{"id":2720,"date":"2023-07-21T00:34:46","date_gmt":"2023-07-21T00:34:46","guid":{"rendered":"https:\/\/statorials.org\/pt\/mongodb-classifica-por-varios-campos\/"},"modified":"2023-07-21T00:34:46","modified_gmt":"2023-07-21T00:34:46","slug":"mongodb-classifica-por-varios-campos","status":"publish","type":"post","link":"https:\/\/statorials.org\/pt\/mongodb-classifica-por-varios-campos\/","title":{"rendered":"Mongodb: como classificar por v\u00e1rios campos"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">Voc\u00ea pode usar a seguinte sintaxe para classificar documentos no MongoDB por v\u00e1rios campos:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>db.myCollection.find().sort( { \" <span style=\"color: #ff0000;\">field1<\/span> \": 1, \" <span style=\"color: #ff0000;\">field2<\/span> \": -1 } )<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Este c\u00f3digo espec\u00edfico classifica os documentos na cole\u00e7\u00e3o chamada <span style=\"padding: 1px; border: 1px solid black;\">myCollection<\/span> primeiro pelo <span style=\"padding: 1px; border: 1px solid black;\">campo 1<\/span> em ordem crescente e depois pelo <span style=\"padding: 1px; border: 1px solid black;\">campo 2<\/span> em ordem decrescente.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Os exemplos a seguir mostram como usar essa sintaxe com uma<\/span> <span style=\"padding: 1px; border: 1px solid black;\">equipe<\/span> de cobran\u00e7a <span style=\"color: #000000;\">com os seguintes documentos:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>db.teams.insertOne({team: \" <span style=\"color: #008000;\">Mavs<\/span> \", points: 30, rebounds: 8})\ndb.teams.insertOne({team: \" <span style=\"color: #008000;\">Spurs<\/span> \", points: 30, rebounds: 12})\ndb.teams.insertOne({team: \" <span style=\"color: #008000;\">Rockets<\/span> \", points: 20, rebounds: 7})\ndb.teams.insertOne({team: \" <span style=\"color: #008000;\">Warriors<\/span> \", points: 25, rebounds: 5})\ndb.teams.insertOne({team: \" <span style=\"color: #008000;\">Cavs<\/span> \", points: 25, rebounds: 9})<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 1: Classificar por v\u00e1rios campos no MongoDB (crescente)<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Podemos usar o c\u00f3digo a seguir para classificar os documentos na cole\u00e7\u00e3o do <span style=\"padding: 1px; border: 1px solid black;\">Teams<\/span> primeiro aumentando os \u201cpontos\u201d e depois aumentando as \u201crejei\u00e7\u00f5es\u201d:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>db.teams.find().sort( { \" <span style=\"color: #ff0000;\">points<\/span> \": 1, \" <span style=\"color: #ff0000;\">rebounds<\/span> \": 1 } )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Esta consulta retorna os seguintes resultados:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>{ _id: ObjectId(\"61f952c167f1c64a1afb203b\"),\n  team: 'Rockets',\n  points: 20,\n  rebounds: 7 }\n{ _id: ObjectId(\"61f952c167f1c64a1afb203c\"),\n  team: 'Warriors',\n  points: 25,\n  rebounds: 5 }\n{ _id: ObjectId(\"61f952c167f1c64a1afb203d\"),\n  team: 'Cavs',\n  points: 25,\n  rebounds: 9 }\n{ _id: ObjectId(\"61f952c167f1c64a1afb2039\"),\n  team: 'Mavs',\n  points: 30,\n  rebounds: 8 }\n{ _id: ObjectId(\"61f952c167f1c64a1afb203a\"),\n  team: 'Spurs',\n  points: 30,\n  rebounds: 12 }<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que os documentos s\u00e3o classificados aumentando o campo \u201cpontos\u201d (do menor para o maior) e depois aumentando o campo \u201crebotes\u201d (do menor para o maior).<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Exemplo 2: Classificar por v\u00e1rios campos no MongoDB (decrescente)<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Podemos usar o c\u00f3digo a seguir para classificar os documentos na cole\u00e7\u00e3o <span style=\"padding: 1px; border: 1px solid black;\">de equipes<\/span> primeiro diminuindo os \u201cpontos\u201d e depois diminuindo as \u201crejei\u00e7\u00f5es\u201d:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>db.teams.find().sort( { \" <span style=\"color: #ff0000;\">points<\/span> \": -1, \" <span style=\"color: #ff0000;\">rebounds<\/span> \": -1 } )\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Esta consulta retorna os seguintes resultados:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>{ _id: