{"id":10,"date":"2026-05-20T22:33:17","date_gmt":"2026-05-20T19:33:17","guid":{"rendered":"https:\/\/blog.dynet.net\/?p=10"},"modified":"2026-05-20T22:33:17","modified_gmt":"2026-05-20T19:33:17","slug":"veri-tabani-optimizasyonu-yavas-sorgulari-hizlandirma-rehberi","status":"publish","type":"post","link":"https:\/\/blog.dynet.net\/?p=10","title":{"rendered":"Veri Taban\u0131 Optimizasyonu: Yava\u015f Sorgular\u0131 H\u0131zland\u0131rma Rehberi"},"content":{"rendered":"

Dijital d\u00fcnyada h\u0131z, kullan\u0131c\u0131 deneyiminin ve d\u00f6n\u00fc\u015f\u00fcm oranlar\u0131n\u0131n en kritik belirleyicisidir. Web sitenizin veya uygulaman\u0131z\u0131n h\u0131zl\u0131 \u00e7al\u0131\u015fmas\u0131 yaln\u0131zca \u00f6n y\u00fczdeki (frontend) kodlar\u0131n ba\u015far\u0131s\u0131na de\u011fil, arka planda d\u00f6nen veri taban\u0131 i\u015flemlerinin verimlili\u011fine de ba\u011fl\u0131d\u0131r. Kullan\u0131c\u0131 say\u0131n\u0131z artt\u0131k\u00e7a ve veri taban\u0131n\u0131z b\u00fcy\u00fcd\u00fck\u00e7e, ba\u015flang\u0131\u00e7ta fark edilmeyen k\u00fc\u00e7\u00fck aksakl\u0131klar b\u00fcy\u00fck performans krizlerine d\u00f6n\u00fc\u015febilir.<\/p>\n

E\u011fer uygulaman\u0131zda sayfalar ge\u00e7 y\u00fckleniyor, raporlar bir t\u00fcrl\u00fc tamamlanm\u0131yor veya sunucu kaynaklar\u0131n\u0131z durup dururken t\u00fckeniyorsa, muhtemelen yava\u015f \u00e7al\u0131\u015fan sorgularla kar\u015f\u0131 kar\u015f\u0131yas\u0131n\u0131z demektir. Bu yaz\u0131m\u0131zda, \u00f6zellikle web projelerinde s\u0131k\u00e7a tercih edilen MySQL \u00fczerinde durarak, veri taban\u0131 optimizasyonu<\/strong> ve mysql optimizasyon<\/strong> tekniklerini detayl\u0131ca ele alaca\u011f\u0131z.<\/p>\n

Veri Taban\u0131 Neden Yava\u015flar? Sorunun Kayna\u011f\u0131n\u0131 Bulmak<\/h2>\n

Optimizasyon s\u00fcrecinin ilk ad\u0131m\u0131, sorunun nerede oldu\u011funu do\u011fru tespit etmektir. Bir sorgunun yava\u015f \u00e7al\u0131\u015fmas\u0131n\u0131n arkas\u0131nda hatal\u0131 yaz\u0131lm\u0131\u015f SQL kodlar\u0131, eksik indeksler, yetersiz sunucu kaynaklar\u0131 veya yanl\u0131\u015f yap\u0131land\u0131r\u0131lm\u0131\u015f veri taban\u0131 ayarlar\u0131 yatabilir. Sorunu tespit etmek i\u00e7in \u015fu y\u00f6ntemleri kullanabilirsiniz:<\/p>\n

    \n
  • Slow Query Log (Yava\u015f Sorgu G\u00fcnl\u00fc\u011f\u00fc):<\/strong> MySQL \u00fczerinde belirli bir saniyenin (\u00f6rne\u011fin 1 saniye) \u00fczerinde s\u00fcren sorgular\u0131 kaydeden bu \u00f6zelli\u011fi aktif ederek i\u015fe ba\u015flayabilirsiniz.<\/li>\n
  • EXPLAIN Komutu:<\/strong> \u015e\u00fcpheli bir sorgunun \u00f6n\u00fcne EXPLAIN<\/code> yazarak \u00e7al\u0131\u015ft\u0131rd\u0131\u011f\u0131n\u0131zda, MySQL size bu sorguyu nas\u0131l \u00e7al\u0131\u015ft\u0131raca\u011f\u0131n\u0131, hangi indeksleri kullanaca\u011f\u0131n\u0131 ve ka\u00e7 sat\u0131r\u0131 tarayaca\u011f\u0131n\u0131 g\u00f6sterir.<\/li>\n<\/ul>\n
    \n

    Alt\u0131n Kural:<\/strong> Analiz etmedi\u011finiz \u015feyi optimize edemezsiniz. Bu nedenle her optimizasyon i\u015fleminden \u00f6nce mutlaka EXPLAIN<\/code> \u00e7\u0131kt\u0131s\u0131n\u0131 inceleyin.<\/p>\n<\/blockquote>\n

