{"id":25587,"date":"2025-07-09T03:15:24","date_gmt":"2025-07-09T00:15:24","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/"},"modified":"2025-07-09T03:15:24","modified_gmt":"2025-07-09T00:15:24","slug":"postgresql-hesaplanmis-sutuna-gore-siralama","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/","title":{"rendered":"PostgreSQL: Hesaplanm\u0131\u015f S\u00fctuna G\u00f6re S\u0131ralama"},"content":{"rendered":"<p># PostgreSQL&#8217;de Hesaplanm\u0131\u015f S\u00fctuna G\u00f6re S\u0131ralama Nas\u0131l Yap\u0131l\u0131r?<\/p>\n<p>PostgreSQL veritaban\u0131n\u0131zda karma\u015f\u0131k sorgular yazarken, verileri belirli bir kritere g\u00f6re s\u0131ralamak s\u0131kl\u0131kla ihtiya\u00e7 duydu\u011funuz bir i\u015flemdir.  Ancak, bazen s\u0131ralama kriteriniz mevcut s\u00fctunlardan do\u011frudan elde edilemeyip, hesaplama gerektiren bir ifadeye dayanabilir. \u0130\u015fte tam bu noktada, hesaplanm\u0131\u015f s\u00fctunlara g\u00f6re s\u0131ralama becerisi devreye girer. Bu makalede, PostgreSQL&#8217;de hesaplanm\u0131\u015f s\u00fctunlara g\u00f6re s\u0131ralama i\u015flemini ad\u0131m ad\u0131m, ba\u015flang\u0131\u00e7 seviyesinden ileri seviyeye kadar detayl\u0131 bir \u015fekilde ele alaca\u011f\u0131z.  Ger\u00e7ek d\u00fcnya senaryolar\u0131 ve performans optimizasyonu teknikleri ile zenginle\u015ftirilmi\u015f bu rehber, PostgreSQL yeteneklerinizi bir \u00fcst seviyeye ta\u015f\u0131man\u0131za yard\u0131mc\u0131 olacakt\u0131r.<\/p>\n<p><strong>PostgreSQL&#8217;de Temel S\u0131ralama \u0130\u015flemleri: <code class=\"language-\">ORDER BY<\/code> Kullan\u0131m\u0131<\/strong><\/p>\n<p>\u00d6ncelikle, PostgreSQL&#8217;de temel s\u0131ralama i\u015flemlerini hat\u0131rlayal\u0131m. <code class=\"language-\">ORDER BY<\/code> deyimi, sorgu sonucunu belirli bir veya birden fazla s\u00fctuna g\u00f6re s\u0131ralaman\u0131z\u0131 sa\u011flar.  \u00d6rne\u011fin, bir <code class=\"language-\">urunler<\/code> tablosunda \u00fcr\u00fcn isimlerine g\u00f6re s\u0131ralama yapmak i\u00e7in a\u015fa\u011f\u0131daki sorguyu kullanabiliriz:<\/p>\n<pre class=\"language-sql\"><code>SELECT * FROM urunler ORDER BY urun_adi;<\/code><\/pre>\n<p>Bu sorgu, <code class=\"language-\">urun_adi<\/code> s\u00fctununa g\u00f6re alfabetik olarak s\u0131ralanm\u0131\u015f t\u00fcm \u00fcr\u00fcn bilgilerini getirir.  <code class=\"language-\">ASC<\/code> (artan) s\u0131ralamas\u0131 varsay\u0131lan olarak kullan\u0131l\u0131r. Tersine s\u0131ralamak i\u00e7in <code class=\"language-\">DESC<\/code> (azalan) kullanabiliriz:<\/p>\n<pre class=\"language-sql\"><code>SELECT * FROM urunler ORDER BY urun_adi DESC;<\/code><\/pre>\n<p><strong>Hesaplanm\u0131\u015f S\u00fctunlar ile S\u0131ralama: Yeni Ba\u015flayanlar \u0130\u00e7in Ad\u0131m Ad\u0131m Rehber<\/strong><\/p>\n<p>\u015eimdi, as\u0131l konumuz olan hesaplanm\u0131\u015f s\u00fctunlara g\u00f6re s\u0131ralamaya ge\u00e7elim.  Hesaplanm\u0131\u015f s\u00fctun, sorgu i\u00e7inde do\u011frudan hesaplanan bir ifadedir.  <code class=\"language-\">ORDER BY<\/code> deyimi i\u00e7inde bu hesaplanm\u0131\u015f s\u00fctunu kullanarak verileri istedi\u011finiz gibi s\u0131ralayabilirsiniz.<\/p>\n<p><strong>\u00d6rnek:<\/strong>  <code class=\"language-\">urunler<\/code> tablomuzda <code class=\"language-\">fiyat<\/code> ve <code class=\"language-\">stok_adedi<\/code> s\u00fctunlar\u0131 olsun.  Toplam de\u011feri (<code class=\"language-\">fiyat * stok_adedi<\/code>) hesaplayarak bu de\u011fere g\u00f6re s\u0131ralamak isteyelim:<\/p>\n<pre class=\"language-sql\"><code>SELECT urun_adi, fiyat, stok_adedi, (fiyat * stok_adedi) AS toplam_deger\nFROM urunler\nORDER BY toplam_deger DESC;<\/code><\/pre>\n<p>Bu sorgu, her \u00fcr\u00fcn i\u00e7in <code class=\"language-\">toplam_deger<\/code> adl\u0131 bir hesaplanm\u0131\u015f s\u00fctun olu\u015fturur ve bu s\u00fctuna g\u00f6re azalan s\u0131rada sonu\u00e7lar\u0131 getirir.  <code class=\"language-\">AS<\/code> anahtar kelimesi ile hesaplanm\u0131\u015f s\u00fctuna bir isim verdik.  Bu isim, <code class=\"language-\">ORDER BY<\/code> deyiminde kullan\u0131labilir.<\/p>\n<p><strong>Hesaplanm\u0131\u015f S\u00fctunlara G\u00f6re S\u0131ralama: Ger\u00e7ek Hayat \u00d6rne\u011fi ve Optimizasyon \u0130pu\u00e7lar\u0131<\/strong><\/p>\n<p>Bir e-ticaret platformu d\u00fc\u015f\u00fcn\u00fcn.  \u00dcr\u00fcnlerin sat\u0131\u015f tarihine g\u00f6re de\u011fil de, sat\u0131\u015f tarihine ve \u00fcr\u00fcn fiyat\u0131na g\u00f6re karma\u015f\u0131k bir s\u0131ralama yapman\u0131z gerekebilir.  \u00d6rne\u011fin, daha yeni sat\u0131lan pahal\u0131 \u00fcr\u00fcnlerin \u00f6nce g\u00f6r\u00fcnmesini isteyebilirsiniz.<\/p>\n<p><strong>\u00d6rnek:<\/strong>  <code class=\"language-\">satislar<\/code> tablomuzda <code class=\"language-\">satis_tarihi<\/code> ve <code class=\"language-\">urun_fiyati<\/code> s\u00fctunlar\u0131 olsun.  \u00dcr\u00fcnleri \u00f6nce sat\u0131\u015f tarihine g\u00f6re azalan, daha sonra da fiyat\u0131na g\u00f6re azalan \u015fekilde s\u0131ralayal\u0131m:<\/p>\n<pre class=\"language-sql\"><code>SELECT * FROM satislar ORDER BY satis_tarihi DESC, urun_fiyati DESC;<\/code><\/pre>\n<p>Bu \u00f6rnekte, \u00f6nce <code class=\"language-\">satis_tarihi<\/code> s\u00fctununa g\u00f6re azalan s\u0131rada s\u0131ralama yap\u0131l\u0131yor.  E\u011fer ayn\u0131 tarihte birden fazla sat\u0131\u015f varsa, o zaman <code class=\"language-\">urun_fiyati<\/code> s\u00fctununa g\u00f6re azalan s\u0131rada s\u0131ralama devreye giriyor.  Bu, verileri daha anlaml\u0131 bir \u015fekilde s\u0131ralamam\u0131z\u0131 sa\u011flar.<\/p>\n<p><strong>Optimizasyon \u0130pu\u00e7lar\u0131:<\/strong><\/p>\n<p>* <strong>\u0130ndeksler:<\/strong>  Hesaplanm\u0131\u015f s\u00fctunlarda kullan\u0131lan s\u00fctunlar \u00fczerine indeks olu\u015fturmak sorgu performans\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rabilir.<br \/>\n* <strong>Fonksiyonlar:<\/strong>  Karma\u015f\u0131k hesaplamalar gerektiren durumlarda, performans\u0131 iyile\u015ftirmek i\u00e7in \u00f6zel SQL fonksiyonlar\u0131 tan\u0131mlayabilirsiniz.  Bu fonksiyonlar\u0131 <code class=\"language-\">ORDER BY<\/code> deyiminde kullanabilirsiniz.