{"id":4129,"date":"2024-11-17T15:45:14","date_gmt":"2024-11-17T12:45:14","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/oracle-sqlde-mutating-trigger-hatasi-cozumu\/"},"modified":"2024-11-17T15:45:14","modified_gmt":"2024-11-17T12:45:14","slug":"oracle-sqlde-mutating-trigger-hatasi-cozumu","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/oracle-sqlde-mutating-trigger-hatasi-cozumu\/","title":{"rendered":"Oracle SQL&#8217;de Mutating Trigger Hatas\u0131 \u00c7\u00f6z\u00fcm\u00fc"},"content":{"rendered":"<p>&#8220;`html<br \/>\n<!DOCTYPE html><br \/>\n<html lang=\"tr\"><br \/>\n<head><br \/>\n  <meta charset=\"UTF-8\"><br \/>\n  <title>Oracle SQL&#8217;de Mutating Trigger Hatas\u0131 \u00c7\u00f6z\u00fcm\u00fc<\/title><br \/>\n<\/head><br \/>\n<body><\/p>\n<p>Oracle SQL&#8217;de Mutating Trigger Hatas\u0131 \u00c7\u00f6z\u00fcm\u00fc<\/p>\n<p>Oracle veritabanlar\u0131nda s\u0131k kar\u015f\u0131la\u015f\u0131lan bir hata t\u00fcr\u00fc olan &#8220;mutating trigger&#8221; hatas\u0131, tetikleyicinin (trigger) ayn\u0131 anda hem okudu\u011fu hem de de\u011fi\u015ftirdi\u011fi tablo \u00fczerinde \u00e7al\u0131\u015fmas\u0131 sonucunda ortaya \u00e7\u0131kar. Bu durum, veritaban\u0131n\u0131n tutarl\u0131l\u0131\u011f\u0131n\u0131 ve g\u00fcvenilirli\u011fini tehlikeye atabilir.  Bu makalede, bu hatan\u0131n nedenlerini, nas\u0131l te\u015fhis edilece\u011fini ve farkl\u0131 \u00e7\u00f6z\u00fcm y\u00f6ntemlerini detayl\u0131 olarak ele alaca\u011f\u0131z.<\/p>\n<h2>Mutating Trigger Hatas\u0131n\u0131n Nedenleri<\/h2>\n<p>Mutating trigger hatas\u0131, genellikle bir tetikleyici i\u00e7inde, tetikleyiciyi \u00e7al\u0131\u015ft\u0131ran ayn\u0131 tablo \u00fczerinde UPDATE, INSERT veya DELETE i\u015flemleri yap\u0131ld\u0131\u011f\u0131nda olu\u015fur.  \u00d6rne\u011fin, bir sat\u0131r\u0131 g\u00fcncellemek i\u00e7in kullan\u0131lan bir tetikleyici, ayn\u0131 tablo i\u00e7inde ba\u015fka bir sat\u0131r\u0131 g\u00fcncellemeye \u00e7al\u0131\u015f\u0131rsa, bu hata ile kar\u015f\u0131la\u015f\u0131l\u0131r.  Bunun temel sebebi, veritaban\u0131n\u0131n tutarl\u0131l\u0131\u011f\u0131n\u0131 sa\u011flamak i\u00e7in uygulad\u0131\u011f\u0131 k\u0131s\u0131tlamalard\u0131r.  Veritaban\u0131, ayn\u0131 i\u015flem s\u0131ras\u0131nda bir tablonun birden fazla yerinde de\u011fi\u015fiklik yap\u0131lmas\u0131n\u0131 engellemeye \u00e7al\u0131\u015f\u0131r.<\/p>\n<h2>Hatay\u0131 Te\u015fhis Etmek<\/h2>\n<p>Bu hatayla kar\u015f\u0131la\u015ft\u0131\u011f\u0131n\u0131zda, hata mesaj\u0131 size genellikle hangi tetikleyicide ve hangi tabloda hata olu\u015ftu\u011funu bildirir.  Hata mesaj\u0131n\u0131 dikkatlice inceleyerek, sorunun kayna\u011f\u0131n\u0131 belirleyebilirsiniz.  Ayr\u0131ca, tetikleyicinin kodunu inceleyerek, hangi sat\u0131rlar\u0131n problemi yaratt\u0131\u011f\u0131n\u0131 tespit edebilirsiniz.  Bu a\u015famada,  tetikleyicinin hangi durumlarda \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 ve ne gibi i\u015flemler ger\u00e7ekle\u015ftirdi\u011fini anlamak olduk\u00e7a \u00f6nemlidir.  Hata ay\u0131klama (debugging) ara\u00e7lar\u0131n\u0131 kullanarak, kodun ad\u0131m ad\u0131m \u00e7al\u0131\u015fmas\u0131n\u0131 inceleyebilirsiniz.