{"id":19066,"date":"2025-04-24T11:00:15","date_gmt":"2025-04-24T08:00:15","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/"},"modified":"2025-04-24T11:00:15","modified_gmt":"2025-04-24T08:00:15","slug":"esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/","title":{"rendered":"esProc ile Veri Setinde Yinelenen \u0130\u00e7eri\u011fi Null Olarak Atama"},"content":{"rendered":"<p>esProc ile Veri Setinde Yinelenen \u0130\u00e7eri\u011fi Null Olarak Atama<\/p>\n<p>Merhaba! Ben Fatih Soysal ve bu yaz\u0131da sizlere esProc kullanarak veri setlerinizdeki yinelenen de\u011ferleri nas\u0131l null (bo\u015f) olarak atayaca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m g\u00f6sterece\u011fim.  Bu, veri temizli\u011fi ve veri analizi s\u00fcre\u00e7lerinde olduk\u00e7a faydal\u0131 bir tekniktir.  \u00d6ncelikle,  sorunun ne oldu\u011funu ve neden \u00f6nemli oldu\u011funu a\u00e7\u0131klayal\u0131m.  Yinelenen veriler, analiz sonu\u00e7lar\u0131n\u0131z\u0131n do\u011frulu\u011funu etkileyebilir ve yan\u0131lt\u0131c\u0131 sonu\u00e7lara yol a\u00e7abilir.  Bu y\u00fczden, yinelenen verileri tespit edip bunlar\u0131 y\u00f6netmek \u00f6nemlidir.  esProc, bu konuda olduk\u00e7a g\u00fc\u00e7l\u00fc ve kullan\u0131\u015fl\u0131 bir ara\u00e7t\u0131r.<\/p>\n<h2>Yinelenen Verileri Tespit Etme<\/h2>\n<p>\u0130lk ad\u0131m, veri setinizdeki yinelenen de\u011ferleri bulmakt\u0131r.  esProc&#8217;un g\u00fc\u00e7l\u00fc veri i\u015fleme yetenekleri sayesinde bunu kolayca yapabilirsiniz. \u00d6rne\u011fin,  a\u015fa\u011f\u0131daki esProc kodu, &#8220;musteri_adi&#8221; s\u00fctununda yinelenen de\u011ferleri bulur ve bunlar\u0131 i\u00e7eren sat\u0131rlar\u0131 filtreler:<\/p>\n<pre><code class=\"language-esproc\">\nA = file(\"veri.csv\").read(); \/\/ Veri dosyan\u0131z\u0131 okuyun\nA.group(\"musteri_adi\").having(\"count(*) > 1\"); \/\/ Yinelenen m\u00fc\u015fteri isimlerini bulun\n<\/code><\/pre>\n<p>Bu kod,  &#8220;veri.csv&#8221; dosyas\u0131n\u0131 okur ve &#8220;musteri_adi&#8221; s\u00fctununa g\u00f6re grupland\u0131rma yapar.  Ard\u0131ndan,  &#8220;having&#8221; fonksiyonu ile her grupta birden fazla kay\u0131t varsa (yani yinelenen m\u00fc\u015fteri ad\u0131 varsa) o gruplar\u0131 filtreler.  Sonu\u00e7 olarak, yinelenen m\u00fc\u015fteri adlar\u0131n\u0131 i\u00e7eren sat\u0131rlar elde edersiniz.  Bu noktada,  veri setinizin yap\u0131s\u0131na g\u00f6re  &#8220;musteri_adi&#8221; yerine ilgili s\u00fctun ad\u0131n\u0131 kullanman\u0131z gerekmektedir.  Elbette,  di\u011fer s\u00fctunlar i\u00e7in de ayn\u0131 i\u015flemi tekrarlayabilirsiniz.  \u00d6rne\u011fin,  hem &#8220;musteri_adi&#8221; hem de &#8220;urun_adi&#8221; s\u00fctunlar\u0131nda yinelenen verileri tespit etmek i\u00e7in daha karma\u015f\u0131k sorgular yazman\u0131z gerekebilir.<\/p>\n<h2>Yinelenen Verileri Null Olarak Atama<\/h2>\n<p>Yinelenen verileri tespit ettikten sonra,  bunlar\u0131 null olarak atamak i\u00e7in a\u015fa\u011f\u0131daki esProc kodunu kullanabilirsiniz:<\/p>\n<pre><code class=\"language-esproc\">\nA = file(\"veri.csv\").read();\nB = A.group(\"musteri_adi\").aggregate(max(\"musteri_adi\")); \/\/Her m\u00fc\u015fteri i\u00e7in ilk kayd\u0131 al\nC = A.join(B,\"musteri_adi\").select(if(A.musteri_adi==B.musteri_adi,null,A.musteri_adi)); \/\/ \u0130lk kay\u0131t d\u0131\u015f\u0131ndakileri null yap\nC.write(\"sonuc.csv\"); \/\/Sonucu kaydet\n<\/code><\/pre>\n<p>Bu kod, \u00f6ncelikle verileri okur. Daha sonra, her m\u00fc\u015fteri ad\u0131 i\u00e7in yaln\u0131zca ilk kayd\u0131 al\u0131r ve  di\u011fer yinelenen kay\u0131tlar\u0131n ilgili s\u00fctununu null yapar. Son olarak,  sonucu &#8220;sonuc.csv&#8221; adl\u0131 bir dosyaya yazar.  