<br \/>\n* <strong>Sadele\u015ftirme:<\/strong>  Hesaplama ifadelerini gereksiz yere karma\u015f\u0131kla\u015ft\u0131rmaktan ka\u00e7\u0131n\u0131n.  Daha basit ifadeler kullanarak performans\u0131 art\u0131rabilirsiniz.<\/p>\n<p><strong>PostgreSQL&#8217;de Hesaplanm\u0131\u015f S\u00fctunlara G\u00f6re S\u0131ralama: \u0130leri D\u00fczey Teknikler ve Performans Analizi<\/strong><\/p>\n<p>Daha karma\u015f\u0131k senaryolarda, hesaplanm\u0131\u015f s\u00fctunlar i\u00e7inde ko\u015fullu ifadeler, alt sorgular veya pencere fonksiyonlar\u0131 kullanabilirsiniz.  Bu durumlar, sorgu performans\u0131n\u0131 etkileyebilir.<\/p>\n<p><strong>\u00d6rnek (Ko\u015fullu \u0130fade):<\/strong>  <code class=\"language-\">urunler<\/code> tablomuzda <code class=\"language-\">kategori<\/code> s\u00fctunu olsun.  Belirli bir kategoriye ait \u00fcr\u00fcnleri \u00f6nce s\u0131ralayal\u0131m:<\/p>\n<pre class=\"language-sql\"><code>SELECT * FROM urunler\nORDER BY CASE WHEN kategori = 'Elektronik' THEN 0 ELSE 1 END, urun_adi;<\/code><\/pre>\n<p>Bu sorgu, &#8216;Elektronik&#8217; kategorisine ait \u00fcr\u00fcnleri \u00f6nce, di\u011ferlerini sonra s\u0131ralar.  <code class=\"language-\">CASE<\/code> ifadesi, ko\u015fullu olarak bir de\u011fer d\u00f6nd\u00fcrerek s\u0131ralama kriterini olu\u015fturur.<\/p>\n<p><strong>Performans Analizi:<\/strong><\/p>\n<p>Karma\u015f\u0131k hesaplanm\u0131\u015f s\u00fctunlar kullan\u0131rken, sorgu planlay\u0131c\u0131s\u0131n\u0131n nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 anlamak \u00f6nemlidir.  <code class=\"language-\">EXPLAIN<\/code> komutu ile sorgu plan\u0131n\u0131 inceleyerek, performans darbo\u011fazlar\u0131n\u0131 tespit edebilir ve optimizasyon yapabilirsiniz.  \u00d6rne\u011fin:<\/p>\n<pre class=\"language-sql\"><code>EXPLAIN SELECT * FROM urunler ORDER BY (fiyat * stok_adedi) DESC;<\/code><\/pre>\n<p>Bu komut, sorgu plan\u0131n\u0131 g\u00f6sterir ve indeks kullan\u0131m\u0131n\u0131, tablo taramalar\u0131n\u0131 ve di\u011fer performans metriklerini analiz etmenizi sa\u011flar.  <code class=\"language-\">fatihsoysal.com<\/code> gibi kaynaklardan detayl\u0131 PostgreSQL performans optimizasyonu hakk\u0131nda daha fazla bilgi edinebilirsiniz.<\/p>\n<p><strong>PostgreSQL&#8217;de Hesaplanm\u0131\u015f S\u00fctunlara G\u00f6re S\u0131ralamada Edge Case&#8217;ler ve \u00c7\u00f6z\u00fcmleri<\/strong><\/p>\n<p>Hesaplanm\u0131\u015f s\u00fctunlarla s\u0131ralama yaparken dikkat edilmesi gereken baz\u0131 \u00f6zel durumlar (edge case&#8217;ler) vard\u0131r:<\/p>\n<p>* <strong>NULL De\u011ferler:<\/strong>  Hesaplanm\u0131\u015f s\u00fctun NULL de\u011ferler i\u00e7erebilir.  <code class=\"language-\">NULL<\/code> de\u011ferlerinin nas\u0131l s\u0131ralanaca\u011f\u0131n\u0131 kontrol etmek i\u00e7in <code class=\"language-\">NULLS FIRST<\/code> veya <code class=\"language-\">NULLS LAST<\/code>  kullanabilirsiniz.<br \/>\n* <strong>Veri Tipi Uyumlulu\u011fu:<\/strong>  Hesaplanm\u0131\u015f s\u00fctunlarda kullan\u0131lan ifadelerin veri tiplerinin uyumlu oldu\u011fundan emin olun.  