{"id":15386,"date":"2025-03-17T00:15:16","date_gmt":"2025-03-16T21:15:16","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/"},"modified":"2025-03-17T00:15:16","modified_gmt":"2025-03-16T21:15:16","slug":"yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/","title":{"rendered":"Y\u0131ld\u0131z \u015eemas\u0131: Veri Ambar\u0131 Hilesi &#8211; Uzmanlar Neden Sevmiyor?"},"content":{"rendered":"<p><body><\/p>\n<p>Y\u0131ld\u0131z \u015eemas\u0131: Veri Ambar\u0131 Hilesi &#8211; Uzmanlar Neden Sevmiyor?<\/p>\n<p>Veri ambarlar\u0131 d\u00fcnyas\u0131nda, basitli\u011fi ve etkinli\u011fi ile \u00f6ne \u00e7\u0131kan bir tasar\u0131m vard\u0131r: Y\u0131ld\u0131z \u015femas\u0131.  Ancak, bu basitlik baz\u0131 uzmanlar taraf\u0131ndan ele\u015ftiri konusu olmu\u015ftur.  Peki, y\u0131ld\u0131z \u015femas\u0131n\u0131n bu kadar pop\u00fcler olmas\u0131n\u0131n sebebi nedir ve uzmanlar neden bundan ho\u015flanmazlar? Bu makalede, y\u0131ld\u0131z \u015femas\u0131n\u0131 detayl\u0131 bir \u015fekilde inceleyecek ve bu sorulara yan\u0131t arayaca\u011f\u0131z.<\/p>\n<h2>Y\u0131ld\u0131z \u015eemas\u0131 Nedir?<\/h2>\n<p>Y\u0131ld\u0131z \u015femas\u0131, bir veri ambar\u0131n\u0131n verilerini organize etmenin en yayg\u0131n y\u00f6ntemlerinden biridir.  Bu mimaride, merkezi bir &#8220;ger\u00e7ek tablo&#8221; (fact table) bulunur.  Bu tablo, i\u015f \u00f6l\u00e7\u00fctlerini (\u00f6rne\u011fin, sat\u0131\u015flar, gelirler) i\u00e7erir.  Ger\u00e7ek tabloya, boyut tablolar\u0131 (dimension tables) ba\u011flan\u0131r. Boyut tablolar\u0131, i\u015f \u00f6l\u00e7\u00fctlerine ba\u011flam kazand\u0131ran nitelikleri (\u00f6rne\u011fin, zaman, \u00fcr\u00fcn, m\u00fc\u015fteri) tutar.  \u00d6rne\u011fin, bir e-ticaret \u015firketinin veri ambar\u0131nda, ger\u00e7ek tablo sat\u0131\u015flar\u0131 i\u00e7erirken, boyut tablolar\u0131 m\u00fc\u015fteri bilgileri, \u00fcr\u00fcn \u00f6zellikleri ve sat\u0131\u015f tarihleri gibi bilgileri tutabilir.  Bu basit ve sezgisel yap\u0131, h\u0131zl\u0131 sorgulama ve raporlama i\u015flemlerini m\u00fcmk\u00fcn k\u0131lar.<\/p>\n<p>Basit yap\u0131s\u0131 sayesinde, y\u0131ld\u0131z \u015femas\u0131 \u00f6zellikle OLAP (Online Analytical Processing) sorgular\u0131 i\u00e7in idealdir.  OLAP sorgular\u0131, b\u00fcy\u00fck miktarda veriyi analiz etmek ve karma\u015f\u0131k sorulara yan\u0131t bulmak i\u00e7in kullan\u0131l\u0131r.  Y\u0131ld\u0131z \u015femas\u0131n\u0131n yap\u0131s\u0131, bu sorgular\u0131n verimli bir \u015fekilde i\u015flenmesini sa\u011flar.<\/p>\n<h2>Uzmanlar\u0131n Ele\u015ftirileri<\/h2>\n<p>Y\u0131ld\u0131z \u015femas\u0131n\u0131n pop\u00fclaritesine ra\u011fmen, baz\u0131 uzmanlar taraf\u0131ndan ele\u015ftirilmektedir.  Bunun ba\u015fl\u0131ca nedenleri \u015funlard\u0131r:<\/p>\n<ul>\n<li><strong>Veri Redundanss\u0131:<\/strong> Boyut tablolar\u0131nda veri tekrar\u0131 olabilir.  \u00d6rne\u011fin, her bir \u00fcr\u00fcn i\u00e7in \u00fcr\u00fcn ad\u0131, kategorisi gibi bilgiler tekrar tekrar kaydedilir.  Bu, depolama alan\u0131n\u0131 art\u0131r\u0131r.