{"id":26578,"date":"2025-07-27T12:15:26","date_gmt":"2025-07-27T09:15:26","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/"},"modified":"2025-07-27T12:15:26","modified_gmt":"2025-07-27T09:15:26","slug":"postgresql-araliklara-gore-deger-sayimi","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/","title":{"rendered":"PostgreSQL: Aral\u0131klara G\u00f6re De\u011fer Say\u0131m\u0131"},"content":{"rendered":"<p># PostgreSQL&#8217;de Aral\u0131klara G\u00f6re De\u011fer Say\u0131m\u0131 Nas\u0131l Yap\u0131l\u0131r?<\/p>\n<p>PostgreSQL veritaban\u0131n\u0131zda b\u00fcy\u00fck miktarda veri var ve bu verileri belirli aral\u0131klara g\u00f6re gruplayarak saymak m\u0131 istiyorsunuz? \u00d6rne\u011fin, m\u00fc\u015fterilerinizin ya\u015f da\u011f\u0131l\u0131m\u0131n\u0131, sat\u0131\u015flar\u0131n\u0131z\u0131 fiyat aral\u0131klar\u0131na g\u00f6re veya \u00fcr\u00fcnlerinizi stok seviyelerine g\u00f6re analiz etmek mi gerekiyor?  Bu makalede, PostgreSQL kullanarak verilerinizi farkl\u0131 aral\u0131klara g\u00f6re nas\u0131l sayaca\u011f\u0131n\u0131z\u0131 ad\u0131m ad\u0131m \u00f6\u011freneceksiniz.  Veri analizi s\u00fcre\u00e7lerinizi h\u0131zland\u0131racak ve daha anlaml\u0131 sonu\u00e7lar elde etmenizi sa\u011flayacak \u00e7e\u015fitli teknikleri, ger\u00e7ek d\u00fcnya \u00f6rnekleriyle ve performans optimizasyon ipu\u00e7lar\u0131yla birlikte ele alaca\u011f\u0131z.<\/p>\n<p><strong>\u00d6\u011frenme Yol Haritas\u0131<\/strong><\/p>\n<p>Bu makale, PostgreSQL&#8217;de aral\u0131k bazl\u0131 de\u011fer say\u0131m\u0131n\u0131 \u00f6\u011frenmek i\u00e7in \u00fc\u00e7 seviyeli bir yol haritas\u0131 sunar:<\/p>\n<p><strong>Yeni Ba\u015flayan:<\/strong>  Temel <code class=\"language-\">CASE<\/code> ifadeleri ve <code class=\"language-\">GROUP BY<\/code> kullan\u0131m\u0131 ile aral\u0131klar olu\u015fturmay\u0131 ve say\u0131m\u0131 ger\u00e7ekle\u015ftirmeyi \u00f6\u011freneceksiniz. Basit bir \u00f6rnek \u00fczerinden ad\u0131m ad\u0131m ilerleyece\u011fiz.<\/p>\n<p><strong>Orta Seviye:<\/strong> Ger\u00e7ek d\u00fcnya senaryolar\u0131na ve daha karma\u015f\u0131k aral\u0131k tan\u0131mlamalar\u0131na odaklanaca\u011f\u0131z.  <code class=\"language-\">generate_series<\/code> fonksiyonu ve performans optimizasyonu tekniklerini ele alaca\u011f\u0131z.<\/p>\n<p><strong>\u0130leri Seviye:<\/strong>  Performans analizi yapmay\u0131,  <code class=\"language-\">EXPLAIN ANALYZE<\/code> komutunu kullanmay\u0131 ve edge case&#8217;leri (k\u00f6\u015fe durumlar\u0131n\u0131) ele almay\u0131 \u00f6\u011freneceksiniz.  Karma\u015f\u0131k sorgular\u0131n optimizasyonunu ve b\u00fcy\u00fck veri k\u00fcmeleri \u00fczerindeki performans\u0131n\u0131 art\u0131rma y\u00f6ntemlerini inceleyece\u011fiz.<\/p>\n<p><strong>PostgreSQL&#8217;de Aral\u0131klara G\u00f6re Say\u0131m: Temel Kavramlar<\/strong><\/p>\n<p>PostgreSQL&#8217;de aral\u0131k bazl\u0131 de\u011fer say\u0131m\u0131, verilerinizi belirli gruplara ay\u0131r\u0131p her gruptaki de\u011fer say\u0131s\u0131n\u0131 hesaplamay\u0131 i\u00e7erir.  