    MySQL Optimizasyon Teknikleri: Ad\u0131m Ad\u0131m H\u0131zlan\u0131n<\/h2>\n

    Performans\u0131 art\u0131rmak ve sunucu maliyetlerinizi d\u00fc\u015f\u00fcrmek i\u00e7in uygulayabilece\u011finiz en etkili teknikleri a\u015fa\u011f\u0131da bir araya getirdik.<\/p>\n

    1. Do\u011fru \u0130ndeksleme (Indexing) Stratejileri<\/h3>\n

    \u0130ndeksler, bir kitab\u0131n en arkas\u0131nda yer alan “fihrist” b\u00f6l\u00fcm\u00fc gibidir. Arad\u0131\u011f\u0131n\u0131z bir konuyu t\u00fcm kitab\u0131 sayfa sayfa okumak yerine fihristten bularak do\u011frudan ilgili sayfaya gitmenizi sa\u011flar. Veri taban\u0131nda da indeksler, sorgular\u0131n milyonlarca sat\u0131r aras\u0131ndan saniyeler i\u00e7inde sonu\u00e7 d\u00f6nd\u00fcrmesine yard\u0131mc\u0131 olur.<\/p>\n

    Nas\u0131l Yap\u0131l\u0131r?<\/strong><\/p>\n

      \n
    • WHERE<\/code>, JOIN<\/code>, ORDER BY<\/code> ve GROUP BY<\/code> ifadelerinde s\u0131k\u00e7a kulland\u0131\u011f\u0131n\u0131z s\u00fctunlara indeks ekleyin.<\/li>\n
    • Gereksiz indekslerden ka\u00e7\u0131n\u0131n. Her yeni indeks, veri ekleme (INSERT) ve g\u00fcncelleme (UPDATE) i\u015flemlerini yava\u015flat\u0131r.<\/li>\n
    • \u00c7oklu s\u00fctun aramalar\u0131nda Composite Index<\/strong> (Bile\u015fik \u0130ndeks) kullanmay\u0131 tercih edin.<\/li>\n<\/ul>\n

      2. “SELECT *” Kullan\u0131m\u0131ndan Ka\u00e7\u0131n\u0131n<\/h3>\n

      Yaz\u0131l\u0131mc\u0131lar aras\u0131nda olduk\u00e7a yayg\u0131n bir al\u0131\u015fkanl\u0131k olan SELECT * FROM tablo_adi<\/code> kullan\u0131m\u0131, performans\u0131 baltalayan en b\u00fcy\u00fck unsurlardan biridir. Bu komut, ihtiyac\u0131n\u0131z olmayan onlarca s\u00fctunu (b\u00fcy\u00fck metin alanlar\u0131, blob veriler vb.) belle\u011fe y\u00fckler ve a\u011f trafi\u011fini gereksiz yere me\u015fgul eder.<\/p>\n

      Bunun yerine, sadece ihtiyac\u0131n\u0131z olan s\u00fctunlar\u0131 a\u00e7\u0131k\u00e7a belirtin:<\/p>\n

      SELECT id, baslik, olusturma_tarihi FROM makaleler;<\/code><\/p>\n

      3. JOIN \u0130\u015flemlerini Optimize Edin<\/h3>\n

      \u0130li\u015fkisel veri tabanlar\u0131n\u0131n g\u00fcc\u00fc tablolalar\u0131 birbirine ba\u011flamaktan (JOIN) gelir. Ancak b\u00fcy\u00fck tablolarda yap\u0131lan hatal\u0131 JOIN i\u015flemleri sistemi kilitleyebilir.<\/p>\n

        \n
      • JOIN yap\u0131lan s\u00fctunlar\u0131n veri tiplerinin birebir ayn\u0131 olmas\u0131na dikkat edin.<\/li>\n
      • \u0130li\u015fkilendirilen s\u00fctunlar\u0131n her iki tabloda da indekslendi\u011finden emin olun.<\/li>\n
      • M\u00fcmk\u00fcnse alt sorgular (Subqueries) yerine JOIN kullanmay\u0131 tercih edin; \u00e7\u00fcnk\u00fc modern SQL motorlar\u0131 JOIN i\u015flemlerini \u00e7ok daha iyi optimize eder.<\/li>\n<\/ul>\n