Bu,  yinelenen verileri temizlemenin etkili bir yoludur.  Burada,  if ko\u015fulu ile ilk kay\u0131t hari\u00e7 di\u011fer t\u00fcm yinelenen m\u00fc\u015fteri adlar\u0131n\u0131 null olarak ayarl\u0131yoruz.   Bu kodun \u00f6zelle\u015ftirilmesi, veri setinizin yap\u0131s\u0131na g\u00f6re de\u011fi\u015febilir.  \u00d6rne\u011fin,  farkl\u0131 bir s\u00fctun i\u00e7in yinelenen verileri null yapman\u0131z gerekiyorsa,  kodda ilgili s\u00fctun ad\u0131n\u0131 de\u011fi\u015ftirmeniz yeterlidir.  Kodun mant\u0131\u011f\u0131n\u0131 anlamak, farkl\u0131 senaryolarda uyarlaman\u0131z\u0131 sa\u011flayacakt\u0131r.<\/p>\n<h2>esProc&#8217;un Avantajlar\u0131<\/h2>\n<p>esProc,  veri i\u015flemede olduk\u00e7a g\u00fc\u00e7l\u00fc ve kullan\u0131\u015fl\u0131d\u0131r.  Bu y\u00f6ntemin avantajlar\u0131ndan baz\u0131lar\u0131,  h\u0131zl\u0131 i\u015flem yapmas\u0131,  kolay anla\u015f\u0131l\u0131r s\u00f6zdizimi ve  geni\u015f bir fonksiyon yelpazesi sunmas\u0131d\u0131r.  esProc ile karma\u015f\u0131k veri i\u015fleme i\u015flemlerini bile kolayca ger\u00e7ekle\u015ftirebilirsiniz.   Daha fazla bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> adresini ziyaret edebilirsiniz.<\/p>\n<p>Umar\u0131m bu makale, esProc ile veri setlerinde yinelenen i\u00e7eri\u011fi null olarak atama konusunda size yard\u0131mc\u0131 olmu\u015ftur.  Herhangi bir sorunuz veya \u00f6neriniz varsa,  l\u00fctfen bana bildirin.  Veri analizi d\u00fcnyas\u0131nda ba\u015far\u0131lar dilerim!<\/p>\n<p><strong>Faydal\u0131 Kaynaklar:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/dev.to\/esproc_spl\/how-to-set-duplicate-content-in-a-dataset-to-null-with-esproc-1n8h\">esProc ile Yinelenen Verileri Null Yapma (\u0130ngilizce)<\/a><\/li>\n<li><a href=\"https:\/\/www.esproc.com\/\">esProc Resmi Web Sitesi<\/a><\/li>\n<\/ul>\n<p>#Etiketler: esProc, veri temizleme, yinelenen veri, null de\u011fer, veri analizi, veri i\u015fleme, SQL, veri y\u00f6netimi,  Fatih Soysal<\/p>\n","protected":false},"excerpt":{"rendered":"esProc ile Veri Setinde Yinelenen \u0130\u00e7eri\u011fi Null Olarak Atama Merhaba! Ben Fatih Soysal ve bu yaz\u0131da sizlere esProc&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-19066","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>esProc ile Veri Setinde Yinelenen \u0130\u00e7eri\u011fi Null Olarak Atama<\/title>\n<meta name=\"description\" content=\"Merhaba! Ben Fatih Soysal ve bu yaz\u0131da sizlere esProc kullanarak veri setlerinizdeki yinelenen de\u011ferleri nas\u0131l null (bo\u015f) olarak atayaca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m g\u00f6sterece\u011fim. Bu, veri temizli\u011fi ve veri analizi s\u00fcre\u00e7lerinde olduk\u00e7a faydal\u0131 bir tekniktir. \u00d6ncelikle, sorunun ne oldu\u011funu ve neden \u00f6nemli oldu\u011funu a\u00e7\u0131klayal\u0131m. Yinelenen veriler, analiz sonu\u00e7lar\u0131n\u0131z\u0131n do\u011frulu\u011funu etkileyebilir ve yan\u0131lt\u0131c\u0131 sonu\u00e7lara yol a\u00e7abilir. Bu y\u00fczden, yinelenen