Bu, <code class=\"language-\">CASE<\/code> ifadesi, <code class=\"language-\">GROUP BY<\/code> klauzu ve toplama fonksiyonlar\u0131 (<code class=\"language-\">COUNT()<\/code>) kullan\u0131larak ger\u00e7ekle\u015ftirilir.  <code class=\"language-\">CASE<\/code> ifadesi, verilerinizi farkl\u0131 aral\u0131klara ataman\u0131za olanak tan\u0131r. <code class=\"language-\">GROUP BY<\/code> klauzu, verileri bu aral\u0131klara g\u00f6re gruplar ve <code class=\"language-\">COUNT()<\/code> fonksiyonu her gruptaki sat\u0131r say\u0131s\u0131n\u0131 sayar.<\/p>\n<p>\u00d6rne\u011fin, m\u00fc\u015fteri ya\u015flar\u0131n\u0131 18-25, 26-35, 36-45, 46-55 ve 55+ aral\u0131klar\u0131na ay\u0131rmak istedi\u011fimizi d\u00fc\u015f\u00fcnelim.  Bu, bir <code class=\"language-\">CASE<\/code> ifadesi ile kolayca yap\u0131labilir.<\/p>\n<p><strong>PostgreSQL&#8217;de Aral\u0131klara G\u00f6re Say\u0131m: Ad\u0131m Ad\u0131m Uygulamal\u0131 K\u0131lavuz (Yeni Ba\u015flayan)<\/strong><\/p>\n<p>\u00d6ncelikle basit bir \u00f6rnek \u00fczerinden ilerleyelim.  Bir &#8220;urunler&#8221; adl\u0131 tablomuz oldu\u011funu ve bu tablonun &#8220;fiyat&#8221; s\u00fctununu i\u00e7erdi\u011fini varsayal\u0131m.  Fiyatlar\u0131 0-100, 101-200 ve 200+&#8217;l\u0131k aral\u0131klara g\u00f6re sayal\u0131m:<\/p>\n<pre class=\"language-sql\"><code>SELECT\n  CASE\n    WHEN fiyat BETWEEN 0 AND 100 THEN '0-100'\n    WHEN fiyat BETWEEN 101 AND 200 THEN '101-200'\n    ELSE '200+'\n  END AS fiyat_araligi,\n  COUNT(*) AS urun_sayisi\nFROM\n  urunler\nGROUP BY\n  fiyat_araligi\nORDER BY\n  fiyat_araligi;<\/code><\/pre>\n<p>Bu sorgu, <code class=\"language-\">CASE<\/code> ifadesini kullanarak her \u00fcr\u00fcn\u00fcn fiyat\u0131n\u0131 ilgili aral\u0131\u011fa atar ve <code class=\"language-\">GROUP BY<\/code> klauzu ile bu aral\u0131klara g\u00f6re grupland\u0131r\u0131r.  <code class=\"language-\">COUNT(*)<\/code> fonksiyonu her aral\u0131ktaki \u00fcr\u00fcn say\u0131s\u0131n\u0131 hesaplar.  Sonu\u00e7 olarak, her fiyat aral\u0131\u011f\u0131 ve o aral\u0131ktaki \u00fcr\u00fcn say\u0131s\u0131n\u0131 i\u00e7eren bir tablo elde ederiz.<\/p>\n<p><strong>PostgreSQL&#8217;de Aral\u0131klara G\u00f6re Say\u0131m: Ger\u00e7ek D\u00fcnya \u00d6rne\u011fi ve Optimizasyon (Orta Seviye)<\/strong><\/p>\n<p>\u015eimdi, daha ger\u00e7ek\u00e7i bir senaryo ele alal\u0131m.  Bir e-ticaret sitesinin g\u00fcnl\u00fck sat\u0131\u015f verilerini i\u00e7eren bir tablomuz olsun.  Sat\u0131\u015flar\u0131 belirli fiyat aral\u0131klar\u0131na g\u00f6re gruplay\u0131p analiz etmek istiyoruz.