Uyumluluk sorunlar\u0131, beklenmedik sonu\u00e7lara yol a\u00e7abilir.<br \/>\n* <strong>Fonksiyon Yan Etkileri:<\/strong>  <code class=\"language-\">ORDER BY<\/code> deyimi i\u00e7inde kullan\u0131lan fonksiyonlar\u0131n yan etki i\u00e7ermedi\u011finden emin olun.  Yan etkiler, beklenmedik sonu\u00e7lar veya hatalara neden olabilir.<\/p>\n<p><strong>\u00d6\u011frenme Yol Haritas\u0131<\/strong><\/p>\n<p><strong>Yeni Ba\u015flayan:<\/strong><\/p>\n<p>* Ad\u0131m ad\u0131m a\u00e7\u0131klama: Yukar\u0131da verilen temel <code class=\"language-\">ORDER BY<\/code> ve basit hesaplanm\u0131\u015f s\u00fctun \u00f6rneklerini inceleyin.<br \/>\n* Basit kod \u00f6rne\u011fi:  <code class=\"language-\">urunler<\/code> tablosunda <code class=\"language-\">fiyat<\/code> s\u00fctununa g\u00f6re s\u0131ralama yap\u0131n.<\/p>\n<p><strong>Orta Seviye:<\/strong><\/p>\n<p>* Ger\u00e7ek hayat \u00f6rne\u011fi: E-ticaret platformu sat\u0131\u015f \u00f6rne\u011fini inceleyin ve farkl\u0131 s\u0131ralama kriterleri deneyin.<br \/>\n* Optimizasyon ipu\u00e7lar\u0131: \u0130ndeksleme ve fonksiyon kullan\u0131m\u0131n\u0131n performans \u00fczerindeki etkisini ara\u015ft\u0131r\u0131n.<\/p>\n<p><strong>\u0130leri Seviye:<\/strong><\/p>\n<p>* Performans analizi: <code class=\"language-\">EXPLAIN<\/code> komutunu kullanarak sorgu planlar\u0131n\u0131 analiz edin ve optimizasyon yap\u0131n.<br \/>\n* Edge case&#8217;ler: <code class=\"language-\">NULL<\/code> de\u011ferleri, veri tipi uyumlulu\u011fu ve fonksiyon yan etkileri gibi konular\u0131 ara\u015ft\u0131r\u0131n.<\/p>\n<p><strong>Sonu\u00e7<\/strong><\/p>\n<p>PostgreSQL&#8217;de hesaplanm\u0131\u015f s\u00fctunlara g\u00f6re s\u0131ralama, verileri istedi\u011finiz gibi d\u00fczenlemenizi sa\u011flayan g\u00fc\u00e7l\u00fc bir \u00f6zelliktir.  Bu makalede, bu i\u015flemi ad\u0131m ad\u0131m a\u00e7\u0131klad\u0131k, ger\u00e7ek d\u00fcnya \u00f6rnekleri verdik ve performans optimizasyonu tekniklerini payla\u015ft\u0131k.  Ancak, karma\u015f\u0131k sorgular yazarken dikkatli olmak ve sorgu planlar\u0131n\u0131 analiz etmek \u00f6nemlidir.  <code class=\"language-\">fatihsoysal.com<\/code> adresinden daha fazla PostgreSQL e\u011fitimine ula\u015fabilirsiniz.<\/p>\n<p><strong>S\u0131k\u00e7a Sorulan Sorular:<\/strong><\/p>\n<p>1. <strong>Hesaplanm\u0131\u015f s\u00fctunlara indeks ekleyebilir miyim?<\/strong> Hay\u0131r, do\u011frudan hesaplanm\u0131\u015f s\u00fctunlara indeks ekleyemezsiniz. Ancak, hesaplanm\u0131\u015f s\u00fctunda kullan\u0131lan s\u00fctunlara indeks ekleyerek performans\u0131 art\u0131rabilirsiniz.<\/p>\n<p>2. <strong>\u00c7ok karma\u015f\u0131k hesaplamalar i\u00e7in ne yapmal\u0131y\u0131m?<\/strong> \u00c7ok karma\u015f\u0131k hesaplamalar i\u00e7in \u00f6zel SQL fonksiyonlar\u0131 tan\u0131mlaman\u0131z ve bu fonksiyonlar\u0131 <code class=\"language-\">ORDER BY<\/code> deyiminde kullanman\u0131z \u00f6nerilir.<\/p>\n<p>3. <strong><code class=\"language-\">ORDER BY<\/code> deyiminde birden fazla s\u00fctun nas\u0131l kullan\u0131l\u0131r?