verileri tespit edip bunlar\u0131 y\u00f6netmek \u00f6nemlidir. esProc, bu konuda olduk\u00e7a g\u00fc\u00e7l\u00fc ve kullan\u0131\u015fl\u0131 bir ara\u00e7t\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:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"esProc ile Veri Setinde Yinelenen \u0130\u00e7eri\u011fi Null Olarak Atama\" \/>\n<meta property=\"og:description\" content=\"Merhaba! Ben Fatih Soysal ve bu yaz\u0131da sizlere esProc kullanarak veri setlerinizdeki yinelenen de\u011ferleri nas\u0131l null (bo\u015f) olarak atayaca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m g\u00f6sterece\u011fim. Bu, veri temizli\u011fi ve veri analizi s\u00fcre\u00e7lerinde olduk\u00e7a faydal\u0131 bir tekniktir. \u00d6ncelikle, sorunun ne oldu\u011funu ve neden \u00f6nemli oldu\u011funu a\u00e7\u0131klayal\u0131m. Yinelenen veriler, analiz sonu\u00e7lar\u0131n\u0131z\u0131n do\u011frulu\u011funu etkileyebilir ve yan\u0131lt\u0131c\u0131 sonu\u00e7lara yol a\u00e7abilir. Bu y\u00fczden, yinelenen verileri tespit edip bunlar\u0131 y\u00f6netmek \u00f6nemlidir. esProc, bu konuda olduk\u00e7a g\u00fc\u00e7l\u00fc ve kullan\u0131\u015fl\u0131 bir ara\u00e7t\u0131r.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-04-24T08:00:15+00:00\" \/>\n<meta name=\"author\" content=\"Fatih Soysal\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Yazan:\" \/>\n\t<meta name=\"twitter:data1\" content=\"Fatih Soysal\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tahmini okuma s\u00fcresi\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"esProc ile Veri Setinde Yinelenen \u0130\u00e7eri\u011fi Null Olarak Atama\",\"datePublished\":\"2025-04-24T08:00:15+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/\"},\"wordCount\":560,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/esproc-ile-veri-setinde-yinelenen-icerigi-null-olarak-atama\/\",\"name\":\"esProc ile Veri Setinde Yinelenen \u0130\u00e7eri\u011fi Null Olarak Atama\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-04-24T08:00:15+00:00\",\"description\":\"Merhaba! Ben Fatih Soysal ve bu yaz\u0131da sizlere esProc kullanarak veri setlerinizdeki yinelenen de\u011ferleri nas\u0131l null (bo\u015f) olarak atayaca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m g\u00f6sterece\u011fim. Bu, veri temizli\u011fi ve veri analizi s\u00fcre\u00e7lerinde olduk\u00e7a faydal\u0131 bir tekniktir. \u00d6ncelikle, sorunun ne oldu\u011funu ve neden \u00f6nemli oldu\u011funu a\u00e7\u0131klayal\u0131m. Yinelenen veriler, analiz sonu\u00e7lar\u0131n\u0131z\u0131n do\u011frulu\u011funu etkileyebilir ve yan\u0131lt\u0131c\u0131 sonu\u00e7lara yol a\u00e7abilir. 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Ben Fatih Soysal ve bu yaz\u0131da sizlere esProc kullanarak veri setlerinizdeki yinelenen de\u011ferleri nas\u0131l null (bo\u015f) olarak atayaca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m g\u00f6sterece\u011fim. Bu, veri temizli\u011fi ve veri analizi s\u00fcre\u00e7lerinde olduk\u00e7a faydal\u0131 bir tekniktir. \u00d6ncelikle, sorunun ne oldu\u011funu ve neden \u00f6nemli oldu\u011funu a\u00e7\u0131klayal\u0131m. Yinelenen veriler, analiz sonu\u00e7lar\u0131n\u0131z\u0131n do\u011frulu\u011funu etkileyebilir ve yan\u0131lt\u0131c\u0131 sonu\u00e7lara yol a\u00e7abilir. 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