<\/li>\n<li><strong>Veri G\u00fcncelleme Zorlu\u011fu:<\/strong>  Boyut tablolar\u0131ndaki verileri g\u00fcncellemek, veri tutarl\u0131l\u0131\u011f\u0131n\u0131 sa\u011flamak i\u00e7in dikkatli bir \u015fekilde yap\u0131lmal\u0131d\u0131r.  Bir boyut tablosundaki bir de\u011fi\u015fikli\u011fin, ger\u00e7ek tabloyu ve di\u011fer boyut tablolar\u0131n\u0131 da etkileyebilece\u011fi g\u00f6z \u00f6n\u00fcnde bulundurulmal\u0131d\u0131r.<\/li>\n<li><strong>Karma\u015f\u0131k Sorgu Durumlar\u0131:<\/strong> \u00c7ok boyutlu analiz gerekti\u011finde, y\u0131ld\u0131z \u015femas\u0131 yetersiz kalabilir ve daha karma\u015f\u0131k \u015fema tasar\u0131mlar\u0131na ihtiya\u00e7 duyulabilir.  \u00d6rne\u011fin, y\u0131ld\u0131z \u015femas\u0131nda \u201c\u00e7o\u011fa \u00e7ok\u201d ili\u015fkileri ele almak zor olabilir.<\/li>\n<\/ul>\n<h2>Y\u0131ld\u0131z \u015eemas\u0131n\u0131n Avantajlar\u0131 ve Dezavantajlar\u0131<\/h2>\n<p>Sonu\u00e7 olarak, y\u0131ld\u0131z \u015femas\u0131 basitli\u011fi ve performans\u0131yla \u00f6ne \u00e7\u0131kar. Ancak, \u00f6l\u00e7eklenebilirlik ve veri g\u00fcncelleme konular\u0131nda dikkatli olunmas\u0131 gerekir.  Bu nedenle, projenizin \u00f6zel gereksinimlerini g\u00f6z \u00f6n\u00fcnde bulundurarak do\u011fru veri ambar\u0131 mimarisini se\u00e7mek \u00f6nemlidir.  Daha fazla bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> adresini ziyaret edebilirsiniz.<\/p>\n<p>Y\u0131ld\u0131z \u015femas\u0131n\u0131n kullan\u0131m\u0131, veri ambar\u0131n\u0131z\u0131n boyutu ve karma\u015f\u0131kl\u0131\u011f\u0131na ba\u011fl\u0131d\u0131r.  K\u00fc\u00e7\u00fck ve orta \u00f6l\u00e7ekli veri ambarlar\u0131 i\u00e7in ideal bir \u00e7\u00f6z\u00fcm olabilir. Ancak, \u00e7ok b\u00fcy\u00fck ve karma\u015f\u0131k veri ambarlar\u0131 i\u00e7in, daha karma\u015f\u0131k \u015fema tasar\u0131mlar\u0131 daha uygun olabilir.  Ayr\u0131ca, veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc sa\u011flamak ve performans\u0131 optimize etmek i\u00e7in uygun indeksleme ve sorgular\u0131 optimize etmek \u00f6nemlidir.<\/p>\n<p>Bir\u00e7ok kaynak, y\u0131ld\u0131z \u015femas\u0131n\u0131n avantajlar\u0131n\u0131 ve dezavantajlar\u0131n\u0131 detayl\u0131 olarak ele almaktad\u0131r.  Bu konuda daha fazla bilgi edinmek i\u00e7in <a href=\"https:\/\/dev.to\/spkibe\/star-schema-the-data-warehouse-hack-so-simple-experts-hate-it-4eef\">bu makaleye<\/a> g\u00f6z atabilirsiniz.<\/p>\n<h3>Sonu\u00e7<\/h3>\n<p>Y\u0131ld\u0131z \u015femas\u0131, veri ambar tasar\u0131m\u0131 i\u00e7in g\u00fc\u00e7l\u00fc ve yayg\u0131n kullan\u0131lan bir yakla\u015f\u0131md\u0131r.  Basitli\u011fi ve performans\u0131 bir\u00e7ok avantaj sunar, ancak veri redondans\u0131 ve g\u00fcncelleme zorluklar\u0131 gibi dezavantajlar\u0131 da vard\u0131r.  Do\u011fru bir tasar\u0131m i\u00e7in projenizin \u00f6zel ihtiya\u00e7lar\u0131n\u0131 dikkate almak \u00e7ok \u00f6nemlidir. Ak\u0131ll\u0131ca kullan\u0131ld\u0131\u011f\u0131nda, y\u0131ld\u0131z \u015femas\u0131 veri ambar\u0131n\u0131z\u0131n performans\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rabilir.