<\/p>\n<pre class=\"language-sql\"><code>CREATE TABLE satislar (\n    satis_id SERIAL PRIMARY KEY,\n    satis_tarihi DATE,\n    satis_fiyati NUMERIC\n);\n\nINSERT INTO satislar (satis_tarihi, satis_fiyati) VALUES\n('2024-10-26', 50), ('2024-10-26', 120), ('2024-10-26', 250), ('2024-10-26', 80), ('2024-10-26', 300), ('2024-10-26', 180), ('2024-10-26', 5), ('2024-10-26', 1500);\n\n\nSELECT\n    CASE\n        WHEN satis_fiyati BETWEEN 0 AND 100 THEN '0-100'\n        WHEN satis_fiyati BETWEEN 101 AND 500 THEN '101-500'\n        WHEN satis_fiyati BETWEEN 501 AND 1000 THEN '501-1000'\n        ELSE '1000+'\n    END AS fiyat_araligi,\n    COUNT(*) AS satis_sayisi,\n    SUM(satis_fiyati) AS toplam_satis_tutari\nFROM\n    satislar\nWHERE satis_tarihi = '2024-10-26'\nGROUP BY\n    fiyat_araligi\nORDER BY\n    fiyat_araligi;<\/code><\/pre>\n<p>Bu sorgu, <code class=\"language-\">SUM()<\/code> fonksiyonunu da ekleyerek her aral\u0131ktaki toplam sat\u0131\u015f tutar\u0131n\u0131 da hesaplar.  B\u00fcy\u00fck veri k\u00fcmeleri i\u00e7in performans\u0131 art\u0131rmak i\u00e7in indeksleme ve uygun <code class=\"language-\">WHERE<\/code> ko\u015fullar\u0131 kullan\u0131lmas\u0131 \u00f6nemlidir.  \u00d6rne\u011fin, <code class=\"language-\">satis_tarihi<\/code> s\u00fctununa bir indeks eklemek sorgu performans\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde iyile\u015ftirebilir.<\/p>\n<p><strong>PostgreSQL&#8217;de Aral\u0131klara G\u00f6re Say\u0131m:  <code class=\"language-\">generate_series<\/code> Fonksiyonu ve Performans Optimizasyonu (Orta Seviye)<\/strong><\/p>\n<p>Daha d\u00fczenli aral\u0131klar olu\u015fturmak i\u00e7in <code class=\"language-\">generate_series<\/code> fonksiyonunu kullanabiliriz.  \u00d6rne\u011fin, 0&#8217;dan 1000&#8217;e kadar 100&#8217;l\u00fck aral\u0131klar olu\u015fturmak i\u00e7in:<\/p>\n<pre class=\"language-sql\"><code>SELECT\n  (i || '-' || (i + 99)) AS fiyat_araligi,\n  COUNT(satis_fiyati) AS satis_sayisi\nFROM\n  generate_series(0, 1000, 100) AS i, satislar\nWHERE satis_fiyati BETWEEN i AND (i + 99)\nGROUP BY\n  fiyat_araligi\nORDER BY\n  fiyat_araligi;<\/code><\/pre>\n<p>Bu y\u00f6ntem, \u00f6zellikle \u00e7ok say\u0131da aral\u0131k olu\u015fturman\u0131z gerekti\u011finde daha okunabilir ve daha kolay y\u00f6netilebilir bir \u00e7\u00f6z\u00fcm sunar.<\/p>\n<p><strong>PostgreSQL&#8217;de Aral\u0131klara G\u00f6re Say\u0131m: Performans Analizi ve Edge Case&#8217;ler (\u0130leri Seviye)<\/strong><\/p>\n<p>B\u00fcy\u00fck veri k\u00fcmeleriyle \u00e7al\u0131\u015f\u0131rken, sorgu performans\u0131 kritik \u00f6nem ta\u015f\u0131r.  <code class=\"language-\">EXPLAIN ANALYZE<\/code> komutu, sorgu plan\u0131n\u0131 ve y\u00fcr\u00fctme s\u00fcresini analiz etmemize yard\u0131mc\u0131 olur.  \u00d6rne\u011fin:<\/p>\n<pre class=\"language-sql\"><code>EXPLAIN ANALYZE\nSELECT ... -- Yukar\u0131daki sorgulardan birini buraya yap\u0131\u015ft\u0131r\u0131n<\/code><\/pre>\n<p>Bu komut, sorguyu optimize etmek i\u00e7in indeksleme gibi stratejiler geli\u015ftirmenize yard\u0131mc\u0131 olacak ayr\u0131nt\u0131l\u0131 bilgiler sa\u011flar.  Edge case&#8217;ler (k\u00f6\u015fe durumlar\u0131), \u00f6rne\u011fin s\u0131f\u0131r sat\u0131\u015fl\u0131 aral\u0131klar veya beklenmedik veri t\u00fcrleri gibi durumlar\u0131 ele almay\u0131 gerektirir.  