<\/strong> Birden fazla s\u00fctun kullanarak \u00f6ncelik s\u0131ralamas\u0131 olu\u015fturabilirsiniz. \u0130lk s\u00fctuna g\u00f6re s\u0131ralama yap\u0131l\u0131r, e\u015fitlik durumunda ikinci s\u00fctun kullan\u0131l\u0131r, vs.<\/p>\n<p>4. <strong><code class=\"language-\">NULL<\/code> de\u011ferlerini nas\u0131l y\u00f6netirim?<\/strong> <code class=\"language-\">NULLS FIRST<\/code> veya <code class=\"language-\">NULLS LAST<\/code> anahtar kelimelerini kullanarak <code class=\"language-\">NULL<\/code> de\u011ferlerinin s\u0131ralama i\u00e7indeki yerini belirleyebilirsiniz.<\/p>\n<p>5. <strong>Hesaplanm\u0131\u015f s\u00fctun performans\u0131m\u0131 nas\u0131l etkiler?<\/strong> Karma\u015f\u0131k hesaplamalar performans\u0131 olumsuz etkileyebilir. \u0130ndeksleme ve fonksiyon kullan\u0131m\u0131 ile performans\u0131 iyile\u015ftirebilirsiniz.<\/p>\n<p>Yazar: Fatih Soysal<\/p>\n","protected":false},"excerpt":{"rendered":"# PostgreSQL&#8217;de Hesaplanm\u0131\u015f S\u00fctuna G\u00f6re S\u0131ralama Nas\u0131l Yap\u0131l\u0131r? PostgreSQL veritaban\u0131n\u0131zda karma\u015f\u0131k sorgular yazarken, verileri belirli bir kritere g\u00f6re&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":[644],"tags":[],"class_list":{"0":"post-25587","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-postgresql","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>PostgreSQL: Hesaplanm\u0131\u015f S\u00fctuna G\u00f6re S\u0131ralama<\/title>\n<meta name=\"description\" content=\"Hi\u00e7bir etiketi bulunamad\u0131.\" \/>\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\/postgresql-hesaplanmis-sutuna-gore-siralama\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PostgreSQL: Hesaplanm\u0131\u015f S\u00fctuna G\u00f6re S\u0131ralama\" \/>\n<meta property=\"og:description\" content=\"Hi\u00e7bir etiketi bulunamad\u0131.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-09T00:15:24+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=\"6 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"PostgreSQL: Hesaplanm\u0131\u015f S\u00fctuna G\u00f6re S\u0131ralama\",\"datePublished\":\"2025-07-09T00:15:24+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/\"},\"wordCount\":1119,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"articleSection\":[\"PostgreSQL\"],\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/\",\"name\":\"PostgreSQL: Hesaplanm\u0131\u015f S\u00fctuna G\u00f6re S\u0131ralama\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-07-09T00:15:24+00:00\",\"description\":\"Hi\u00e7bir etiketi bulunamad\u0131.\",\"breadcrumb\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-hesaplanmis-sutuna-gore-siralama\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Anasayfa\",\"item\":\"https:\/\/fatihsoysal.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"PostgreSQL: Hesaplanm\u0131\u015f S\u00fctuna G\u00f6re S\u0131ralama\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/\",\"name\":\"Fatihsoysal.com\",\"description\":\"Blog - 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