{"id":4549,"date":"2023-07-10T05:10:21","date_gmt":"2023-07-10T05:10:21","guid":{"rendered":"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/"},"modified":"2023-07-10T05:10:21","modified_gmt":"2023-07-10T05:10:21","slug":"sas-altera-o-comprimento-variavel-dos-caracteres","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/","title":{"rendered":"Sas: como alterar o comprimento das vari\u00e1veis de caracteres"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">A maneira mais f\u00e1cil de alterar o comprimento das vari\u00e1veis de caracteres no SAS \u00e9 usar as instru\u00e7\u00f5es <strong>ALTER TABLE<\/strong> e <strong>MODIFY<\/strong> no <strong>PROC SQL<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">Para fazer isso, voc\u00ea pode usar a seguinte sintaxe b\u00e1sica:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\">proc sql<\/span> ;\n    <span style=\"color: #3366ff;\">alter table<\/span> my_data\n    <span style=\"color: #3366ff;\">modify<\/span> team char( <span style=\"color: #008000;\">4<\/span> );\n<span style=\"color: #800080;\">quit<\/span> ;\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Este exemplo espec\u00edfico altera o comprimento da vari\u00e1vel de caractere chamada <strong>team<\/strong> no conjunto de dados chamado <strong>my_data<\/strong> para ter um comprimento de <strong>4<\/strong> .<\/span><\/p>\n<p> <span style=\"color: #000000;\">O exemplo a seguir mostra como usar essa sintaxe na pr\u00e1tica.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Exemplo: alterar o comprimento da vari\u00e1vel de caractere no SAS<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Suponha que temos o seguinte conjunto de dados no SAS que cont\u00e9m informa\u00e7\u00f5es sobre v\u00e1rios times de basquete:<\/span> <\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*create dataset*\/\n<\/span><span style=\"color: #800080;\">data<\/span> my_data;\n    <span style=\"color: #3366ff;\">input<\/span> team $points;\n    <span style=\"color: #3366ff;\">datalines<\/span> ;\nCavs 12\nCavs 24\nHeat 15\nCavs 26\nHeat 14\nMavs 36\nMavs 19\nNets 20\nNets 31\n;\n<span style=\"color: #800080;\">run<\/span> ;\n\n<span style=\"color: #008000;\">\/*view dataset*\/\n<\/span><span style=\"color: #800080;\">proc print<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;<\/strong><\/span> <\/pre>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35526 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cha1.png\" alt=\"\" width=\"155\" height=\"265\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Podemos usar <a href=\"https:\/\/statorials.org\/pt\/conteudo-proc-sas\/\" target=\"_blank\" rel=\"noopener\">PROC CONTENTS<\/a> para exibir o comprimento de cada vari\u00e1vel no conjunto de dados:<\/span><\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*view length of each variable in dataset*\/\n<\/span><span style=\"color: #000000;\"><span style=\"color: #800080;\">proc contents<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;<\/span>\n<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">A \u00faltima tabela do resultado mostra o comprimento de cada vari\u00e1vel:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35527 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cha2.png\" alt=\"\" width=\"306\" height=\"120\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\">Nesta tabela podemos ver:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">A vari\u00e1vel <strong>points<\/strong> \u00e9 uma vari\u00e1vel num\u00e9rica com comprimento 8.<\/span><\/li>\n<li> <span style=\"color: #000000;\">A vari\u00e1vel <strong>de equipe<\/strong> \u00e9 uma vari\u00e1vel de caractere com comprimento 8.<\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Digamos que queremos alterar a vari\u00e1vel da <strong>equipe<\/strong> para ter comprimento 4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Podemos usar a seguinte sintaxe para fazer isso:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #800080;\"><span style=\"color: #008000;\">\/*change length of team variable to 4*\/<\/span>\nproc sql<\/span> ;\n    <span style=\"color: #3366ff;\">alter table<\/span> my_data\n    <span style=\"color: #3366ff;\">modify<\/span> team char( <span style=\"color: #008000;\">4<\/span> );\n<span style=\"color: #800080;\">quit<\/span> ;<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">Podemos coloc\u00e1-los em uso usando <strong>PROC CONTENTS<\/strong> novamente para exibir o comprimento de cada vari\u00e1vel no conjunto de dados:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <span style=\"color: #000000;\"><strong><span style=\"color: #008000;\">\/*view updated length of each variable in dataset*\/\n<\/span><span style=\"color: #800080;\">proc contents<\/span> <span style=\"color: #3366ff;\">data<\/span> =my_data;<\/strong><\/span><\/pre>\n<p> <span style=\"color: #000000;\">A \u00faltima tabela do resultado mostra o comprimento de cada vari\u00e1vel:<\/span> <\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\" wp-image-35528 aligncenter\" src=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cha3.png\" alt=\"\" width=\"318\" height=\"119\" srcset=\"\" sizes=\"auto, \"><\/p>\n<p> <span style=\"color: #000000;\"><span style=\"color: #000000;\">Podemos ver que a vari\u00e1vel <strong>team<\/strong> agora tem comprimento 4.