Bu durumlar\u0131 \u00f6nceden belirleyip uygun hata y\u00f6netimi mekanizmalar\u0131 eklemek \u00f6nemlidir.<\/p>\n<p><strong>PostgreSQL&#8217;de Aral\u0131klara G\u00f6re Say\u0131m: Vaka Analizi<\/strong><\/p>\n<p>Bir \u00fcniversite \u00f6\u011frencilerinin ya\u015f da\u011f\u0131l\u0131m\u0131n\u0131 analiz etmek istedi\u011fini d\u00fc\u015f\u00fcnelim.  \u00d6\u011frenci ya\u015flar\u0131n\u0131 18-22, 23-27, 28-35 ve 35+ aral\u0131klar\u0131na g\u00f6re gruplayarak her aral\u0131ktaki \u00f6\u011frenci say\u0131s\u0131n\u0131 bulmak istiyoruz.  <code class=\"language-\">generate_series<\/code> kullanarak bu i\u015flemi daha verimli bir \u015fekilde yapabiliriz.<\/p>\n<pre class=\"language-sql\"><code>CREATE TABLE ogrenciler (\n    ogrenci_id SERIAL PRIMARY KEY,\n    yas INTEGER\n);\n\nINSERT INTO ogrenciler (yas) VALUES (19), (25), (21), (32), (18), (28), (38), (23), (27), (30);\n\nSELECT\n  (i || '-' || (i + 4)) AS yas_araligi,\n  COUNT(yas) AS ogrenci_sayisi\nFROM\n  generate_series(18, 35, 5) AS i, ogrenciler\nWHERE yas BETWEEN i AND (i + 4)\nGROUP BY\n  yas_araligi\nUNION ALL\nSELECT '35+', COUNT(*) FROM ogrenciler WHERE yas &gt; 35;<\/code><\/pre>\n<p>Bu sorgu,  <code class=\"language-\">generate_series<\/code> ile aral\u0131klar\u0131 olu\u015fturur ve <code class=\"language-\">UNION ALL<\/code> ile 35 ya\u015f \u00fcst\u00fc \u00f6\u011frencileri de ekler.  Bu, veri analizi i\u00e7in daha esnek ve temiz bir \u00e7\u00f6z\u00fcm sunar.<\/p>\n<p><strong>Sonu\u00e7<\/strong><\/p>\n<p>PostgreSQL&#8217;de aral\u0131k bazl\u0131 de\u011fer say\u0131m\u0131, verilerinizi anlaml\u0131 bir \u015fekilde analiz etmek i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r.  <code class=\"language-\">CASE<\/code> ifadeleri, <code class=\"language-\">GROUP BY<\/code> klauzu, <code class=\"language-\">COUNT()<\/code> fonksiyonu ve <code class=\"language-\">generate_series<\/code> fonksiyonu gibi ara\u00e7lar, farkl\u0131 karma\u015f\u0131kl\u0131k seviyelerindeki g\u00f6revleri ele alman\u0131za olanak tan\u0131r.  Performans optimizasyonu ve edge case&#8217;leri dikkate alarak, b\u00fcy\u00fck veri k\u00fcmeleri \u00fczerinde bile verimli ve do\u011fru sonu\u00e7lar elde edebilirsiniz.  Daha detayl\u0131 PostgreSQL bilgisi ve ipu\u00e7lar\u0131 i\u00e7in [fatihsoysal.com](https:\/\/fatihsoysal.com) adresini ziyaret edebilirsiniz.<\/p>\n<p><strong>S\u0131k\u00e7a Sorulan Sorular:<\/strong><\/p>\n<p>1. <strong>\u00c7ok b\u00fcy\u00fck veri k\u00fcmeleri i\u00e7in performans\u0131 nas\u0131l iyile\u015ftirebilirim?<\/strong> \u0130ndeksleme, <code class=\"language-\">WHERE<\/code> ko\u015fullar\u0131n\u0131 optimize etme ve <code class=\"language-\">EXPLAIN ANALYZE<\/code> kullanarak sorgu plan\u0131n\u0131 analiz etme gibi teknikleri kullanabilirsiniz.<\/p>\n<p>2. <strong>Aral\u0131klar\u0131 dinamik olarak nas\u0131l belirleyebilirim?<\/strong>  Bir tabloda aral\u0131klar\u0131n ba\u015flang\u0131\u00e7 ve biti\u015f de\u011ferlerini saklayarak ve bu tabloyu sorgu i\u00e7inde birle\u015ftirerek dinamik aral\u0131klar olu\u015fturabilirsiniz.