{"id":26406,"date":"2025-07-24T18:15:23","date_gmt":"2025-07-24T15:15:23","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/"},"modified":"2025-07-24T18:15:23","modified_gmt":"2025-07-24T15:15:23","slug":"postgresql-n-gunden-eski-tum-satirlari-silme","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/","title":{"rendered":"PostgreSQL: N G\u00fcnden Eski T\u00fcm Sat\u0131rlar\u0131 Silme"},"content":{"rendered":"<p># PostgreSQL&#8217;de N G\u00fcnden Eski Sat\u0131rlar\u0131 Silmek: Tam Bir K\u0131lavuz<\/p>\n<p>Veri taban\u0131n\u0131z \u015fi\u015fiyor ve performans d\u00fc\u015f\u00fcyor mu?  Eski verilerin art\u0131k ihtiyac\u0131n\u0131z olmad\u0131\u011f\u0131n\u0131 biliyor, ancak bunlar\u0131 nas\u0131l verimli ve g\u00fcvenli bir \u015fekilde silece\u011finizi bilmiyor musunuz? Bu makalede, PostgreSQL&#8217;de N g\u00fcnden eski sat\u0131rlar\u0131 silmenin farkl\u0131 y\u00f6ntemlerini, performans optimizasyon tekniklerini ve olas\u0131 sorunlar\u0131 ad\u0131m ad\u0131m ele alaca\u011f\u0131z.  PostgreSQL veritaban\u0131n\u0131z\u0131 temizleyip performans\u0131n\u0131 art\u0131rman\u0131n yollar\u0131n\u0131 ke\u015ffedece\u011fiz.<\/p>\n<p><strong>PostgreSQL&#8217;de Zaman Tabanl\u0131 Veri Silme: Temel Kavramlar<\/strong><\/p>\n<p>PostgreSQL, g\u00fc\u00e7l\u00fc bir a\u00e7\u0131k kaynak ili\u015fkisel veritaban\u0131 y\u00f6netim sistemidir.  Veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc ve performans\u0131n\u0131 sa\u011flamak i\u00e7in \u00e7e\u015fitli ara\u00e7lar sunar.  Eski verilerin silinmesi, disk alan\u0131ndan tasarruf etmenin ve sorgu performans\u0131n\u0131 iyile\u015ftirmenin \u00f6nemli bir yoludur.  Bunun i\u00e7in genellikle verilerinizde bir zaman damgas\u0131 s\u00fctunu (<code class=\"language-\">timestamp<\/code> veya <code class=\"language-\">date<\/code>) bulunmal\u0131d\u0131r. Bu s\u00fctun, her kayd\u0131n ne zaman eklendi\u011fini veya g\u00fcncellendi\u011fini g\u00f6sterir.<\/p>\n<p>PostgreSQL&#8217;de tarih ve zaman i\u015flemleri i\u00e7in bir\u00e7ok fonksiyon mevcuttur.  <code class=\"language-\">NOW()<\/code> fonksiyonu \u015fu anki zaman\u0131, <code class=\"language-\">AGE()<\/code> fonksiyonu iki tarih aras\u0131ndaki fark\u0131, <code class=\"language-\">INTERVAL<\/code> ise s\u00fcreleri belirtir.  Bu fonksiyonlar\u0131 kullanarak, belirli bir tarihten eski kay\u0131tlar\u0131 filtreleyebilir ve silebilirsiniz.<\/p>\n<p><strong>PostgreSQL&#8217;de N G\u00fcnden Eski Sat\u0131rlar Nas\u0131l Silinir? (Yeni Ba\u015flayanlar \u0130\u00e7in)<\/strong><\/p>\n<p><strong>Ad\u0131m 1:  Hedef Tabloyu ve Zaman S\u00fctununu Belirleme<\/strong><\/p>\n<p>\u0130lk ad\u0131m, eski verileri silmek istedi\u011finiz tabloyu ve bu tablodaki zaman damgas\u0131 s\u00fctununu belirlemektir.  \u00d6rne\u011fin, <code class=\"language-\">musteriler<\/code> adl\u0131 bir tablomuz olsun ve her m\u00fc\u015fterinin kayd\u0131n\u0131n tarihi <code class=\"language-\">kayit_tarihi<\/code> s\u00fctununda saklan\u0131yor olsun.<\/p>\n<p><strong>Ad\u0131m 2: Basit DELETE Komutu<\/strong><\/p>\n<p>En basit y\u00f6ntem, <code class=\"language-\">DELETE<\/code> komutunu <code class=\"language-\">WHERE<\/code> ko\u015fulu ile kullanmakt\u0131r.  