{"id":12807,"date":"2025-02-18T08:15:13","date_gmt":"2025-02-18T05:15:13","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/sql-pivot-ve-unpivot-veri-donusumlerini-etkili-bir-sekilde-gerceklestirme\/"},"modified":"2025-02-18T08:15:13","modified_gmt":"2025-02-18T05:15:13","slug":"sql-pivot-ve-unpivot-veri-donusumlerini-etkili-bir-sekilde-gerceklestirme","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/sql-pivot-ve-unpivot-veri-donusumlerini-etkili-bir-sekilde-gerceklestirme\/","title":{"rendered":"SQL Pivot ve Unpivot: Veri D\u00f6n\u00fc\u015f\u00fcmlerini Etkili Bir \u015eekilde Ger\u00e7ekle\u015ftirme"},"content":{"rendered":"<p><body><\/p>\n<p>SQL Pivot ve Unpivot: Veri D\u00f6n\u00fc\u015f\u00fcmlerini Etkili Bir \u015eekilde Ger\u00e7ekle\u015ftirme<\/p>\n<p>Merhaba! Fatih Soysal olarak, SQL d\u00fcnyas\u0131n\u0131n g\u00fc\u00e7l\u00fc veri d\u00f6n\u00fc\u015f\u00fcm ara\u00e7lar\u0131ndan olan Pivot ve Unpivot i\u015flemlerini ele alaca\u011f\u0131z. Bu i\u015flemler, verilerinizi farkl\u0131 bi\u00e7imlerde sunarak analizlerinizi kolayla\u015ft\u0131r\u0131r ve raporlamalar\u0131n\u0131z\u0131 zenginle\u015ftirir.  \u00d6ncelikle,  bu iki i\u015flemin ne oldu\u011funu ve nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Ard\u0131ndan,  pratik \u00f6rneklerle kavramlar\u0131 daha iyi anlaman\u0131z\u0131 sa\u011flayaca\u011f\u0131m.  Umar\u0131m bu makale, SQL becerilerinizi geli\u015ftirmenize yard\u0131mc\u0131 olur.<\/p>\n<h2>Pivot (D\u00f6nd\u00fcrme) \u0130\u015flemi<\/h2>\n<p>Pivot i\u015flemi, sat\u0131rlarda bulunan verileri s\u00fctunlara d\u00f6n\u00fc\u015ft\u00fcr\u00fcr.  \u00d6rne\u011fin,  \u00fcr\u00fcn sat\u0131\u015flar\u0131n\u0131 ay baz\u0131nda g\u00f6steren bir tabloda, her ay\u0131n sat\u0131\u015flar\u0131n\u0131 ayr\u0131 bir s\u00fctuna ta\u015f\u0131mak i\u00e7in pivot i\u015flemini kullanabiliriz.  Bu, verileri daha okunakl\u0131 ve analiz edilebilir hale getirir.  Bu i\u015flemde,  pivot edilecek s\u00fctun,  pivot de\u011feri olarak kullan\u0131lacak s\u00fctun ve toplanacak s\u00fctun belirlenir.  A\u015fa\u011f\u0131daki \u00f6rnekte,  ayl\u0131k sat\u0131\u015flar\u0131 pivot ederek, her ay i\u00e7in ayr\u0131 bir s\u00fctun olu\u015fturaca\u011f\u0131z.<\/p>\n<pre><code class=\"language-sql\">\n-- \u00d6rnek Pivot sorgusu\nSELECT\n    ProductName,\n    SUM(CASE WHEN SalesMonth = 'Ocak' THEN SalesAmount ELSE 0 END) AS Ocak,\n    SUM(CASE WHEN SalesMonth = '\u015eubat' THEN SalesAmount ELSE 0 END) AS \u015eubat,\n    SUM(CASE WHEN SalesMonth = 'Mart' THEN SalesAmount ELSE 0 END) AS Mart\nFROM\n    SalesTable\nGROUP BY\n    ProductName;\n<\/code><\/pre>\n<p>Bu sorgu,  <code>SalesTable<\/code> tablosundaki sat\u0131\u015f verilerini,  \u00fcr\u00fcn ad\u0131 (<code>ProductName<\/code>) baz\u0131nda gruplayarak, Ocak, \u015eubat ve Mart aylar\u0131n\u0131n sat\u0131\u015flar\u0131n\u0131 ayr\u0131 s\u00fctunlarda g\u00f6sterir.  