<\/p>\n<p>3. <strong>Farkl\u0131 veri t\u00fcrleri i\u00e7in aral\u0131k bazl\u0131 say\u0131m nas\u0131l yap\u0131l\u0131r?<\/strong>  <code class=\"language-\">CASE<\/code> ifadesi ve uygun kar\u015f\u0131la\u015ft\u0131rma operat\u00f6rleri kullanarak farkl\u0131 veri t\u00fcrleri i\u00e7in aral\u0131klar olu\u015fturabilirsiniz.<\/p>\n<p>4. <strong>Bo\u015f aral\u0131klar\u0131 nas\u0131l ele alabilirim?<\/strong>  <code class=\"language-\">COALESCE<\/code> fonksiyonu gibi fonksiyonlar kullanarak bo\u015f aral\u0131klar\u0131 0 olarak veya ba\u015fka bir uygun de\u011ferle doldurabilirsiniz.<\/p>\n<p>5. <strong>Aral\u0131klar aras\u0131nda \u00f6rt\u00fc\u015fme olursa ne olur?<\/strong>  Aral\u0131klar aras\u0131nda \u00f6rt\u00fc\u015fme olmas\u0131, baz\u0131 verilerin birden fazla aral\u0131\u011fa atanmas\u0131na ve say\u0131m sonu\u00e7lar\u0131n\u0131n yanl\u0131\u015f olmas\u0131na neden olabilir.  Aral\u0131klar\u0131n birbirini d\u0131\u015flamas\u0131n\u0131 sa\u011flamak \u00f6nemlidir.<\/p>\n<p>Yazar: Fatih Soysal<\/p>\n","protected":false},"excerpt":{"rendered":"# PostgreSQL&#8217;de Aral\u0131klara G\u00f6re De\u011fer Say\u0131m\u0131 Nas\u0131l Yap\u0131l\u0131r? PostgreSQL veritaban\u0131n\u0131zda b\u00fcy\u00fck miktarda veri var ve bu verileri belirli&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-26578","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: Aral\u0131klara G\u00f6re De\u011fer Say\u0131m\u0131<\/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-araliklara-gore-deger-sayimi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PostgreSQL: Aral\u0131klara G\u00f6re De\u011fer Say\u0131m\u0131\" \/>\n<meta property=\"og:description\" content=\"Hi\u00e7bir etiketi bulunamad\u0131.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-27T09:15:26+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=\"7 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"PostgreSQL: Aral\u0131klara G\u00f6re De\u011fer Say\u0131m\u0131\",\"datePublished\":\"2025-07-27T09:15:26+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/\"},\"wordCount\":1062,\"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-araliklara-gore-deger-sayimi\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/\",\"name\":\"PostgreSQL: Aral\u0131klara G\u00f6re De\u011fer Say\u0131m\u0131\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-07-27T09:15:26+00:00\",\"description\":\"Hi\u00e7bir etiketi bulunamad\u0131.\",\"breadcrumb\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-araliklara-gore-deger-sayimi\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Anasayfa\",\"item\":\"https:\/\/fatihsoysal.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"PostgreSQL: Aral\u0131klara G\u00f6re De\u011fer Say\u0131m\u0131\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/\",\"name\":\"Fatihsoysal.com\",\"description\":\"Blog - 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