<\/span><\/span><\/p>\n<p> <span style=\"color: #000000;\">Deve-se observar que nenhum dos valores na coluna da <strong>equipe<\/strong> foi truncado porque o nome da equipe mais longo tinha comprimento 4.<\/span><\/p>\n<p> <span style=\"color: #000000;\">No entanto, se voc\u00ea alterasse o comprimento da vari\u00e1vel de <strong>equipe<\/strong> para 3, por exemplo, o \u00faltimo caractere de alguns nomes de equipe teria sido truncado.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Usando este m\u00e9todo, <strong>nenhuma mensagem de aviso aparecer\u00e1 em caso de truncamento.<\/strong> Portanto, certifique-se de saber o comprimento m\u00e1ximo das strings em sua coluna de caracteres antes de usar este m\u00e9todo.<\/span><\/p>\n<h2> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h2>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como executar outras tarefas comuns no SAS:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/sas-extrair-numero-do-canal\/\" target=\"_blank\" rel=\"noopener\">Como extrair n\u00fameros de uma string no SAS<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/sob-funcao-de-airlock\/\" target=\"_blank\" rel=\"noopener\">Como usar a fun\u00e7\u00e3o SUBSTR no SAS<\/a><br \/><a href=\"https:\/\/statorials.org\/pt\/nao-remova-caracteres-especiais\/\" target=\"_blank\" rel=\"noopener\">Como remover caracteres especiais de strings no SAS<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A maneira mais f\u00e1cil de alterar o comprimento das vari\u00e1veis de caracteres no SAS \u00e9 usar as instru\u00e7\u00f5es ALTER TABLE e MODIFY no PROC SQL . Para fazer isso, voc\u00ea pode usar a seguinte sintaxe b\u00e1sica: proc sql ; alter table my_data modify team char( 4 ); quit ; Este exemplo espec\u00edfico altera o comprimento [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-4549","post","type-post","status-publish","format-standard","hentry","category-guia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SAS: Como alterar o comprimento das vari\u00e1veis de caracteres - Statorials<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como alterar o comprimento das vari\u00e1veis de caracteres no SAS, com um exemplo.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SAS: Como alterar o comprimento das vari\u00e1veis de caracteres - Statorials\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como alterar o comprimento das vari\u00e1veis de caracteres no SAS, com um exemplo.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-10T05:10:21+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/statorials.org\/wp-content\/uploads\/2023\/08\/cha1.png\" \/>\n<meta name=\"author\" content=\"Dr. benjamim anderson\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Dr. benjamim anderson\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/\",\"url\":\"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/\",\"name\":\"SAS: Como alterar o comprimento das vari\u00e1veis de caracteres - Statorials\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-10T05:10:21+00:00\",\"dateModified\":\"2023-07-10T05:10:21+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como alterar o comprimento das vari\u00e1veis de caracteres no SAS, com um exemplo.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/sas-altera-o-comprimento-variavel-dos-caracteres\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Sas: como alterar o comprimento das vari\u00e1veis de caracteres\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/statorials.org\/pt\/#website\",\"url\":\"https:\/\/statorials.org\/pt\/\",\"name\":\"Statorials\",\"description\":\"O seu guia para a literacia estat\u00edstica!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/statorials.org\/pt\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"pt-PT\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\",\"name\":\"Dr. benjamim anderson\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"pt-PT\",\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"contentUrl\":\"https:\/\/statorials.org\/pt\/wp-content\/uploads\/2023\/10\/Dr.-Benjamin-Anderson-96x96.jpg\",\"caption\":\"Dr. benjamim anderson\"},\"description\":\"Ol\u00e1, sou Benjamin, um professor aposentado de estat\u00edstica que se tornou professor dedicado na Statorials. 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