        4. LIMIT Kullanarak Veri Boyutunu S\u0131n\u0131rland\u0131r\u0131n<\/h3>\n

        Kullan\u0131c\u0131ya sadece ilk 10 kayd\u0131 g\u00f6sterece\u011finiz bir sayfada, veri taban\u0131ndan 10.000 kayd\u0131 birden \u00e7ekmek b\u00fcy\u00fck bir kaynak israf\u0131d\u0131r. Sorgular\u0131n\u0131z\u0131n sonuna mutlaka LIMIT<\/code> ekleyerek \u00e7ekilecek veri miktar\u0131n\u0131 s\u0131n\u0131rland\u0131r\u0131n. Bu i\u015flem, \u00f6zellikle sayfalama (pagination) yap\u0131lar\u0131nda hayati \u00f6nem ta\u015f\u0131r.<\/p>\n

        Sunucu Seviyesinde Yap\u0131land\u0131rma ve \u00d6nbellekleme<\/h2>\n

        Yaz\u0131l\u0131msal iyile\u015ftirmelerin yan\u0131 s\u0131ra, MySQL sunucunuzun do\u011fru yap\u0131land\u0131r\u0131lmas\u0131 da performans\u0131 do\u011frudan etkiler. \u00d6zellikle InnoDB<\/strong> depolama motorunu kullan\u0131yorsan\u0131z, innodb_buffer_pool_size<\/code> parametresini sunucu RAM’inizin yakla\u015f\u0131k %50 ila %70’i aras\u0131nda bir de\u011fere ayarlamak, verilerin bellekte tutulmas\u0131n\u0131 sa\u011flayarak disk okuma i\u015flemlerini minimize eder.<\/p>\n

        Ayr\u0131ca, s\u0131k de\u011fi\u015fmeyen ancak \u00e7ok s\u0131k sorgulanan veriler i\u00e7in (\u00f6rne\u011fin kategori listeleri veya site ayarlar\u0131) uygulama seviyesinde Redis<\/strong> veya Memcached<\/strong> gibi \u00f6nbellekleme (caching) \u00e7\u00f6z\u00fcmlerini entegre etmek, veri taban\u0131n\u0131z\u0131n \u00fczerindeki y\u00fck\u00fc neredeyse s\u0131f\u0131ra indirecektir.<\/p>\n

        \u00d6zet ve Sonraki Ad\u0131mlar<\/h2>\n

        Veri taban\u0131 optimizasyonu tek seferlik bir g\u00f6rev de\u011fil, s\u00fcrekli devam eden bir s\u00fcre\u00e7tir. Do\u011fru indeksleme, optimize edilmi\u015f sorgular ve ak\u0131ll\u0131ca yap\u0131land\u0131r\u0131lm\u0131\u015f bir sunucu ile uygulaman\u0131z\u0131n h\u0131z\u0131n\u0131 katbekat art\u0131rabilirsiniz. Unutmay\u0131n, h\u0131zl\u0131 a\u00e7\u0131lan bir web sitesi sadece kullan\u0131c\u0131lar\u0131n\u0131z\u0131 mutlu etmekle kalmaz, arama motorlar\u0131nda (SEO) daha \u00fcst s\u0131ralara \u00e7\u0131kman\u0131za da yard\u0131mc\u0131 olur.<\/p>\n

        E\u011fer projenizde performans sorunlar\u0131 ya\u015f\u0131yor ve profesyonel bir mysql optimizasyon<\/strong> deste\u011fine ihtiya\u00e7 duyuyorsan\u0131z, bizimle hemen ileti\u015fime ge\u00e7ebilirsiniz. Uzman ekibimizle veri taban\u0131n\u0131z\u0131 analiz edelim, darbo\u011fazlar\u0131 giderelim ve sisteminizi en y\u00fcksek performansa ula\u015ft\u0131ral\u0131m!<\/p>\n","protected":false},"excerpt":{"rendered":"

        Veri taban\u0131n\u0131z yava\u015f m\u0131 \u00e7al\u0131\u015f\u0131yor? MySQL optimizasyon teknikleri ve pratik ipu\u00e7lar\u0131yla sorgular\u0131n\u0131z\u0131 h\u0131zland\u0131r\u0131n, sistem performans\u0131n\u0131z\u0131 zirveye ta\u015f\u0131y\u0131n.<\/p>\n","protected":false},"author":1,"featured_media":9,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9,10,8,11],"class_list":["post-10","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-genel","tag-mysql","tag-performans-optimizasyonu","tag-veri-tabani","tag-yazilim-gelistirme"],"_links":{"self":[{"href":"https:\/\/blog.dynet.net\/index.php?rest_route=\/wp\/v2\/posts\/10","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.dynet.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.dynet.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.dynet.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.dynet.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10"}],"version-history":[{"count":0,"href":"https:\/\/blog.dynet.net\/index.php?rest_route=\/wp\/v2\/posts\/10\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.dynet.net\/index.php?rest_route=\/wp\/v2\/media\/9"}],"wp:attachment":[{"href":"https:\/\/blog.dynet.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.dynet.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.dynet.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}