Daha fazla ay i\u00e7in,  <code>CASE<\/code> ifadesini geni\u015fletmeniz yeterlidir.  Ancak,  \u00e7ok say\u0131da ay i\u00e7in bu y\u00f6ntem pratik olmayabilir.  Baz\u0131 veritaban\u0131 sistemleri,  daha geli\u015fmi\u015f pivot fonksiyonlar\u0131 sunmaktad\u0131r.  Bu konuda daha detayl\u0131 bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\" target=\"_blank\">web sitemi<\/a> ziyaret edebilirsiniz.<\/p>\n<h2>Unpivot (Ters D\u00f6nd\u00fcrme) \u0130\u015flemi<\/h2>\n<p>Unpivot i\u015flemi,  pivot i\u015fleminin tam tersidir.  S\u00fctunlarda bulunan verileri sat\u0131rlara d\u00f6n\u00fc\u015ft\u00fcr\u00fcr.  \u00d6rne\u011fin,  her ay\u0131n sat\u0131\u015flar\u0131n\u0131 ayr\u0131 s\u00fctunlarda g\u00f6steren bir tabloda,  t\u00fcm sat\u0131\u015f verilerini tek bir sat\u0131rda g\u00f6stermek i\u00e7in unpivot i\u015flemini kullanabiliriz. Bu, verileri farkl\u0131 \u015fekillerde analiz etmemize olanak tan\u0131r. <\/p>\n<pre><code class=\"language-sql\">\n-- \u00d6rnek Unpivot sorgusu (SQL Server i\u00e7in)\nSELECT\n    ProductName,\n    SalesMonth,\n    SalesAmount\nFROM\n    SalesTable\nUNPIVOT\n(\n    SalesAmount FOR SalesMonth IN (Ocak, \u015eubat, Mart)\n) AS UnpivotedSales;\n<\/code><\/pre>\n<p>Bu sorgu,  <code>SalesTable<\/code> tablosundaki Ocak, \u015eubat ve Mart aylar\u0131na ait sat\u0131\u015f verilerini,  tek bir <code>SalesAmount<\/code> s\u00fctununda birle\u015ftirir ve ay bilgilerini <code>SalesMonth<\/code> s\u00fctununa ta\u015f\u0131r.  Farkl\u0131 veritaban\u0131 sistemlerinde unpivot i\u015flemi farkl\u0131 syntax&#8217;ler ile ger\u00e7ekle\u015ftirilebilir.  \u00d6rne\u011fin,  PostgreSQL&#8217;de bu i\u015flev i\u00e7in <code>UNNEST<\/code> fonksiyonu kullan\u0131labilir. Daha fazla bilgi i\u00e7in  <a href=\"https:\/\/dev.to\/anwaar\/sql-patterns-pivot-and-unpivot-in-sql-transforming-data-effectively-25k4\" target=\"_blank\">bu makaleye<\/a> bakabilirsiniz.<\/p>\n<h2>Pivot ve Unpivot \u0130\u015flemlerinin Avantajlar\u0131<\/h2>\n<p>Pivot ve unpivot i\u015flemlerinin kullan\u0131m\u0131 verilerinizi daha anlaml\u0131 hale getirir.  \u00d6rne\u011fin,  pivot kullanarak,  bir bak\u0131\u015fta ayl\u0131k veya y\u0131ll\u0131k performans trendlerini g\u00f6rebilirsiniz.  Unpivot ise,  farkl\u0131 verileri birle\u015ftirerek daha kapsaml\u0131 analizler yapman\u0131za olanak tan\u0131r.  