{"id":25179,"date":"2025-07-02T15:22:00","date_gmt":"2025-07-02T12:22:00","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/postgresql-jsonbde-tek-ozellik-degerini-guncelleme\/"},"modified":"2025-07-02T15:22:00","modified_gmt":"2025-07-02T12:22:00","slug":"postgresql-jsonbde-tek-ozellik-degerini-guncelleme","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/postgresql-jsonbde-tek-ozellik-degerini-guncelleme\/","title":{"rendered":"PostgreSQL: JSONB&#8217;de Tek \u00d6zellik De\u011ferini G\u00fcncelleme"},"content":{"rendered":"<p># PostgreSQL JSONB Verisinin Tek Bir \u00d6zelli\u011fini G\u00fcncelleme<\/p>\n<p>PostgreSQL veritaban\u0131n\u0131zda JSONB veri tipi kullan\u0131yorsan\u0131z ve bu verinin i\u00e7indeki tek bir \u00f6zelli\u011fin de\u011ferini g\u00fcncellemeniz gerekiyorsa, do\u011fru y\u00f6ntemleri bilmek olduk\u00e7a \u00f6nemlidir.  Yanl\u0131\u015f y\u00f6ntemler performans sorunlar\u0131na ve beklenmedik sonu\u00e7lara yol a\u00e7abilir. Bu makale, PostgreSQL&#8217;de JSONB verilerinin tek bir \u00f6zelli\u011fini g\u00fcncellemenin farkl\u0131 yollar\u0131n\u0131, ad\u0131m ad\u0131m a\u00e7\u0131klamalar\u0131, ger\u00e7ek d\u00fcnya \u00f6rneklerini ve performans optimizasyon tekniklerini kapsamaktad\u0131r.<\/p>\n<p><strong>\u00d6\u011frenme Yol Haritas\u0131:<\/strong><\/p>\n<p>* <strong>Yeni Ba\u015flayan:<\/strong> <code class=\"language-\">jsonb_set<\/code> fonksiyonunun temel kullan\u0131m\u0131, basit bir \u00f6rnek.<br \/>\n* <strong>Orta Seviye:<\/strong> Ger\u00e7ek d\u00fcnya senaryolar\u0131, <code class=\"language-\">jsonb_set<\/code> ile ko\u015fullu g\u00fcncellemeler, performans ipu\u00e7lar\u0131.<br \/>\n* <strong>\u0130leri Seviye:<\/strong>  Performans analizi,  <code class=\"language-\">jsonb_set<\/code>&#8216;in s\u0131n\u0131rlamalar\u0131, alternatif y\u00f6ntemler, edge case&#8217;ler.<\/p>\n<p><strong>PostgreSQL JSONB&#8217;ye Giri\u015f: Temel Kavramlar<\/strong><\/p>\n<p>JSONB (JSON Binary) veri tipi, PostgreSQL&#8217;de JSON verilerini depolamak i\u00e7in kullan\u0131lan, performans a\u00e7\u0131s\u0131ndan optimize edilmi\u015f bir veri tipidir.  JSON verilerinin aksine, JSONB verileri indekslenebilir ve sorgulanabilir, bu da performans a\u00e7\u0131s\u0131ndan b\u00fcy\u00fck avantaj sa\u011flar.  JSONB yap\u0131s\u0131 anahtar-de\u011fer \u00e7iftlerinden olu\u015fur ve bu \u00e7iftler i\u00e7 i\u00e7e ge\u00e7mi\u015f olabilir.  \u00d6rne\u011fin, bir \u00fcr\u00fcn\u00fcn bilgilerini saklamak i\u00e7in a\u015fa\u011f\u0131daki JSONB yap\u0131s\u0131n\u0131 kullanabiliriz:<\/p>\n<pre class=\"language-jsonb\"><code>{\n  &quot;urun_adi&quot;: &quot;K\u0131rm\u0131z\u0131 Elma&quot;,\n  &quot;fiyat&quot;: 10.50,\n  &quot;stok&quot;: 100,\n  &quot;ozellikler&quot;: {\n    &quot;renk&quot;: &quot;k\u0131rm\u0131z\u0131&quot;,\n    &quot;agirlik&quot;: &quot;150g&quot;\n  }\n}<\/code><\/pre>\n<p>Bu \u00f6rnekte, &#8220;urun_adi&#8221;, &#8220;fiyat&#8221;, &#8220;stok&#8221; ve &#8220;ozellikler&#8221; anahtarlar\u0131, \u00fcr\u00fcn\u00fcn \u00f6zelliklerini temsil eder. &#8220;ozellikler&#8221; anahtar\u0131 ise i\u00e7 i\u00e7e ge\u00e7mi\u015f bir JSONB yap\u0131s\u0131 i\u00e7erir.<\/p>\n<p><strong>JSONB Verisinin Tek Bir \u00d6zelli\u011fini G\u00fcncelleme: <code class=\"language-\">jsonb_set<\/code> Fonksiyonu<\/strong><\/p>\n<p>PostgreSQL&#8217;de JSONB verisinin tek bir \u00f6zelli\u011fini g\u00fcncellemenin en yayg\u0131n yolu <code class=\"language-\">jsonb_set<\/code> fonksiyonudur.  Bu fonksiyon, belirtilen yolda bulunan de\u011feri yeni bir de\u011ferle de\u011fi\u015ftirir.  Yol, nokta (<code class=\"language-\">.<\/code>) ile ayr\u0131lm\u0131\u015f anahtarlardan olu\u015fur.<\/p>\n<p><strong>Yeni Ba\u015flayan:<\/strong><\/p>\n<p><code class=\"language-\">jsonb_set<\/code> fonksiyonunu kullanarak basit bir g\u00fcncelleme yapal\u0131m.  A\u015fa\u011f\u0131daki \u00f6rnekte, <code class=\"language-\">urunler<\/code> tablosunda <code class=\"language-\">urun_bilgileri<\/code> s\u00fctunu JSONB tipindedir.  &#8220;K\u0131rm\u0131z\u0131 Elma&#8221; \u00fcr\u00fcn\u00fcn\u00fcn fiyat\u0131n\u0131 12.00 TL olarak g\u00fcncelleyece\u011fiz:<\/p>\n<pre class=\"language-sql\"><code>UPDATE urunler\nSET urun_bilgileri = jsonb_set(urun_bilgileri, '{fiyat}', '&quot;12.00&quot;')\nWHERE urun_adi = 'K\u0131rm\u0131z\u0131 Elma';<\/code><\/pre>\n<p>Bu kod, <code class=\"language-\">urun_bilgileri<\/code> s\u00fctunundaki &#8220;fiyat&#8221; anahtar\u0131n\u0131n de\u011ferini &#8220;12.00&#8221; olarak de\u011fi\u015ftirir.  <code class=\"language-\">\"12.00\"<\/code> ifadesinin t\u0131rnak i\u00e7inde olmas\u0131 \u00f6nemlidir \u00e7\u00fcnk\u00fc bu bir string de\u011ferdir.  E\u011fer say\u0131sal bir de\u011fer g\u00fcncellemek istiyorsan\u0131z t\u0131rnak i\u015faretlerini kald\u0131rman\u0131z gerekir.<\/p>\n<p><strong>JSONB G\u00fcncelleme: Ko\u015fullu G\u00fcncellemeler ve Ger\u00e7ek D\u00fcnya \u00d6rnekleri (Orta Seviye)<\/strong><\/p>\n<p>Ger\u00e7ek d\u00fcnya senaryolar\u0131nda, genellikle ko\u015fullu g\u00fcncellemeler yapman\u0131z gerekebilir. \u00d6rne\u011fin, sadece belirli bir ko\u015fulu sa\u011flayan kay\u0131tlar\u0131n JSONB verilerini g\u00fcncellemek isteyebilirsiniz. A\u015fa\u011f\u0131daki \u00f6rnekte, sto\u011fu 50&#8217;nin alt\u0131nda olan \u00fcr\u00fcnlerin fiyat\u0131n\u0131 %10 indirece\u011fiz:<\/p>\n<pre class=\"language-sql\"><code>UPDATE urunler\nSET urun_bilgileri = jsonb_set(urun_bilgileri, '{fiyat}', to_jsonb((urun_bilgileri-&gt;&gt;'fiyat')::numeric * 0.9))\nWHERE (urun_bilgileri-&gt;&gt;'stok')::integer &lt; 50;<\/code><\/pre>\n<p>Bu \u00f6rnekte, <code class=\"language-\">(urun_bilgileri->>'stok')::integer < 50<\/code> ko\u015fulu, sto\u011fu 50'nin alt\u0131nda olan \u00fcr\u00fcnleri filtreler.  <code class=\"language-\">urun_bilgileri->>'fiyat'<\/code> ifadesi, \"fiyat\" anahtar\u0131n\u0131n de\u011ferini string olarak al\u0131r ve <code class=\"language-\">::numeric<\/code> ile say\u0131sal bir de\u011fere d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr.  Yeni fiyat, mevcut fiyat\u0131n %90'\u0131 olarak hesaplan\u0131r ve <code class=\"language-\">to_jsonb<\/code> fonksiyonu ile JSONB de\u011ferine d\u00f6n\u00fc\u015ft\u00fcr\u00fcl\u00fcr.<\/p>\n<p><strong>Performans \u0130pu\u00e7lar\u0131:<\/strong><\/p>\n<p>* <strong>\u0130ndeksleme:<\/strong> JSONB s\u00fctunlar\u0131na uygun indeksler olu\u015fturmak, sorgular\u0131n performans\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rabilir.  <code class=\"language-\">jsonb_path_ops<\/code> operat\u00f6r\u00fc ile indeks olu\u015fturarak belirli anahtarlara g\u00f6re h\u0131zl\u0131 arama yapabilirsiniz.<br \/>\n* <strong>Toplu G\u00fcncellemeler:<\/strong> M\u00fcmk\u00fcn oldu\u011funca toplu g\u00fcncellemeler yapmaya \u00e7al\u0131\u015f\u0131n.  Tek tek kay\u0131tlar\u0131 g\u00fcncellemek yerine, <code class=\"language-\">WHERE<\/code> ko\u015fuluyla birden \u00e7ok kayd\u0131 ayn\u0131 anda g\u00fcncelleyebilirsiniz.<br \/>\n* <strong>Fonksiyonlar\u0131n Optimizasyonu:<\/strong>  Karma\u015f\u0131k i\u015flemler yap\u0131yorsan\u0131z, fonksiyonlar\u0131n performans\u0131n\u0131 analiz edin ve optimize etmeye \u00e7al\u0131\u015f\u0131n.<\/p>\n<p><strong>\u0130leri D\u00fczey JSONB G\u00fcncelleme Teknikleri: Performans Analizi ve Edge Case'ler<\/strong><\/p>\n<p><code class=\"language-\">jsonb_set<\/code> fonksiyonu, \u00e7o\u011fu durumda yeterli olsa da, baz\u0131 durumlarda performans sorunlar\u0131na veya beklenmedik sonu\u00e7lara yol a\u00e7abilir.  \u00d6zellikle b\u00fcy\u00fck JSONB verileri ile \u00e7al\u0131\u015f\u0131rken, performans analizi yapman\u0131z ve alternatif y\u00f6ntemleri de\u011ferlendirmeniz \u00f6nemlidir.<\/p>\n<p><strong>Performans Analizi:<\/strong><\/p>\n<p>B\u00fcy\u00fck veri k\u00fcmeleri \u00fczerinde <code class=\"language-\">jsonb_set<\/code> kullanmadan \u00f6nce, performans testleri yaparak i\u015flemin ne kadar s\u00fcrece\u011fini tahmin etmek \u00f6nemlidir.  <code class=\"language-\">EXPLAIN ANALYZE<\/code> komutu ile sorgunun y\u00fcr\u00fctme plan\u0131n\u0131 ve s\u00fcresini inceleyebilirsiniz.<\/p>\n<p><strong>Alternatif Y\u00f6ntemler:<\/strong><\/p>\n<p>Baz\u0131 durumlarda, <code class=\"language-\">jsonb_set<\/code> yerine <code class=\"language-\">jsonb_insert<\/code> veya <code class=\"language-\">jsonb_build_object<\/code> fonksiyonlar\u0131n\u0131 kullanmak daha performansl\u0131 olabilir.  Bu fonksiyonlar, verinin tamam\u0131n\u0131 yeniden olu\u015fturmak yerine, sadece gerekli de\u011fi\u015fiklikleri yapar.<\/p>\n<p><strong>Edge Case'ler:<\/strong><\/p>\n<p>* <strong>Yol bulunamad\u0131:<\/strong> E\u011fer <code class=\"language-\">jsonb_set<\/code> fonksiyonu taraf\u0131ndan belirtilen yol mevcut de\u011filse, yeni bir anahtar-de\u011fer \u00e7ifti ekler.<br \/>\n* <strong>Bo\u015f de\u011ferler:<\/strong>  <code class=\"language-\">jsonb_set<\/code> fonksiyonu, bo\u015f de\u011ferleri (<code class=\"language-\">NULL<\/code>) do\u011fru \u015fekilde i\u015fleyebilir.  Bo\u015f de\u011ferleri eklemek veya kald\u0131rmak i\u00e7in dikkatli olmal\u0131s\u0131n\u0131z.<br \/>\n* <strong>Karma\u015f\u0131k JSONB yap\u0131lar:<\/strong>  \u00c7ok seviyeli i\u00e7 i\u00e7e ge\u00e7mi\u015f JSONB yap\u0131lar\u0131nda, yol belirlemede dikkatli olmak gerekir. Yanl\u0131\u015f bir yol belirlemek, beklenmedik sonu\u00e7lara yol a\u00e7abilir.<\/p>\n<p><strong>Uygulamal\u0131 K\u0131lavuz: Ad\u0131m Ad\u0131m \u00d6rnekler ve Kod Blo\u011fu<\/strong><\/p>\n<p>Bu b\u00f6l\u00fcmde, farkl\u0131 senaryolarda <code class=\"language-\">jsonb_set<\/code> fonksiyonunun nas\u0131l kullan\u0131laca\u011f\u0131n\u0131 ad\u0131m ad\u0131m a\u00e7\u0131klayaca\u011f\u0131z.  \u00d6rnekler, bir e-ticaret sitesindeki \u00fcr\u00fcn bilgilerini i\u00e7eren bir tabloyu baz alacakt\u0131r.<\/p>\n<p><strong>\u00d6rnek 1: Tek bir \u00f6zelli\u011fin g\u00fcncellenmesi:<\/strong><\/p>\n<pre class=\"language-sql\"><code>UPDATE urunler\nSET urun_bilgileri = jsonb_set(urun_bilgileri, '{fiyat}', '&quot;15.00&quot;')\nWHERE urun_id = 1;<\/code><\/pre>\n<p><strong>\u00d6rnek 2: \u0130\u00e7 i\u00e7e ge\u00e7mi\u015f bir \u00f6zelli\u011fin g\u00fcncellenmesi:<\/strong><\/p>\n<pre class=\"language-sql\"><code>UPDATE urunler\nSET urun_bilgileri = jsonb_set(urun_bilgileri, '{ozellikler,renk}', '&quot;mavi&quot;')\nWHERE urun_id = 2;<\/code><\/pre>\n<p><strong>\u00d6rnek 3: Ko\u015fullu g\u00fcncelleme:<\/strong><\/p>\n<pre class=\"language-sql\"><code>UPDATE urunler\nSET