ObjectId(\"61f952c167f1c64a1afb203a\"),\n  team: 'Spurs',\n  points: 30,\n  rebounds: 12 }\n{ _id: ObjectId(\"61f952c167f1c64a1afb2039\"),\n  team: 'Mavs',\n  points: 30,\n  rebounds: 8 }\n{ _id: ObjectId(\"61f952c167f1c64a1afb203d\"),\n  team: 'Cavs',\n  points: 25,\n  rebounds: 9 }\n{ _id: ObjectId(\"61f952c167f1c64a1afb203c\"),\n  team: 'Warriors',\n  points: 25,\n  rebounds: 5 }\n{ _id: ObjectId(\"61f952c167f1c64a1afb203b\"),\n  team: 'Rockets',\n  points: 20,\n  rebounds: 7 }<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Observe que os documentos s\u00e3o classificados diminuindo o campo \u201cpontos\u201d (do maior para o menor) e depois diminuindo o campo \u201crebotes\u201d (do maior para o menor).<\/span><\/p>\n<p> <span style=\"color: #000000;\"><strong>Nota<\/strong> : Voc\u00ea pode encontrar a documenta\u00e7\u00e3o completa da fun\u00e7\u00e3o <strong>sort<\/strong> <a href=\"https:\/\/docs.mongodb.com\/manual\/reference\/method\/cursor.sort\/\" target=\"_blank\" rel=\"noopener\">aqui<\/a> .<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Recursos adicionais<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">Os tutoriais a seguir explicam como realizar outras opera\u00e7\u00f5es comuns no MongoDB:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/pt\/mongodb-classificar-por-data\/\" target=\"_blank\" rel=\"noopener\">MongoDB: Como classificar por data<\/a><br \/> <a href=\"https:\/\/statorials.org\/pt\/grupo-mongodb-por-numero\/\" target=\"_blank\" rel=\"noopener\">MongoDB: Como agrupar e contar<\/a><br \/><a href=\"https:\/\/statorials.org\/pt\/grupo-mongodb-por-varios-campos\/\" target=\"_blank\" rel=\"noopener\">MongoDB: Como agrupar por v\u00e1rios campos<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Voc\u00ea pode usar a seguinte sintaxe para classificar documentos no MongoDB por v\u00e1rios campos: db.myCollection.find().sort( { &#8221; field1 &#8220;: 1, &#8221; field2 &#8220;: -1 } ) Este c\u00f3digo espec\u00edfico classifica os documentos na cole\u00e7\u00e3o chamada myCollection primeiro pelo campo 1 em ordem crescente e depois pelo campo 2 em ordem decrescente. Os exemplos a seguir [&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-2720","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>MongoDB: Como classificar por v\u00e1rios campos - Estatoriais<\/title>\n<meta name=\"description\" content=\"Este tutorial explica como classificar v\u00e1rios campos no MongoDB, com v\u00e1rios exemplos.\" \/>\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\/mongodb-classifica-por-varios-campos\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MongoDB: Como classificar por v\u00e1rios campos - Estatoriais\" \/>\n<meta property=\"og:description\" content=\"Este tutorial explica como classificar v\u00e1rios campos no MongoDB, com v\u00e1rios exemplos.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/statorials.org\/pt\/mongodb-classifica-por-varios-campos\/\" \/>\n<meta property=\"og:site_name\" content=\"Statorials\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-21T00:34:46+00:00\" \/>\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\/mongodb-classifica-por-varios-campos\/\",\"url\":\"https:\/\/statorials.org\/pt\/mongodb-classifica-por-varios-campos\/\",\"name\":\"MongoDB: Como classificar por v\u00e1rios campos - Estatoriais\",\"isPartOf\":{\"@id\":\"https:\/\/statorials.org\/pt\/#website\"},\"datePublished\":\"2023-07-21T00:34:46+00:00\",\"dateModified\":\"2023-07-21T00:34:46+00:00\",\"author\":{\"@id\":\"https:\/\/statorials.org\/pt\/#\/schema\/person\/e08f98e8db95e0aa9c310e1b27c9c666\"},\"description\":\"Este tutorial explica como classificar v\u00e1rios campos no MongoDB, com v\u00e1rios exemplos.\",\"breadcrumb\":{\"@id\":\"https:\/\/statorials.org\/pt\/mongodb-classifica-por-varios-campos\/#breadcrumb\"},\"inLanguage\":\"pt-PT\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/statorials.org\/pt\/mongodb-classifica-por-varios-campos\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/statorials.org\/pt\/mongodb-classifica-por-varios-campos\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Lar\",\"item\":\"https:\/\/statorials.org\/pt\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Mongodb: como classificar por v\u00e1rios campos\"}]},{\"@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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