Sonu\u00e7 olarak,  verilerinizi daha etkili bir \u015fekilde y\u00f6netmenize yard\u0131mc\u0131 olur.<\/p>\n<p>Umar\u0131m bu makale,  SQL&#8217;de pivot ve unpivot i\u015flemlerini anlaman\u0131za yard\u0131mc\u0131 olmu\u015ftur.  Her iki i\u015flem de,  verilerinizi d\u00f6n\u00fc\u015ft\u00fcrmek ve analiz etmek i\u00e7in g\u00fc\u00e7l\u00fc ara\u00e7lard\u0131r.  Uygulamal\u0131 olarak denemek ve farkl\u0131 senaryolarda nas\u0131l kullan\u0131labilece\u011fini ke\u015ffetmek \u00f6nemlidir.  Sorular\u0131n\u0131z varsa,  l\u00fctfen yorumlarda belirtmekten \u00e7ekinmeyin.<\/p>\n<p><strong>Fatih Soysal<\/strong><\/p>\n<p>#Etiketler: SQL, Pivot, Unpivot, Veri D\u00f6n\u00fc\u015f\u00fcm\u00fc, Veritaban\u0131, SQL \u00d6rnekleri, SQL E\u011fitimi, Veri Analizi, SQL \u0130pu\u00e7lar\u0131,  SQL Sorgu \u00d6rnekleri,  Veri Taban\u0131 Y\u00f6netimi<\/p>\n<p><\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"SQL Pivot ve Unpivot: Veri D\u00f6n\u00fc\u015f\u00fcmlerini Etkili Bir \u015eekilde Ger\u00e7ekle\u015ftirme Merhaba! Fatih Soysal olarak, SQL d\u00fcnyas\u0131n\u0131n g\u00fc\u00e7l\u00fc veri&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-12807","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>SQL Pivot ve Unpivot: Veri D\u00f6n\u00fc\u015f\u00fcmlerini Etkili Bir \u015eekilde Ger\u00e7ekle\u015ftirme<\/title>\n<meta name=\"description\" content=\"Merhaba! Fatih Soysal olarak, SQL d\u00fcnyas\u0131n\u0131n g\u00fc\u00e7l\u00fc veri d\u00f6n\u00fc\u015f\u00fcm ara\u00e7lar\u0131ndan olan Pivot ve Unpivot i\u015flemlerini ele alaca\u011f\u0131z. Bu i\u015flemler, verilerinizi farkl\u0131 bi\u00e7imlerde sunarak analizlerinizi kolayla\u015ft\u0131r\u0131r ve raporlamalar\u0131n\u0131z\u0131 zenginle\u015ftirir. \u00d6ncelikle, bu iki i\u015flemin ne oldu\u011funu ve nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Ard\u0131ndan, pratik \u00f6rneklerle kavramlar\u0131 daha iyi anlaman\u0131z\u0131 sa\u011flayaca\u011f\u0131m. Umar\u0131m bu makale, SQL becerilerinizi geli\u015ftirmenize yard\u0131mc\u0131 olur.\" \/>\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\/sql-pivot-ve-unpivot-veri-donusumlerini-etkili-bir-sekilde-gerceklestirme\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQL Pivot ve Unpivot: Veri D\u00f6n\u00fc\u015f\u00fcmlerini Etkili Bir \u015eekilde Ger\u00e7ekle\u015ftirme\" \/>\n<meta property=\"og:description\" content=\"Merhaba! Fatih Soysal olarak, SQL d\u00fcnyas\u0131n\u0131n g\u00fc\u00e7l\u00fc veri d\u00f6n\u00fc\u015f\u00fcm ara\u00e7lar\u0131ndan olan Pivot ve Unpivot i\u015flemlerini ele alaca\u011f\u0131z. Bu i\u015flemler, verilerinizi farkl\u0131 bi\u00e7imlerde sunarak analizlerinizi kolayla\u015ft\u0131r\u0131r ve raporlamalar\u0131n\u0131z\u0131 zenginle\u015ftirir. \u00d6ncelikle, bu iki i\u015flemin ne oldu\u011funu ve nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Ard\u0131ndan, pratik \u00f6rneklerle kavramlar\u0131 daha iyi anlaman\u0131z\u0131 sa\u011flayaca\u011f\u0131m. 