A\u015fa\u011f\u0131daki \u00f6rnek, <code class=\"language-\">kayit_tarihi<\/code> s\u00fctununda 30 g\u00fcnden eski kay\u0131tlar\u0131 siler:<\/p>\n<pre class=\"language-sql\"><code>DELETE FROM musteriler\nWHERE kayit_tarihi &lt; NOW() - INTERVAL '30 day';<\/code><\/pre>\n<p>Bu komut, <code class=\"language-\">kayit_tarihi<\/code> s\u00fctunundaki tarih, \u015fu anki tarihten 30 g\u00fcn \u00f6nceye kadar olan t\u00fcm sat\u0131rlar\u0131 siler.<\/p>\n<p><strong>Ad\u0131m 3:  Sonu\u00e7 Kontrol\u00fc<\/strong><\/p>\n<p>Komutu \u00e7al\u0131\u015ft\u0131rd\u0131ktan sonra, silinen sat\u0131r say\u0131s\u0131n\u0131 kontrol etmek i\u00e7in <code class=\"language-\">COUNT(*)<\/code> fonksiyonunu kullanabilirsiniz:<\/p>\n<pre class=\"language-sql\"><code>SELECT COUNT(*) FROM musteriler WHERE kayit_tarihi &lt; NOW() - INTERVAL '30 day';<\/code><\/pre>\n<p>Bu, silme i\u015fleminin ba\u015far\u0131l\u0131 olup olmad\u0131\u011f\u0131n\u0131 do\u011frulaman\u0131za yard\u0131mc\u0131 olur.<\/p>\n<p><strong>PostgreSQL&#8217;de N G\u00fcnden Eski Sat\u0131rlar\u0131 Silmek: Ger\u00e7ek D\u00fcnya \u00d6rne\u011fi (Orta Seviye)<\/strong><\/p>\n<p>Bir e-ticaret sitesi d\u00fc\u015f\u00fcnelim.  Sipari\u015f ge\u00e7mi\u015fi <code class=\"language-\">siparisler<\/code> adl\u0131 bir tabloda saklan\u0131yor ve her sipari\u015fin <code class=\"language-\">siparis_tarihi<\/code> s\u00fctunu bulunuyor.  Site y\u00f6neticisi, 1 y\u0131ldan eski sipari\u015f kay\u0131tlar\u0131n\u0131 silmek istiyor.  Bu durumda, a\u015fa\u011f\u0131daki komutu kullanabilir:<\/p>\n<pre class=\"language-sql\"><code>DELETE FROM siparisler\nWHERE siparis_tarihi &lt; NOW() - INTERVAL '1 year';<\/code><\/pre>\n<p><strong>Optimizasyon \u0130pu\u00e7lar\u0131:<\/strong><\/p>\n<p>* <strong>\u0130ndeksler:<\/strong> <code class=\"language-\">siparis_tarihi<\/code> s\u00fctununa bir indeks eklemek, silme i\u015fleminin performans\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rabilir.  \u0130ndeks, veritaban\u0131n\u0131n ilgili sat\u0131rlar\u0131 daha h\u0131zl\u0131 bulmas\u0131na yard\u0131mc\u0131 olur.  \u0130ndeks eklemek i\u00e7in a\u015fa\u011f\u0131daki komutu kullanabilirsiniz:<\/p>\n<pre class=\"language-sql\"><code>CREATE INDEX siparis_tarihi_idx ON siparisler (siparis_tarihi);<\/code><\/pre>\n<p>* <strong>\u0130\u015flem G\u00fcnl\u00fc\u011f\u00fc:<\/strong>  B\u00fcy\u00fck veri k\u00fcmeleri i\u00e7in silme i\u015flemi uzun s\u00fcrebilir.  \u0130\u015flem g\u00fcnl\u00fc\u011f\u00fcn\u00fc devre d\u0131\u015f\u0131 b\u0131rakmak, performans\u0131 art\u0131rabilir ancak veri g\u00fcvenli\u011fi a\u00e7\u0131s\u0131ndan risk olu\u015fturabilir.  Bu nedenle, bu se\u00e7ene\u011fi dikkatlice de\u011ferlendirmelisiniz.<\/p>\n<p><strong>PostgreSQL&#8217;de N G\u00fcnden Eski Sat\u0131rlar\u0131 Silme: Performans Analizi ve Edge Case&#8217;ler (\u0130leri Seviye)<\/strong><\/p>\n<p>B\u00fcy\u00fck miktarda veri silerken performans kritik hale gelir.  <code class=\"language-\">EXPLAIN ANALYZE<\/code> komutu, sorgu plan\u0131n\u0131 ve y\u00fcr\u00fctme s\u00fcresini analiz etmenize yard\u0131mc\u0131 olur.  \u00d6rne\u011fin:<\/p>\n<pre class=\"language-sql\"><code>EXPLAIN ANALYZE DELETE FROM siparisler WHERE siparis_tarihi &lt; NOW() - INTERVAL '1 year';<\/code><\/pre>\n<p>Bu komut, silme i\u015fleminin nas\u0131l ger\u00e7ekle\u015fti\u011fini ve ne kadar s\u00fcrd\u00fc\u011f\u00fcn\u00fc g\u00f6sterir.  Analiz sonu\u00e7lar\u0131na g\u00f6re, indeksleme, sorgu optimizasyonu veya par\u00e7alama gibi teknikleri kullanarak performans\u0131 iyile\u015ftirebilirsiniz.<\/p>\n<p><strong>Edge Case&#8217;ler:<\/strong><\/p>\n<p>* <strong>Par\u00e7alama (Partitioning):<\/strong> \u00c7ok b\u00fcy\u00fck tablolar i\u00e7in, par\u00e7alama performans\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rabilir.  Par\u00e7alama, tabloyu daha k\u00fc\u00e7\u00fck, y\u00f6netilebilir par\u00e7alara ay\u0131r\u0131r.  Eski par\u00e7alar\u0131 tamamen silebilirsiniz.<br \/>\n* <strong>\u0130\u015flem S\u0131ras\u0131:<\/strong>  Birden fazla i\u015flem ayn\u0131 anda \u00e7al\u0131\u015f\u0131yorsa, veri tutars\u0131zl\u0131\u011f\u0131na neden olabilir.  \u0130\u015flemleri do\u011fru s\u0131rayla \u00e7al\u0131\u015ft\u0131rmak veya kilit mekanizmalar\u0131 kullanmak \u00f6nemlidir.<br \/>\n* <strong>Geri Alma (Rollback):<\/strong>  Yanl\u0131\u015fl\u0131kla silinen verileri geri almak i\u00e7in yedeklemeler d\u00fczenli olarak al\u0131nmal\u0131d\u0131r.  PostgreSQL&#8217;in sa\u011flad\u0131\u011f\u0131 <code class=\"language-\">pg_dump<\/code> gibi ara\u00e7lar\u0131 kullanabilirsiniz.  Ayr\u0131ca, silme i\u015flemini bir i\u015flem i\u00e7inde ger\u00e7ekle\u015ftirerek, gerekti\u011finde geri alma i\u015flemini kolayla\u015ft\u0131rabilirsiniz.<\/p>\n<p><strong>\u00d6\u011frenme Yol Haritas\u0131<\/strong><\/p>\n<p><strong>Yeni Ba\u015flayan:<\/strong>  <code class=\"language-\">DELETE<\/code> komutunun temel kullan\u0131m\u0131, <code class=\"language-\">NOW()<\/code> ve <code class=\"language-\">INTERVAL<\/code> fonksiyonlar\u0131, basit bir \u00f6rnek (<code class=\"language-\">musteriler<\/code> tablosu).<\/p>\n<p><strong>Orta:<\/strong>  Ger\u00e7ek d\u00fcnya \u00f6rne\u011fi (<code class=\"language-\">siparisler<\/code> tablosu), indeksleme, i\u015flem g\u00fcnl\u00fc\u011f\u00fc, <code class=\"language-\">EXPLAIN ANALYZE<\/code> komutu.<\/p>\n<p><strong>\u0130leri D\u00fczey:<\/strong>  Par\u00e7alama, i\u015flem s\u0131ras\u0131, geri alma, veri tutarl\u0131l\u0131\u011f\u0131, performans optimizasyon tekniklerinin detayl\u0131 analizi, karma\u015f\u0131k ko\u015fullar ve istisnai durumlar\u0131n ele al\u0131nmas\u0131.<\/p>\n<p><strong>S\u0131k\u00e7a Sorulan Sorular (SSS)<\/strong><\/p>\n<p>1. <strong>Silme i\u015flemini geri alabilir miyim?<\/strong>  E\u011fer i\u015flem g\u00fcnl\u00fc\u011f\u00fc etkinse ve yedekleriniz varsa, silinen verileri geri alabilirsiniz.  Ancak, yedeklemelerin d\u00fczenli olarak al\u0131nmas\u0131 \u00f6nemlidir.<\/p>\n<p>2. <strong>\u00c7ok b\u00fcy\u00fck bir tabloyu silerken ne yapmal\u0131y\u0131m?<\/strong>  B\u00fcy\u00fck tablolar i\u00e7in par\u00e7alama, toplu silme i\u015flemleri veya <code class=\"language-\">TRUNCATE<\/code> komutu gibi performans iyile\u015ftirme teknikleri kullan\u0131n.<\/p>\n<p>3. <strong>Silme i\u015flemi ne kadar s\u00fcrer?