<\/p>\n<h2>\u00c7\u00f6z\u00fcm Y\u00f6ntemleri<\/h2>\n<p>Mutating trigger hatas\u0131n\u0131 \u00e7\u00f6zmek i\u00e7in birka\u00e7 farkl\u0131 y\u00f6ntem kullan\u0131labilir.  En yayg\u0131n \u00e7\u00f6z\u00fcmler \u015funlard\u0131r:<\/p>\n<h3>1. \u0130kinci bir Tablo Kullan\u0131m\u0131:<\/h3>\n<p>Tetikleyici, as\u0131l tablo \u00fczerinde de\u011fil, bir ge\u00e7ici tablo veya ba\u015fka bir tablo \u00fczerinde i\u015flem yaparak bu sorunu a\u015fabilir.  \u00d6ncelikle, ilgili veriler ge\u00e7ici bir tabloya kopyalan\u0131r, i\u015flemler bu ge\u00e7ici tablo \u00fczerinde ger\u00e7ekle\u015ftirilir ve sonras\u0131nda as\u0131l tabloya g\u00fcncellenir. Bu y\u00f6ntem, veritaban\u0131n\u0131n tutarl\u0131l\u0131\u011f\u0131n\u0131 korurken, istenen de\u011fi\u015fiklikleri ger\u00e7ekle\u015ftirmenizi sa\u011flar.  Bu yakla\u015f\u0131m, karma\u015f\u0131k i\u015flemler i\u00e7in olduk\u00e7a etkili olabilir.<\/p>\n<h3>2.  INSTEAD OF Trigger Kullan\u0131m\u0131:<\/h3>\n<p>Baz\u0131 durumlarda, `INSTEAD OF` tetikleyicileri kullanmak faydal\u0131 olabilir.  Bu tetikleyiciler,  g\u00f6r\u00fcn\u00fcm (view) \u00fczerinde yap\u0131lan INSERT, UPDATE veya DELETE i\u015flemlerini yakalayabilir ve bu i\u015flemleri as\u0131l tablo \u00fczerinde ger\u00e7ekle\u015ftirebilir. B\u00f6ylece, do\u011frudan as\u0131l tabloyu de\u011fi\u015ftirmekten ka\u00e7\u0131n\u0131l\u0131r.  Bu, \u00f6zellikle g\u00f6r\u00fcn\u00fcm \u00fczerinde \u00e7al\u0131\u015fan uygulamalar i\u00e7in kullan\u0131\u015fl\u0131d\u0131r.  Ancak, dikkatli bir tasar\u0131m gerektirir.<\/p>\n<h3>3.  FOR EACH ROW Kullan\u0131m\u0131 (Dikkatli Kullan\u0131m):<\/h3>\n<p>E\u011fer tetikleyici `FOR EACH ROW` kullan\u0131yorsa ve ayn\u0131 sat\u0131r\u0131 birden fazla kez g\u00fcncellemeye \u00e7al\u0131\u015f\u0131yorsa, bu durumu \u00f6nlemek i\u00e7in kodun yeniden d\u00fczenlenmesi gerekebilir.  \u00d6rne\u011fin, g\u00fcncelleme i\u015flemini ko\u015fullu hale getirerek, ayn\u0131 sat\u0131r\u0131n birden fazla g\u00fcncellenmesini engelleyebilirsiniz.  Ancak bu y\u00f6ntem, dikkatli kullan\u0131lmal\u0131d\u0131r, \u00e7\u00fcnk\u00fc yanl\u0131\u015f kullan\u0131mda verilerin tutars\u0131zl\u0131\u011fa yol a\u00e7abilir.<\/p>\n<h3>4.  Asenkron \u0130\u015flemler:<\/h3>\n<p>Baz\u0131 durumlarda, g\u00fcncelleme i\u015flemlerini asenkron olarak ger\u00e7ekle\u015ftirmek \u00e7\u00f6z\u00fcm olabilir.  Bu, tetikleyicinin ana i\u015flemi tamamlad\u0131ktan sonra, g\u00fcncelleme i\u015flemlerinin arka planda ger\u00e7ekle\u015ftirilmesini sa\u011flar.  Bu y\u00f6ntem, performans sorunlar\u0131na yol a\u00e7abilece\u011fi i\u00e7in dikkatli kullan\u0131lmal\u0131d\u0131r.<\/p>\n<p>Unutmay\u0131n ki, en uygun \u00e7\u00f6z\u00fcm,  tetikleyicinin amac\u0131na ve veritaban\u0131 tasar\u0131m\u0131na ba\u011fl\u0131d\u0131r.  Hata ay\u0131klama s\u00fcreci, sorunun do\u011fru te\u015fhis edilmesi ve en uygun \u00e7\u00f6z\u00fcm\u00fcn se\u00e7ilmesi i\u00e7in \u00e7ok \u00f6nemlidir. <\/p>\n<p>Daha fazla bilgi i\u00e7in <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> sitesini ziyaret edebilirsiniz.  