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Fatih Soysal olarak, SQL d\u00fcnyas\u0131n\u0131n g\u00fc\u00e7l\u00fc veri d\u00f6n\u00fc\u015f\u00fcm ara\u00e7lar\u0131ndan olan Pivot ve Unpivot i\u015flemlerini ele alaca\u011f\u0131z. Bu i\u015flemler, verilerinizi farkl\u0131 bi\u00e7imlerde sunarak analizlerinizi kolayla\u015ft\u0131r\u0131r ve raporlamalar\u0131n\u0131z\u0131 zenginle\u015ftirir. \u00d6ncelikle, bu iki i\u015flemin ne oldu\u011funu ve nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Ard\u0131ndan, pratik \u00f6rneklerle kavramlar\u0131 daha iyi anlaman\u0131z\u0131 sa\u011flayaca\u011f\u0131m. 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Fatih Soysal olarak, SQL d\u00fcnyas\u0131n\u0131n g\u00fc\u00e7l\u00fc veri d\u00f6n\u00fc\u015f\u00fcm ara\u00e7lar\u0131ndan olan Pivot ve Unpivot i\u015flemlerini ele alaca\u011f\u0131z. Bu i\u015flemler, verilerinizi farkl\u0131 bi\u00e7imlerde sunarak analizlerinizi kolayla\u015ft\u0131r\u0131r ve raporlamalar\u0131n\u0131z\u0131 zenginle\u015ftirir. \u00d6ncelikle, bu iki i\u015flemin ne oldu\u011funu ve nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Ard\u0131ndan, pratik \u00f6rneklerle kavramlar\u0131 daha iyi anlaman\u0131z\u0131 sa\u011flayaca\u011f\u0131m. Umar\u0131m bu makale, SQL becerilerinizi geli\u015ftirmenize yard\u0131mc\u0131 olur.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/fatihsoysal.com\/blog\/sql-pivot-ve-unpivot-veri-donusumlerini-etkili-bir-sekilde-gerceklestirme\/","og_locale":"tr_TR","og_type":"article","og_title":"SQL Pivot ve Unpivot: Veri D\u00f6n\u00fc\u015f\u00fcmlerini Etkili Bir \u015eekilde Ger\u00e7ekle\u015ftirme","og_description":"Merhaba! Fatih Soysal olarak, SQL d\u00fcnyas\u0131n\u0131n g\u00fc\u00e7l\u00fc veri d\u00f6n\u00fc\u015f\u00fcm ara\u00e7lar\u0131ndan olan Pivot ve Unpivot i\u015flemlerini ele alaca\u011f\u0131z. Bu i\u015flemler, verilerinizi farkl\u0131 bi\u00e7imlerde sunarak analizlerinizi kolayla\u015ft\u0131r\u0131r ve raporlamalar\u0131n\u0131z\u0131 zenginle\u015ftirir. \u00d6ncelikle, bu iki i\u015flemin ne oldu\u011funu ve nas\u0131l kullan\u0131ld\u0131\u011f\u0131n\u0131 a\u00e7\u0131klayaca\u011f\u0131m. Ard\u0131ndan, pratik \u00f6rneklerle kavramlar\u0131 daha iyi anlaman\u0131z\u0131 sa\u011flayaca\u011f\u0131m. 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