{"id":2445,"date":"2023-07-22T06:16:57","date_gmt":"2023-07-22T06:16:57","guid":{"rendered":"https:\/\/statorials.org\/tr\/mongodb-kopyalari-bulur\/"},"modified":"2023-07-22T06:16:57","modified_gmt":"2023-07-22T06:16:57","slug":"mongodb-kopyalari-bulur","status":"publish","type":"post","link":"https:\/\/statorials.org\/tr\/mongodb-kopyalari-bulur\/","title":{"rendered":"Mongodb&#39;de kopyalar nas\u0131l bulunur?"},"content":{"rendered":"<p><\/p>\n<hr>\n<p><span style=\"color: #000000;\">MongoDB&#8217;de yinelenen de\u011ferlere sahip belgeleri bulmak i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanabilirsiniz:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>db.collection.aggregate([\n    {\" <span style=\"color: #ff0000;\">$group<\/span> \": { \"_id\": \" <span style=\"color: #ff0000;\">$field1<\/span> \", \"count\": { \" <span style=\"color: #ff0000;\">$sum<\/span> \": 1 } } },\n    {\" <span style=\"color: #ff0000;\">$match<\/span> \": {\"_id\" :{ \" <span style=\"color: #ff0000;\">$ne<\/span> \" : null } , \"count\" : {\" <span style=\"color: #ff0000;\">$gt<\/span> \": 1} } }, \n    {\" <span style=\"color: #ff0000;\">$project<\/span> \": {\"name\": \" <span style=\"color: #ff0000;\">$_id<\/span> \", \"_id\": 0} }\n])\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">\u0130\u015fte bu s\u00f6zdiziminin yapt\u0131\u011f\u0131 \u015fey:<\/span><\/p>\n<ul>\n<li> <span style=\"color: #000000;\">Alan 1&#8217;de ayn\u0131 de\u011fere sahip t\u00fcm belgeleri <strong>grupland\u0131r\u0131n<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">Birden fazla belgeye sahip gruplar\u0131 <strong>e\u015fle\u015ftirin<\/strong><\/span><\/li>\n<li> <span style=\"color: #000000;\">Birden fazla belgeye sahip t\u00fcm gruplar\u0131 <strong>projelendirin<\/strong><\/span><\/li>\n<\/ul>\n<p> <span style=\"color: #000000;\">Bu \u00f6zel sorgu, <strong>field1<\/strong> s\u00fctununda yinelenen de\u011ferleri arar. Arama yap\u0131lacak alan\u0131 de\u011fi\u015ftirmek i\u00e7in bu de\u011feri d\u00fczenlemeniz yeterlidir.<\/span><\/p>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki \u00f6rnek, bu s\u00f6zdiziminin a\u015fa\u011f\u0131daki belgelere sahip bir koleksiyon <span style=\"padding: 1px; border: 1px solid black;\">ekibiyle<\/span> nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 g\u00f6sterir:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>db.teams.insertOne({team: \" <span style=\"color: #008000;\">Mavs<\/span> \", position: \" <span style=\"color: #008000;\">Guard<\/span> \", points: <span style=\"color: #ff0000;\">31<\/span> })<\/strong>\n<strong>db.teams.insertOne({team: \" <span style=\"color: #008000;\">Mavs<\/span> \", position: \" <span style=\"color: #008000;\">Guard<\/span> \", points: <span style=\"color: #ff0000;\">22<\/span> })<\/strong>\n<strong>db.teams.insertOne({team: \" <span style=\"color: #008000;\">Rockets<\/span> \", position: \" <span style=\"color: #008000;\">Center<\/span> \", points: <span style=\"color: #ff0000;\">19<\/span> })<\/strong>\n<strong>db.teams.insertOne({team: \" <span style=\"color: #008000;\">Rockets<\/span> \", position: \" <span style=\"color: #008000;\">Forward<\/span> \", points: <span style=\"color: #ff0000;\">26<\/span> })<\/strong>\n<strong>db.teams.insertOne({team: \" <span style=\"color: #008000;\">Cavs<\/span> \", position: \" <span style=\"color: #008000;\">Guard<\/span> \", points: <span style=\"color: #ff0000;\">33<\/span> })<\/strong><\/pre>\n<h3> <span style=\"color: #000000;\"><strong>\u00d6rnek: Yinelenen de\u011ferlere sahip belgeleri bulma<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">&#8220;Tak\u0131m&#8221; s\u00fctunundaki t\u00fcm yinelenen de\u011ferleri bulmak i\u00e7in a\u015fa\u011f\u0131daki kodu kullanabiliriz:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>db.teams.aggregate([\n    {\" <span style=\"color: #ff0000;\">$group<\/span> \": { \"_id\": \" <span style=\"color: #ff0000;\">$team<\/span> \", \"count\": { \" <span style=\"color: #ff0000;\">$sum<\/span> \": 1 } } },\n    {\" <span style=\"color: #ff0000;\">$match<\/span> \": {\"_id\" :{ \" <span style=\"color: #ff0000;\">$ne<\/span> \" : null } , \"count\" : {\" <span style=\"color: #ff0000;\">$gt<\/span> \": 1} } }, \n    {\" <span style=\"color: #ff0000;\">$project<\/span> \": {\"name\": \" <span style=\"color: #ff0000;\">$_id<\/span> \", \"_id\": 0} }\n])<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Bu sorgu a\u015fa\u011f\u0131daki sonu\u00e7lar\u0131 d\u00f6nd\u00fcr\u00fcr:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>{ name: 'Rockets' }\n{ name: 'Mavs' }<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Bu bize &#8220;Rockets&#8221; ve &#8220;Mavs&#8221; de\u011ferlerinin &#8220;tak\u0131m&#8221; alan\u0131nda birden \u00e7ok kez g\u00f6r\u00fcnd\u00fc\u011f\u00fcn\u00fc s\u00f6yl\u00fcyor.<\/span><\/p>\n<p> <span style=\"color: #000000;\">Bunun yerine &#8220;pozisyon&#8221; alan\u0131nda yinelenen de\u011ferleri aramak i\u00e7in <strong>$team&#8217;i<\/strong> <strong>$position<\/strong> ile de\u011fi\u015ftirebilece\u011fimizi unutmay\u0131n:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>db.teams.aggregate([\n    {\" <span style=\"color: #ff0000;\">$group<\/span> \": { \"_id\": \" <span style=\"color: #ff0000;\">$position<\/span> \", \"count\": { \" <span style=\"color: #ff0000;\">$sum<\/span> \": 1 } } },\n    {\" <span style=\"color: #ff0000;\">$match<\/span> \": {\"_id\" :{ \" <span style=\"color: #ff0000;\">$ne<\/span> \" : null } , \"count\" : {\" <span style=\"color: #ff0000;\">$gt<\/span> \": 1} } }, \n    {\" <span style=\"color: #ff0000;\">$project<\/span> \": {\"name\": \" <span style=\"color: #ff0000;\">$_id<\/span> \", \"_id\": 0} }\n])<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Bu sorgu a\u015fa\u011f\u0131daki sonu\u00e7lar\u0131 d\u00f6nd\u00fcr\u00fcr:<\/span><\/p>\n<pre style=\"background-color: #ececec; font-size: 15px;\"> <strong>{ name: 'Guard' }\n<\/strong><\/pre>\n<p> <span style=\"color: #000000;\">Bu bize \u201cPozisyon\u201d alan\u0131nda \u201cGuard\u201d\u0131n birka\u00e7 kez g\u00f6r\u00fcnd\u00fc\u011f\u00fcn\u00fc s\u00f6yler.<\/span><\/p>\n<h3> <span style=\"color: #000000;\"><strong>Ek kaynaklar<\/strong><\/span><\/h3>\n<p> <span style=\"color: #000000;\">A\u015fa\u011f\u0131daki e\u011fitimlerde MongoDB&#8217;de di\u011fer yayg\u0131n i\u015flemlerin nas\u0131l ger\u00e7ekle\u015ftirilece\u011fi a\u00e7\u0131klanmaktad\u0131r:<\/span><\/p>\n<p> <a href=\"https:\/\/statorials.org\/tr\/mongodb-alan-ekleme\/\" target=\"_blank\" rel=\"noopener\">MongoDB: Koleksiyona yeni bir alan nas\u0131l eklenir?<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/mongodb-numarasina-gore-grup\/\" target=\"_blank\" rel=\"noopener\">MongoDB: Nas\u0131l grupland\u0131r\u0131l\u0131r ve say\u0131l\u0131r?<\/a><br \/> <a href=\"https:\/\/statorials.org\/tr\/birden-fazla-alana-gore-mongodb-grubu\/\" target=\"_blank\" rel=\"noopener\">MongoDB: Birden fazla alana g\u00f6re nas\u0131l grupland\u0131r\u0131l\u0131r<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>MongoDB&#8217;de yinelenen de\u011ferlere sahip belgeleri bulmak i\u00e7in a\u015fa\u011f\u0131daki s\u00f6zdizimini kullanabilirsiniz: db.collection.aggregate([ {&#8221; $group &#8220;: { &#8220;_id&#8221;: &#8221; $field1 &#8220;, &#8220;count&#8221;: { &#8221; $sum &#8220;: 1 } } }, {&#8221; $match &#8220;: {&#8220;_id&#8221; :{ &#8221; $ne &#8221; : null } , &#8220;count&#8221; : {&#8221; $gt &#8220;: 1} } }, {&#8221; $project &#8220;: {&#8220;name&#8221;: &#8221; $_id &#8220;, [&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-2445","post","type-post","status-publish","format-standard","hentry","category-rehber"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>MongoDB&#039;de kopyalar nas\u0131l bulunur - Statorials<\/title>\n<meta name=\"description\" content=\"Bu e\u011fitimde MongoDB&#039;de yinelenen de\u011ferlerin nas\u0131l bulunaca\u011f\u0131 \u00e7e\u015fitli \u00f6rneklerle a\u00e7\u0131klanmaktad\u0131r.\" \/>\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\/tr\/mongodb-kopyalari-bulur\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta 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