Ayr\u0131ca Oracle dok\u00fcmanlar\u0131na da g\u00f6z atabilirsiniz. <a href=\"https:\/\/docs.oracle.com\/en\/database\/oracle\/oracle-database\/19\/concp\/triggers.html#GUID-E239A6D1-8898-455C-920B-30275321200A\">Oracle Triggers Dok\u00fcman\u0131<\/a> <\/p>\n<p><img decoding=\"async\" src=\"https:\/\/via.placeholder.com\/500x300?text=Mutating+Trigger+Hatas\u0131\" alt=\"Mutating Trigger Hatas\u0131 G\u00f6rseli\"><\/p>\n<h2>Sonu\u00e7<\/h2>\n<p>Oracle SQL&#8217;de mutating trigger hatas\u0131, dikkatli bir veritaban\u0131 tasar\u0131m\u0131 ve tetikleyici yaz\u0131m\u0131 ile \u00f6nlenebilir.  Bu makalede anlat\u0131lan y\u00f6ntemler, bu hatan\u0131n \u00e7\u00f6z\u00fcm\u00fcnde size yard\u0131mc\u0131 olacakt\u0131r.  Ancak, her durum farkl\u0131 oldu\u011fu i\u00e7in, sorunun \u00f6zelli\u011fine uygun \u00e7\u00f6z\u00fcm y\u00f6ntemini se\u00e7mek \u00f6nemlidir.  Hata ay\u0131klama s\u00fcrecine gereken zaman\u0131 ay\u0131rarak, veritaban\u0131n\u0131z\u0131n tutarl\u0131l\u0131\u011f\u0131n\u0131 ve g\u00fcvenilirli\u011fini koruyabilirsiniz.<\/p>\n<p>#Etiketler: Oracle, SQL, Mutating Trigger, Veritaban\u0131, Tetikleyici, Hata \u00c7\u00f6z\u00fcm\u00fc,  Programlama,  Veritaban\u0131 Tasar\u0131m\u0131,  SQL Tetikleyicileri,  Oracle Hata Ay\u0131klama<br \/>\n<\/body><br \/>\n<\/html><br \/>\n&#8220;`<\/p>\n","protected":false},"excerpt":{"rendered":"&#8220;`html Oracle SQL&#8217;de Mutating Trigger Hatas\u0131 \u00c7\u00f6z\u00fcm\u00fc Oracle SQL&#8217;de Mutating Trigger Hatas\u0131 \u00c7\u00f6z\u00fcm\u00fc Oracle veritabanlar\u0131nda s\u0131k kar\u015f\u0131la\u015f\u0131lan bir&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-4129","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>Oracle SQL&#039;de Mutating Trigger Hatas\u0131 \u00c7\u00f6z\u00fcm\u00fc<\/title>\n<meta name=\"description\" content=\"Oracle veritabanlar\u0131nda s\u0131k kar\u015f\u0131la\u015f\u0131lan bir hata t\u00fcr\u00fc olan &quot;mutating trigger&quot; hatas\u0131, tetikleyicinin (trigger) ayn\u0131 anda hem okudu\u011fu hem de de\u011fi\u015ftirdi\u011fi tablo \u00fczerinde \u00e7al\u0131\u015fmas\u0131 sonucunda ortaya \u00e7\u0131kar. Bu durum, veritaban\u0131n\u0131n tutarl\u0131l\u0131\u011f\u0131n\u0131 ve g\u00fcvenilirli\u011fini tehlikeye atabilir. Bu makalede, bu hatan\u0131n nedenlerini, nas\u0131l te\u015fhis edilece\u011fini ve farkl\u0131 \u00e7\u00f6z\u00fcm y\u00f6ntemlerini detayl\u0131 olarak ele alaca\u011f\u0131z.\" \/>\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\/oracle-sqlde-mutating-trigger-hatasi-cozumu\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Oracle SQL&#039;de Mutating Trigger Hatas\u0131 \u00c7\u00f6z\u00fcm\u00fc\" \/>\n<meta property=\"og:description\" content=\"Oracle veritabanlar\u0131nda s\u0131k kar\u015f\u0131la\u015f\u0131lan bir hata t\u00fcr\u00fc olan &quot;mutating trigger&quot; hatas\u0131, tetikleyicinin (trigger) ayn\u0131 anda hem okudu\u011fu hem de de\u011fi\u015ftirdi\u011fi tablo \u00fczerinde \u00e7al\u0131\u015fmas\u0131 sonucunda ortaya \u00e7\u0131kar. Bu durum, veritaban\u0131n\u0131n tutarl\u0131l\u0131\u011f\u0131n\u0131 ve g\u00fcvenilirli\u011fini tehlikeye atabilir. 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Bu durum, veritaban\u0131n\u0131n tutarl\u0131l\u0131\u011f\u0131n\u0131 ve g\u00fcvenilirli\u011fini tehlikeye atabilir. 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