{"id":18154,"date":"2023-07-18T12:39:41","date_gmt":"2023-07-18T12:39:41","guid":{"rendered":"https:\/\/soloweb.com.br\/blog\/?p=18154"},"modified":"2023-07-27T11:16:05","modified_gmt":"2023-07-27T11:16:05","slug":"diferenca-entre-os-comandos-copy-e-copy-no-postgresql","status":"publish","type":"post","link":"https:\/\/soloweb.com.br\/blog\/2023\/07\/18\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\/","title":{"rendered":"Diferen\u00e7a entre os comandos copy e \\copy no PostgreSQL"},"content":{"rendered":"\n<p>Os comandos <code>copy<\/code> e <code>\\copy<\/code> no PostgreSQL s\u00e3o usados para copiar dados entre tabelas e arquivos. No entanto, existem algumas diferen\u00e7as importantes entre os dois comandos.<\/p>\n\n\n\n<p>Precisando de um servidor especifico para seu banco de dados? Fale conosco. www.soloweb.com.br<\/p>\n\n\n\n<p>O comando <code>copy<\/code> \u00e9 um comando SQL que pode ser usado em qualquer cliente PostgreSQL. O comando <code>\\copy<\/code> \u00e9 um comando espec\u00edfico do cliente psql, que \u00e9 o cliente de linha de comando padr\u00e3o do PostgreSQL.<\/p>\n\n\n\n<p>O comando <code>copy<\/code> \u00e9 mais poderoso do que o comando <code>\\copy<\/code>. O comando <code>copy<\/code> pode copiar dados de uma tabela para outra, de um arquivo para uma tabela e de uma tabela para um arquivo. O comando <code>\\copy<\/code> s\u00f3 pode copiar dados de uma tabela para um arquivo.<\/p>\n\n\n\n<p>O comando <code>copy<\/code> tamb\u00e9m \u00e9 mais eficiente do que o comando <code>\\copy<\/code>. O comando <code>copy<\/code> usa o formato de dados nativo do PostgreSQL para copiar os dados, o que \u00e9 mais eficiente do que o formato de dados CSV usado pelo comando <code>\\copy<\/code>.<\/p>\n\n\n\n<p>Em geral, o comando <code>copy<\/code> \u00e9 a melhor op\u00e7\u00e3o para copiar dados entre tabelas e arquivos no PostgreSQL. O comando <code>\\copy<\/code> s\u00f3 deve ser usado se voc\u00ea precisar copiar dados para um arquivo CSV.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-wp-embed is-provider-soloweb-tecnologia wp-block-embed-soloweb-tecnologia\"><div class=\"wp-block-embed__wrapper\">\n<blockquote class=\"wp-embedded-content\" data-secret=\"etdXfphs8E\"><a href=\"https:\/\/soloweb.com.br\/blog\/2022\/07\/17\/melhorando-desempenho-de-consultas-sql-com-cte-common-table-expressions\/\">Melhorando desempenho de consultas SQL com CTE (Common Table Expressions)<\/a><\/blockquote><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; clip: rect(1px, 1px, 1px, 1px);\" title=\"&#8220;Melhorando desempenho de consultas SQL com CTE (Common Table Expressions)&#8221; &#8212; SOLOWEB Tecnologia\" src=\"https:\/\/soloweb.com.br\/blog\/2022\/07\/17\/melhorando-desempenho-de-consultas-sql-com-cte-common-table-expressions\/embed\/#?secret=WY64pMEbUC#?secret=etdXfphs8E\" data-secret=\"etdXfphs8E\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe>\n<\/div><figcaption class=\"wp-element-caption\">Veja tamb\u00e9m<\/figcaption><\/figure>\n\n\n\n<p>Aqui est\u00e1 um exemplo de como usar o comando <code>copy<\/code> para copiar dados de uma tabela para outra:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to table_b;\n<\/code><\/pre>\n\n\n\n<p>Este comando copiar\u00e1 todos os dados da tabela <code>table_a<\/code> para a tabela <code>table_b<\/code>.<\/p>\n\n\n\n<p>Aqui est\u00e1 um exemplo de como usar o comando <code>\\copy<\/code> para copiar dados de uma tabela para um arquivo:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\\copy table_a to '\/path\/to\/file.csv' with csv header;\n<\/code><\/pre>\n\n\n\n<p>Este comando copiar\u00e1 todos os dados da tabela <code>table_a<\/code> para o arquivo <code>\/path\/to\/file.csv<\/code>. O par\u00e2metro <code>header<\/code> especifica que os cabe\u00e7alhos de coluna devem ser inclu\u00eddos no arquivo.<\/p>\n\n\n\n<p>Aqui est\u00e3o mais alguns exemplos de como usar os comandos <code>copy<\/code> e <code>\\copy<\/code> no PostgreSQL:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copiar dados de um arquivo para uma tabela:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a from '\/path\/to\/file.csv' with csv header;\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copiar dados de uma tabela para um arquivo, usando um formato de dados diferente:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to '\/path\/to\/file.txt' with csv header csv format;\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copiar dados de uma tabela para outra, usando um filtro:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to table_b where id &gt; 100;\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copiar dados de uma tabela para outra, usando uma cl\u00e1usula ORDER BY:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to table_b order by id;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copiar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;onde o campo&nbsp;<code>id<\/code>&nbsp;\u00e9 maior que 100:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to table_b where id &gt; 100;\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copiar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;onde o campo&nbsp;<code>name<\/code>&nbsp;cont\u00e9m a string &#8220;John&#8221;:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to table_b where name like '%John%';\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copiar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;onde o campo&nbsp;<code>created_at<\/code>&nbsp;\u00e9 maior que a data atual:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to table_b where created_at &gt; now();\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Copiar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;onde o campo&nbsp;<code>id<\/code>&nbsp;\u00e9 maior que 100 e o campo&nbsp;<code>name<\/code>&nbsp;cont\u00e9m a string &#8220;John&#8221;:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to table_b where id &gt; 100 and name like '%John%';\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exportar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;para um arquivo CSV chamado&nbsp;<code>table_a.csv<\/code>:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to 'table_a.csv' with csv header;\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exportar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;onde o campo&nbsp;<code>id<\/code>&nbsp;\u00e9 maior que 100 para um arquivo CSV chamado&nbsp;<code>table_a_filtered.csv<\/code>:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to 'table_a_filtered.csv' with csv header where id &gt; 100;\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exportar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;onde o campo&nbsp;<code>name<\/code>&nbsp;cont\u00e9m a string &#8220;John&#8221; para um arquivo CSV chamado&nbsp;<code>table_a_filtered_john.csv<\/code>:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to 'table_a_filtered_john.csv' with csv header where name like '%John%';\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exportar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;onde o campo&nbsp;<code>created_at<\/code>&nbsp;\u00e9 maior que a data atual para um arquivo CSV chamado&nbsp;<code>table_a_filtered_recent.csv<\/code>:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to 'table_a_filtered_recent.csv' with csv header where created_at &gt; now();\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Exportar todos os dados da tabela&nbsp;<code>table_a<\/code>&nbsp;onde o campo&nbsp;<code>id<\/code>&nbsp;\u00e9 maior que 100 e o campo&nbsp;<code>name<\/code>&nbsp;cont\u00e9m a string &#8220;John&#8221; para um arquivo CSV chamado&nbsp;<code>table_a_filtered_john_recent.csv<\/code>:<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>copy table_a to 'table_a_filtered_john_recent.csv' with csv header where id &gt; 100 and name like '%John%';<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Os comandos copy e \\copy no PostgreSQL s\u00e3o usados para copiar dados entre tabelas e arquivos. No entanto, existem algumas<\/p>\n","protected":false},"author":4,"featured_media":18157,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","_editorskit_title_hidden":false,"_editorskit_reading_time":0,"_editorskit_is_block_options_detached":false,"_editorskit_block_options_position":"{}","footnotes":""},"categories":[249,302,303],"tags":[410,409,262],"class_list":["post-18154","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-banco-de-dados","category-destaque-principal","category-destaque-secundario","tag-copy","tag-postgre","tag-postgresql"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Diferen\u00e7a entre os comandos copy e \\copy no PostgreSQL - SOLOWEB Tecnologia<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/soloweb.com.br\/blog\/2023\/07\/18\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Diferen\u00e7a entre os comandos copy e \\copy no PostgreSQL - SOLOWEB Tecnologia\" \/>\n<meta property=\"og:description\" content=\"Os comandos copy e copy no PostgreSQL s\u00e3o usados para copiar dados entre tabelas e arquivos. No entanto, existem algumas\" \/>\n<meta property=\"og:url\" content=\"https:\/\/soloweb.com.br\/blog\/2023\/07\/18\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\/\" \/>\n<meta property=\"og:site_name\" content=\"SOLOWEB Tecnologia\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-18T12:39:41+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-27T11:16:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/soloweb.com.br\/blog\/wp-content\/uploads\/2023\/07\/WhatsApp-Image-2023-07-18-at-09.36.31.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"940\" \/>\n\t<meta property=\"og:image:height\" content=\"787\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Carlos Rolim\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Carlos Rolim\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/2023\\\/07\\\/18\\\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/2023\\\/07\\\/18\\\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\\\/\"},\"author\":{\"name\":\"Carlos Rolim\",\"@id\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/#\\\/schema\\\/person\\\/b10ff5bc260b411c2d82b19fad8ae3f1\"},\"headline\":\"Diferen\u00e7a entre os comandos copy e \\\\copy no PostgreSQL\",\"datePublished\":\"2023-07-18T12:39:41+00:00\",\"dateModified\":\"2023-07-27T11:16:05+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/2023\\\/07\\\/18\\\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\\\/\"},\"wordCount\":529,\"publisher\":{\"@id\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/2023\\\/07\\\/18\\\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/wp-content\\\/uploads\\\/2023\\\/07\\\/WhatsApp-Image-2023-07-18-at-09.36.31.jpeg\",\"keywords\":[\"copy\",\"postgre\",\"postgresql\"],\"articleSection\":[\"Banco de dados\",\"Destaque Principal\",\"Destaque Secund\u00e1rio\"],\"inLanguage\":\"pt-BR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/2023\\\/07\\\/18\\\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\\\/\",\"url\":\"https:\\\/\\\/soloweb.com.br\\\/blog\\\/2023\\\/07\\\/18\\\/diferenca-entre-os-comandos-copy-e-copy-no-postgresql\\\/\",\"name\":\"Diferen\u00e7a entre os comandos copy e \\\\copy no PostgreSQL - 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