1zis-kezel\u0151 rendszer. A Firebird a Borland \u00e1ltal 2000-ben ny\u00edlt forr\u00e1sk\u00f3d\u00fav\u00e1 tett InterBase 6.0 k\u00f3dj\u00e1nak tov\u00e1bbi fejleszt\u00e9s\u00e9n alapul. A Firebird szabad licenc alatt \u00e9rhet\u0151 el, \u00e9s t\u00e1mogatja az ANSI SQL szabv\u00e1nyokat, bele\u00e9rtve olyan funkci\u00f3kat, mint a trigger-ek, t\u00e1rolt elj\u00e1r\u00e1sok \u00e9s replik\u00e1ci\u00f3. Binaries k\u00e9sz\u00fcltek Linux, Windows, macOS \u00e9s Android sz\u00e1m\u00e1ra.    <\/p>\n<p>Kulcsfontoss\u00e1g\u00fa \u00faj\u00edt\u00e1sok:  <\/p>\n<ul>\n<li class=\"l\"> Megval\u00f3sult a t\u00f6bb sz\u00e1lon t\u00f6rt\u00e9n\u0151 m\u0171veletek v\u00e9grehajt\u00e1s\u00e1nak lehet\u0151s\u00e9ge. A p\u00e1rhuzamos\u00edt\u00e1s t\u00f6bb sz\u00e1lra alkalmazhat\u00f3 indexek l\u00e9trehoz\u00e1sakor, szem\u00e9tgy\u0171jt\u00e9skor (automatikus \u00e9s k\u00e9zi sweep m\u0171veletek), biztons\u00e1gi ment\u00e9sek k\u00e9sz\u00edt\u00e9sekor \u00e9s azok vissza\u00e1ll\u00edt\u00e1sakor. gfix -sweep -parallel 4 dbname gbak -b -par 4 -user username -pass password dbname backupname\n<li class=\"l\"> Bevezet\u00e9sre ker\u00fclt a r\u00e9szleges indexek t\u00e1mogat\u00e1sa, amelyek csak a megadott felt\u00e9teleknek megfelel\u0151 mint\u00e1kat tartalmaznak az index l\u00e9trehoz\u00e1sakor. CREATE INDEX IT1_COL ON T1 (COL) WHERE COL &lt; 100;\n<li class=\"l\"> A SELECT WITH LOCK, UPDATE \u00e9s DELETE kifejez\u00e9sekben megval\u00f3sult a \u201eSKIP LOCKED\u201d szintaxis, amely lehet\u0151v\u00e9 teszi azoknak a rekordoknak a kisz\u0171r\u00e9s\u00e9t, amelyek le vannak z\u00e1rva a lek\u00e9rdez\u00e9s k\u00fcld\u00e9sekor (p\u00e9ld\u00e1ul, hogy ne kelljen v\u00e1rni a z\u00e1r felold\u00e1s\u00e1ra, amikor egy m\u00e1sik tranzakci\u00f3val tal\u00e1lkozik).\n<li class=\"l\"> Bevezet\u00e9sre ker\u00fclt az adatb\u00e1zis friss\u00edt\u00e9s\u00e9nek lehet\u0151s\u00e9ge a legfrissebb k\u00f6ztes t\u00e1rol\u00e1si verzi\u00f3ra (ODS \u2014 On-Disk-Structure) fut\u00e1s k\u00f6zben (inline update), an\u00e9lk\u00fcl, hogy biztons\u00e1gi m\u00e1solatot kellene k\u00e9sz\u00edteni vagy vissza\u00e1ll\u00edtani. P\u00e9ld\u00e1ul mostant\u00f3l fut\u00e1s k\u00f6zben \u00e1tkonvert\u00e1lhatjuk az adatb\u00e1zist Firebird 4.0 (ODS 13.0) form\u00e1tumb\u00f3l Firebird 5.0 (ODS 13.1) form\u00e1tumra.\n<li class=\"l\"> Bevezet\u00e9sre ker\u00fclt egy automatikusan kezelt, leford\u00edtott SQL kifejez\u00e9sek cache-e (elavult bejegyz\u00e9sek sz\u00fcks\u00e9g szerint t\u00f6rl\u0151dnek). A cache m\u00e9rete a firebird.conf f\u00e1jl MaxStatementCacheSize param\u00e9ter\u00e9vel \u00e1ll\u00edthat\u00f3 be.