<\/strong>  Bu, tablo boyutuna, indekslere ve donan\u0131ma ba\u011fl\u0131d\u0131r.  <code class=\"language-\">EXPLAIN ANALYZE<\/code> komutu ile tahmini s\u00fcreleri \u00f6\u011frenebilirsiniz.<\/p>\n<p>4. <strong>Silme i\u015flemi s\u0131ras\u0131nda veritaban\u0131 eri\u015filemez hale gelir mi?<\/strong>  Genellikle hay\u0131r, ancak \u00e7ok b\u00fcy\u00fck i\u015flemler performans\u0131 ge\u00e7ici olarak etkileyebilir.  \u0130\u015flemleri do\u011fru \u015fekilde planlamak \u00f6nemlidir.<\/p>\n<p>5. <strong>Hangi indeksleme stratejisi en iyisidir?<\/strong>  Bu, veritaban\u0131 yap\u0131n\u0131za ve sorgu modellerinize ba\u011fl\u0131d\u0131r.  <code class=\"language-\">siparis_tarihi<\/code> gibi s\u0131k kullan\u0131lan s\u00fctunlara indeks eklemek genellikle iyi bir uygulamad\u0131r.  Ancak, indekslerin \u00e7ok fazla say\u0131da olmas\u0131 sorgu performans\u0131n\u0131 olumsuz etkileyebilir.<\/p>\n<p>Yazar: Fatih Soysal<\/p>\n","protected":false},"excerpt":{"rendered":"# PostgreSQL&#8217;de N G\u00fcnden Eski Sat\u0131rlar\u0131 Silmek: Tam Bir K\u0131lavuz Veri taban\u0131n\u0131z \u015fi\u015fiyor ve performans d\u00fc\u015f\u00fcyor mu? Eski&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-26406","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: N G\u00fcnden Eski T\u00fcm Sat\u0131rlar\u0131 Silme<\/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-n-gunden-eski-tum-satirlari-silme\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PostgreSQL: N G\u00fcnden Eski T\u00fcm Sat\u0131rlar\u0131 Silme\" \/>\n<meta property=\"og:description\" content=\"Hi\u00e7bir etiketi bulunamad\u0131.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/\" \/>\n<meta property=\"og:site_name\" content=\"Kodlar\u0131n Gizemli D\u00fcnyas\u0131\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-24T15:15:23+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=\"5 dakika\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/\"},\"author\":{\"name\":\"Fatih Soysal\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1\"},\"headline\":\"PostgreSQL: N G\u00fcnden Eski T\u00fcm Sat\u0131rlar\u0131 Silme\",\"datePublished\":\"2025-07-24T15:15:23+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/\"},\"wordCount\":934,\"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-n-gunden-eski-tum-satirlari-silme\/#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/\",\"name\":\"PostgreSQL: N G\u00fcnden Eski T\u00fcm Sat\u0131rlar\u0131 Silme\",\"isPartOf\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\"},\"datePublished\":\"2025-07-24T15:15:23+00:00\",\"description\":\"Hi\u00e7bir etiketi bulunamad\u0131.\",\"breadcrumb\":{\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/postgresql-n-gunden-eski-tum-satirlari-silme\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Anasayfa\",\"item\":\"https:\/\/fatihsoysal.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"PostgreSQL: N G\u00fcnden Eski T\u00fcm Sat\u0131rlar\u0131 Silme\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/fatihsoysal.com\/blog\/#website\",\"url\":\"https:\/\/fatihsoysal.com\/blog\/\",\"name\":\"Fatihsoysal.com\",\"description\":\"Blog - 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