{"id":7767,"date":"2019-07-09T17:11:04","date_gmt":"2019-07-09T20:11:04","guid":{"rendered":"https:\/\/kb.elipse.com.br\/?p=7767"},"modified":"2019-08-07T10:05:23","modified_gmt":"2019-08-07T13:05:23","slug":"aplicacao-exemplo-lendo-dados-de-um-banco-sql-atraves-do-driver-vbscript","status":"publish","type":"post","link":"https:\/\/kb.elipse.com.br\/en\/aplicacao-exemplo-lendo-dados-de-um-banco-sql-atraves-do-driver-vbscript\/","title":{"rendered":"Aplica\u00e7\u00e3o Exemplo: Lendo dados de um banco SQL atrav\u00e9s do driver VBScript."},"content":{"rendered":"<p>Este artigo apresenta uma aplica\u00e7\u00e3o exemplo que ilustra como ler os dados de um banco SQL atrav\u00e9s do driver VBScript, da Elipse Software.<\/p>\n<h2 style=\"text-align: justify;\"><strong><u>Introdu\u00e7\u00e3o<\/u><\/strong><\/h2>\n<p style=\"text-align: justify;\">\u00c0s vezes, \u00e9 preciso que o aplicativo fa\u00e7a a leitura peri\u00f3dica de uma tabela do banco de dados de forma similar a um driver de comunica\u00e7\u00e3o; nesses casos, o indicado \u00e9 utilizar o driver VBScript, da Elipse Software.\u00a0 Sendo assim, a cria\u00e7\u00e3o de um script respons\u00e1vel por realizar estas leituras diretamente no driver VBScript (IOServer.exe) evita que estas opera\u00e7\u00f5es s\u00edncronas (<em>GetADORecordSet<\/em>) influenciem na performance da thread principal do E3\/Power (E3Run.exe).<\/p>\n<h2 style=\"text-align: justify;\"><strong><u>Aplica\u00e7\u00e3o Exemplo<\/u><\/strong><\/h2>\n<p style=\"text-align: justify;\">Na aplica\u00e7\u00e3o exemplo abaixo, demonstramos como ler dados de um banco Microsoft SQL atrav\u00e9s do driver VBScript. No exemplo:<\/p>\n<ul>\n<li style=\"text-align: justify;\">a leitura \u00e9 feita de forma peri\u00f3dica, e<\/li>\n<li style=\"text-align: justify;\">os valores lidos s\u00e3o atribu\u00eddos a IOTags do driver de comunica\u00e7\u00e3o.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" class=\"wp-image-7768 size-full aligncenter\" src=\"https:\/\/kb.elipse.com.br\/wp-content\/uploads\/2019\/07\/7767\/1.jpg\" alt=\"janela SQLRead\" width=\"1025\" height=\"207\" \/><\/p>\n<h2 style=\"text-align: justify;\"><strong><u>Configurando e Utilizando a Aplica\u00e7\u00e3o Para Ler dados de um Banco SQL via Driver VBScript<br \/>\n<\/u><\/strong><\/h2>\n<p style=\"text-align: justify;\">Para que o aplicativo funcione corretamente, \u00e9 preciso ajustar os par\u00e2metros da conex\u00e3o com o banco de dados; dessa forma,\u00a0 a comunica\u00e7\u00e3o ser\u00e1 estabelecida com o banco SQL.<\/p>\n<p style=\"text-align: justify;\">Na figura abaixo, vemos o objeto banco de dados:<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" class=\"wp-image-7769 size-full aligncenter\" src=\"http:\/\/kb.elipse.com.br\/wp-content\/uploads\/2019\/07\/7767\/2.jpg\" alt=\"Banco de Dados SQL\" width=\"1023\" height=\"597\" \/><\/p>\n<p style=\"text-align: justify;\">J\u00e1 na pr\u00f3xima figura, vemos o script do driver SQLRead:<\/p>\n<p style=\"text-align: justify;\"><img loading=\"lazy\" class=\"wp-image-7770 size-full aligncenter\" src=\"http:\/\/kb.elipse.com.br\/wp-content\/uploads\/2019\/07\/7767\/3.jpg\" alt=\"driver VBScript\" width=\"721\" height=\"647\" \/><\/p>\n<p style=\"text-align: justify;\">O aplicativo conta com um IOTag chamado <em>ReadStatus,<\/em> que retorna o status da leitura realizada. O valores de retorno poss\u00edveis s\u00e3o:<\/p>\n<ul>\n<li style=\"text-align: justify;\"><em>ReadStatus<\/em> = 0 (Leitura realizada com sucesso!)<\/li>\n<li style=\"text-align: justify;\"><em>ReadStatus<\/em> = 1 (Falha na leitura!)<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Al\u00e9m disso, \u00e9 poss\u00edvel definir o per\u00edodo de scan das leituras atrav\u00e9s do campo varredura do IOTag chamado <em>ReadPeriod<\/em>.<\/p>\n<h3><\/h3>\n<h3><b>Anexos:<\/b><\/h3>\n<p><a href=\"https:\/\/kb.elipse.com.br\/wp-content\/uploads\/2019\/07\/7767\/AppExemploReadSQL.zip\">AppExemploReadSQL.zip<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Este artigo apresenta uma aplica\u00e7\u00e3o exemplo que ilustra como ler os dados de um banco SQL atrav\u00e9s do driver VBScript, da Elipse Software. Introdu\u00e7\u00e3o \u00c0s vezes, \u00e9 preciso que o&hellip;<\/p>\n","protected":false},"author":13,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0},"categories":[583,687,672],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Aplica\u00e7\u00e3o Exemplo: Ler um BD SQL via driver VBScript da Elipse.<\/title>\n<meta name=\"description\" content=\"Este artigo apresenta uma applica\u00e7\u00e3o exemplo que ilustra como ler dados de um banco SQL via driver VBScript da Elipse Software.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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