<\/p>\n<p>#Etiketler: Y\u0131ld\u0131z \u015eemas\u0131, Veri Ambar\u0131, Data Warehouse, Veri Mimarisi, OLAP, OLTP, SQL, Veritaban\u0131, Veri Redundanss\u0131, Boyut Tablosu, Ger\u00e7ek Tablo<br \/>\n<\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Y\u0131ld\u0131z \u015eemas\u0131: Veri Ambar\u0131 Hilesi &#8211; Uzmanlar Neden Sevmiyor? Veri ambarlar\u0131 d\u00fcnyas\u0131nda, basitli\u011fi ve etkinli\u011fi ile \u00f6ne \u00e7\u0131kan&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-15386","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>Y\u0131ld\u0131z \u015eemas\u0131: Veri Ambar\u0131 Hilesi - Uzmanlar Neden Sevmiyor?<\/title>\n<meta name=\"description\" content=\"Veri ambarlar\u0131 d\u00fcnyas\u0131nda, basitli\u011fi ve etkinli\u011fi ile \u00f6ne \u00e7\u0131kan bir tasar\u0131m vard\u0131r: Y\u0131ld\u0131z \u015femas\u0131. Ancak, bu basitlik baz\u0131 uzmanlar taraf\u0131ndan ele\u015ftiri konusu olmu\u015ftur. Peki, y\u0131ld\u0131z \u015femas\u0131n\u0131n bu kadar pop\u00fcler olmas\u0131n\u0131n sebebi nedir ve uzmanlar neden bundan ho\u015flanmazlar? Bu makalede, y\u0131ld\u0131z \u015femas\u0131n\u0131 detayl\u0131 bir \u015fekilde inceleyecek ve bu sorulara yan\u0131t arayaca\u011f\u0131z.\" \/>\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\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Y\u0131ld\u0131z \u015eemas\u0131: Veri Ambar\u0131 Hilesi - Uzmanlar Neden Sevmiyor?\" \/>\n<meta property=\"og:description\" content=\"Veri ambarlar\u0131 d\u00fcnyas\u0131nda, basitli\u011fi ve etkinli\u011fi ile \u00f6ne \u00e7\u0131kan bir tasar\u0131m vard\u0131r: Y\u0131ld\u0131z \u015femas\u0131. Ancak, bu basitlik baz\u0131 uzmanlar taraf\u0131ndan ele\u015ftiri konusu olmu\u015ftur. Peki, y\u0131ld\u0131z \u015femas\u0131n\u0131n bu kadar pop\u00fcler olmas\u0131n\u0131n sebebi nedir ve uzmanlar neden bundan ho\u015flanmazlar? Bu makalede, y\u0131ld\u0131z \u015femas\u0131n\u0131 detayl\u0131 bir \u015fekilde inceleyecek ve bu sorulara yan\u0131t arayaca\u011f\u0131z.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-16T21:15:16+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\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"Y\u0131ld\u0131z \u015eemas\u0131: Veri Ambar\u0131 Hilesi &#8211; Uzmanlar Neden Sevmiyor?\",\"datePublished\":\"2025-03-16T21:15:16+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/\"},\"wordCount\":700,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/yildiz-semasi-veri-ambari-hilesi-uzmanlar-neden-sevmiyor\/\",\"name\":\"Y\u0131ld\u0131z \u015eemas\u0131: Veri Ambar\u0131 Hilesi - Uzmanlar Neden Sevmiyor?\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-03-16T21:15:16+00:00\",\"description\":\"Veri ambarlar\u0131 d\u00fcnyas\u0131nda, basitli\u011fi ve etkinli\u011fi ile \u00f6ne \u00e7\u0131kan bir tasar\u0131m vard\u0131r: Y\u0131ld\u0131z \u015femas\u0131. 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