urun_bilgileri = jsonb_set(urun_bilgileri, '{fiyat}', to_jsonb((urun_bilgileri-&gt;&gt;'fiyat')::numeric * 0.8))\nWHERE (urun_bilgileri-&gt;&gt;'stok')::integer &lt; 10;<\/code><\/pre>\n<p><strong>Sonu\u00e7<\/strong><\/p>\n<p>PostgreSQL'de JSONB verilerinin tek bir \u00f6zelli\u011fini g\u00fcncellemek i\u00e7in en yayg\u0131n y\u00f6ntem <code class=\"language-\">jsonb_set<\/code> fonksiyonudur. Ancak, performans ve beklenmedik sonu\u00e7lar\u0131 \u00f6nlemek i\u00e7in do\u011fru y\u00f6ntemi se\u00e7mek ve dikkatli olmak \u00f6nemlidir. Bu makalede ele al\u0131nan y\u00f6ntemler ve ipu\u00e7lar\u0131,  PostgreSQL JSONB verileriyle daha verimli \u00e7al\u0131\u015fman\u0131za yard\u0131mc\u0131 olacakt\u0131r.  Daha fazla bilgi i\u00e7in [Fatih Soysal'\u0131n web sitesini](https:\/\/fatihsoysal.com) ziyaret edebilirsiniz.<\/p>\n<p><strong>S\u0131k\u00e7a Sorulan Sorular:<\/strong><\/p>\n<p>1. <code class=\"language-\">jsonb_set<\/code> fonksiyonu, mevcut olmayan bir anahtar i\u00e7in \u00e7a\u011fr\u0131l\u0131rsa ne olur?  Yeni bir anahtar-de\u011fer \u00e7ifti ekler.<br \/>\n2. <code class=\"language-\">jsonb_set<\/code> fonksiyonu ile nas\u0131l toplu g\u00fcncelleme yap\u0131l\u0131r?  <code class=\"language-\">UPDATE<\/code> komutunun <code class=\"language-\">WHERE<\/code> ko\u015fulunu kullanarak birden fazla kayd\u0131 ayn\u0131 anda g\u00fcncelleyebilirsiniz.<br \/>\n3. JSONB verilerinde indeksleme nas\u0131l yap\u0131l\u0131r? <code class=\"language-\">CREATE INDEX<\/code> komutu ile <code class=\"language-\">jsonb_path_ops<\/code> operat\u00f6r\u00fcn\u00fc kullanarak belirli anahtarlara g\u00f6re indeks olu\u015fturabilirsiniz.<br \/>\n4. <code class=\"language-\">jsonb_set<\/code>'in performans\u0131n\u0131 nas\u0131l optimize edebilirim? Toplu g\u00fcncellemeler yap\u0131n, uygun indeksler olu\u015fturun ve fonksiyonlar\u0131n performans\u0131n\u0131 analiz edin.<br \/>\n5. <code class=\"language-\">jsonb_set<\/code> d\u0131\u015f\u0131nda JSONB verilerini g\u00fcncellemenin ba\u015fka yollar\u0131 var m\u0131?  <code class=\"language-\">jsonb_insert<\/code> ve <code class=\"language-\">jsonb_build_object<\/code> fonksiyonlar\u0131 alternatif olabilir.<\/p>\n<p>Yazar: Fatih Soysal<\/p>\n","protected":false},"excerpt":{"rendered":"# PostgreSQL JSONB Verisinin Tek Bir \u00d6zelli\u011fini G\u00fcncelleme PostgreSQL veritaban\u0131n\u0131zda JSONB veri tipi kullan\u0131yorsan\u0131z ve bu verinin i\u00e7indeki&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-25179","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) - 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