\n<li class=\"l\"> Bevezet\u00e9sre ker\u00fclt egy interf\u00e9sz SQL \u00e9s PSQL profiloz\u00e1s\u00e1ra, amely lehet\u0151v\u00e9 teszi a lek\u00e9rdez\u00e9sek v\u00e9grehajt\u00e1si idej\u00e9nek felm\u00e9r\u00e9s\u00e9t, a lek\u00e9rdez\u00e9sek sz\u00e1m\u00e1nak statisztikai gy\u0171jt\u00e9s\u00e9t \u00e9s a teljes\u00edtm\u00e9nyt \u00e9rint\u0151 probl\u00e9m\u00e1k azonos\u00edt\u00e1s\u00e1t.\n<li class=\"l\"> A MERGE kifejez\u00e9shez hozz\u00e1ad\u00f3dott egy felt\u00e9teles szakasz t\u00e1mogat\u00e1sa is, amely a \u201eWHEN NOT MATCHED BY SOURCE\u201d aktiv\u00e1l\u00f3dik, ha a forr\u00e1s rekord nem felel meg egyetlen c\u00e9lhalmaz rekordnak sem.       MERGE INTO customers c USING new_customers nc ON (c.id = nc.id)  \tWHEN MATCHED THEN  \t\tUPDATE SET name = nc.name  \tWHEN NOT MATCHED BY SOURCE THEN  \t\tDELETE\n<li class=\"l\"> Lehet\u0151s\u00e9get biztos\u00edtottunk t\u00f6bb sor visszaad\u00e1s\u00e1ra a RETURNING kifejez\u00e9ssel, ha a megadott DML-kifejez\u00e9s t\u00f6bb sort fed le (kor\u00e1bban, ilyen szitu\u00e1ci\u00f3kban \u201emultiple rows in singleton select\u201d hiba\u00fczenet jelent meg).\n<li class=\"l\"> \u00daj be\u00e9p\u00edtett funkci\u00f3k ker\u00fcltek hozz\u00e1ad\u00e1sra: UNICODE_CHAR, amely a megadott k\u00f3dnak megfelel\u0151 unicode karaktert ad vissza, \u00e9s UNICODE_VAL, amely a megadott karakter k\u00f3dj\u00e1t adja vissza. Az EXTRACT, FIRST_DAY \u00e9s LAST_DAY f\u00fcggv\u00e9nyhez QUARTER param\u00e9ter ker\u00fclt hozz\u00e1ad\u00e1sra a negyed\u00e9v sz\u00e1m\u00e1nak meghat\u00e1roz\u00e1s\u00e1hoz.\n<li class=\"l\"> \u00daj RDB$BLOB_UTIL rendszercsomag ker\u00fclt hozz\u00e1ad\u00e1sra, amely a BLOB-okkal kapcsolatos m\u0171veletek gy\u0171jtem\u00e9ny\u00e9t tartalmazza a PSQL modulok sz\u00e1m\u00e1ra.\n<li class=\"l\"> Javult a rekordok t\u00f6m\u00f6r\u00edt\u00e9si algoritmus, amely most v\u00e1ltoz\u00f3 hossz\u00fas\u00e1g\u00fa sz\u00e1ml\u00e1l\u00f3t alkalmaz a megism\u00e9tl\u0151d\u0151 adatv\u00e1zlatok hat\u00e9konyabb becsomagol\u00e1s\u00e1ra. Az optimaliz\u00e1l\u00e1s jelent\u0151s m\u00e9rt\u00e9kben n\u00f6velte a f\u00e9lig kit\u00f6lt\u00f6tt hossz\u00fa VARCHAR mez\u0151k t\u00f6m\u00f6r\u00edt\u00e9si fok\u00e1t UTF-8 k\u00f3dol\u00e1s\u00fa adatokkal.\n<li class=\"l\"> Lehet\u0151s\u00e9get biztos\u00edt a k\u00e9tir\u00e1ny\u00fa kurzorok (scrollable) haszn\u00e1lat\u00e1ra t\u00e1voli h\u00e1l\u00f3zati adatb\u00e1zis-hozz\u00e1f\u00e9r\u00e9s eset\u00e9n.\n<li class=\"l\"> Teljes\u00edtm\u00e9nyoptimaliz\u00e1l\u00e1st hajtottak v\u00e9gre a BLOB-ok m\u00e1sol\u00e1s\u00e1n\u00e1l.\n<li class=\"l\"> Teljes k\u00f6r\u0171 t\u00e1mogat\u00e1st kaptak a SQL szabv\u00e1ny \u00e1ltal le\u00edrt sor-defin\u00edci\u00f3s szintaxisok. P\u00e9ld\u00e1ul a sorok most m\u00e1r megbonthat\u00f3k megjegyz\u00e9sekkel vagy sz\u00f3k\u00f6z\u00f6kkel:       select \u2018ab\u2019 \/* comment *\/ \u2018cd\u2019 from RDB$DATABASE;     select \u2018ab\u2019 \u2018cd\u2019 from RDB$DATABASE;    <\/ul>\n<p>Forr\u00e1s: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60430\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041f\u043e\u0441\u043b\u0435 \u0434\u0432\u0443\u0445 \u0441 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u043e\u0439 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0440\u0435\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0421\u0423\u0411\u0414 Firebird 5.0. Firebird \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u0435\u0442 \u0440\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u043a\u043e\u0434\u0430 \u0421\u0423\u0411\u0414 InterBase 6.0, \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0433\u043e \u0432 2000 \u0433\u043e\u0434\u0443 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Borland. Firebird \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u0441\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MPL \u0438 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u044b ANSI SQL, \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435 \u0442\u0430\u043a\u0438\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u0438, \u043a\u0430\u043a \u0442\u0440\u0438\u0433\u0433\u0435\u0440\u044b, \u0445\u0440\u0430\u043d\u0438\u043c\u044b\u0435 \u043f\u0440\u043e\u0446\u0435\u0434\u0443\u0440\u044b \u0438 \u0440\u0435\u043f\u043b\u0438\u043a\u0430\u0446\u0438\u044e. \u0411\u0438\u043d\u0430\u0440\u043d\u044b\u0435 \u0441\u0431\u043e\u0440\u043a\u0438 \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u044b \u0434\u043b\u044f Linux, Windows, macOS \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-112886","post","type-post","status-publish","format-standard","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\u043e\u0441\u043b\u0435 \u0434\u0432\u0443\u0445 \u0441 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u043e\u0439 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0440\u0435\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0421\u0423\u0411\u0414 Firebird 5.0. 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A Firebird tov\u00e1bbra is az InterBase 6.0 adatb\u00e1zis-kezel\u0151 rendszer k\u00f3dj\u00e1nak fejleszt\u00e9s\u00e9t folytatja, amelyet 2000-ben adott ki a Borland.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/vypusk-subd-firebird-5-0","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","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\udd47\u0412\u044b\u043f\u0443\u0441\u043a \u0421\u0423\u0411\u0414 Firebird 5.0 | ProHoster","og:description":"\u041f\u043e\u0441\u043b\u0435 \u0434\u0432\u0443\u0445 \u0441 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u043e\u0439 \u043b\u0435\u0442 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0440\u0435\u043b\u0438\u0437 \u0440\u0435\u043b\u044f\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0421\u0423\u0411\u0414 Firebird 5.0. 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