{"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\/pt\/blog\/news\/vypusk-subd-firebird-5-0","title":{"rendered":"Lan\u00e7amento do SGBD Firebird 5.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ap\u00f3s dois anos e meio de desenvolvimento, o lan\u00e7amento do SGBD relacional Firebird 5.0 foi apresentado. O Firebird continua a evolu\u00e7\u00e3o do c\u00f3digo do SGBD InterBase 6.0, liberado em 2000 pela Borland. O Firebird \u00e9 distribu\u00eddo sob a licen\u00e7a livre MPL e suporta os padr\u00f5es ANSI SQL, incluindo recursos como gatilhos, procedimentos armazenados e replica\u00e7\u00e3o. Compila\u00e7\u00f5es bin\u00e1rias est\u00e3o dispon\u00edveis para Linux, Windows, macOS e Android.    <\/p>\n<p>Principais inova\u00e7\u00f5es:  <\/p>\n<ul>\n<li class=\"l\"> Foi implementada a possibilidade de executar opera\u00e7\u00f5es em modo multithreading. A paraleliza\u00e7\u00e3o em m\u00faltiplos threads \u00e9 aplic\u00e1vel durante a cria\u00e7\u00e3o de \u00edndices, coleta de lixo (opera\u00e7\u00f5es autom\u00e1ticas e manuais de sweep), cria\u00e7\u00e3o de backups e recupera\u00e7\u00e3o a partir deles. gfix -sweep -parallel 4 dbname gbak -b -par 4 -user username -pass password dbname backupname\n<li class=\"l\"> Adicionada a suporte a \u00edndices parciais, que incluem apenas registros seletivos que correspondem \u00e0s condi\u00e7\u00f5es especificadas na cria\u00e7\u00e3o do \u00edndice. CREATE INDEX IT1_COL ON T1 (COL) WHERE COL &lt; 100;\n<li class=\"l\"> As express\u00f5es SELECT WITH LOCK, UPDATE e DELETE implementaram a sintaxe &#171;SKIP LOCKED&#187;, permitindo excluir registros para os quais, no momento do envio da solicita\u00e7\u00e3o, foi imposta uma bloqueio (por exemplo, para n\u00e3o ter que aguardar a libera\u00e7\u00e3o do bloqueio ao colidir com outra transa\u00e7\u00e3o).\n<li class=\"l\"> Foi adicionado o recurso de atualiza\u00e7\u00e3o do banco de dados para a vers\u00e3o intermedi\u00e1ria mais recente do reposit\u00f3rio (ODS &#8212; On-Disk-Structure) em tempo real (atualiza\u00e7\u00e3o inline) sem a necessidade de criar e restaurar a partir de um backup. Agora \u00e9 poss\u00edvel converter em tempo real um banco de dados no formato Firebird 4.0 (ODS 13.0) para o formato Firebird 5.0 (ODS 13.1).\n<li class=\"l\"> Foi implementado um cache de express\u00f5es SQL compiladas, gerido automaticamente (os registros obsoletos s\u00e3o limpos conforme necess\u00e1rio). O tamanho do cache \u00e9 definido pelo par\u00e2metro MaxStatementCacheSize no firebird.conf.\n<li class=\"l\"> Adicionado um interface para a profila\u00e7\u00e3o de SQL e PSQL, permitindo avaliar o tempo de execu\u00e7\u00e3o de cada consulta, acumular estat\u00edsticas sobre o n\u00famero de consultas e identificar problemas de desempenho.\n<li class=\"l\"> A express\u00e3o MERGE passou a suportar o bloco condicional &#171;WHEN NOT MATCHED BY SOURCE&#187;, que \u00e9 acionado quando o registro original n\u00e3o corresponde a nenhum registro no conjunto de destino. 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\"> Possibilitou a devolu\u00e7\u00e3o de v\u00e1rias linhas por meio da express\u00e3o RETURNING, se a DML fornecida abranger v\u00e1rias linhas (anteriormente, nestas situa\u00e7\u00f5es, o erro &#171;multiple rows in singleton select&#187; era exibido).\n<li class=\"l\"> Novas fun\u00e7\u00f5es internas adicionadas: UNICODE_CHAR para retornar o caractere unicode correspondente ao c\u00f3digo fornecido, e UNICODE_VAL para retornar o c\u00f3digo para um caractere dado. Na fun\u00e7\u00e3o EXTRACT, foram adicionados os par\u00e2metros FIRST_DAY e LAST_DAY para determinar o n\u00famero do trimestre.\n<li class=\"l\"> Pacote de sistema novo RDB$BLOB_UTIL adicionado com um conjunto de opera\u00e7\u00f5es para BLOBs em m\u00f3dulos PSQL.\n<li class=\"l\"> O algoritmo de compress\u00e3o de registros foi aprimorado, agora aplicando um contador de comprimento vari\u00e1vel para embalar de forma mais eficiente sequ\u00eancias de dados repetidas. A otimiza\u00e7\u00e3o permitiu um aumento significativo na taxa de compress\u00e3o de campos VARCHAR longos n\u00e3o totalmente preenchidos com dados codificados em UTF-8.\n<li class=\"l\"> Adicionada a capacidade de trabalhar com cursores bidirecionais (scrollable) durante chamadas remotas \u00e0 base de dados.\n<li class=\"l\"> Otimiza\u00e7\u00e3o no desempenho da c\u00f3pia de blobs realizada.\n<li class=\"l\"> Foi adicionada suporte total \u00e0 sintaxe de defini\u00e7\u00e3o de linhas descrita no padr\u00e3o SQL. Por exemplo, agora as linhas podem ser interrompidas por coment\u00e1rios ou espa\u00e7os: select &#8216;ab&#8217; F* comment *u007B0; &#8216;cd&#8217; from RDB$DATABASE; select &#8216;ab&#8217; &#8216;cd&#8217; from RDB$DATABASE;    <\/ul>\n<p>Fonte: <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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O Firebird continua o desenvolvimento do c\u00f3digo do banco de dados InterBase 6.0, aberto em 2000 pela Borland.","canonical_url":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-subd-firebird-5-0","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"pt_PT","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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