{"id":14464,"date":"2025-08-15T06:34:37","date_gmt":"2025-08-15T03:34:37","guid":{"rendered":"https:\/\/www.hosting.com.tr\/blog\/?p=14464"},"modified":"2025-08-15T06:34:37","modified_gmt":"2025-08-15T03:34:37","slug":"veri-tabani-optimizasyonu","status":"publish","type":"post","link":"https:\/\/www.hosting.com.tr\/blog\/veri-tabani-optimizasyonu\/","title":{"rendered":"Veri Taban\u0131 Optimizasyonu: Yava\u015f \u00c7al\u0131\u015fan Sorgular\u0131 H\u0131zland\u0131rma Teknikleri"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Veri taban\u0131 performans\u0131n\u0131 h\u0131zland\u0131rma, g\u00fcn\u00fcm\u00fcz\u00fcn dinamik teknoloji ortam\u0131nda rakiplerin \u00f6n\u00fcne ge\u00e7menin anahtar\u0131d\u0131r. \u0130\u015fletmelerin ger\u00e7ek zamanl\u0131 verilere ve kesintisiz uygulama i\u015flevselli\u011fine b\u00fcy\u00fck \u00f6l\u00e7\u00fcde g\u00fcvenmesi nedeniyle, veri taban\u0131 performans\u0131n\u0131 optimize etmek her zamankinden daha \u00f6nemlidir. \u0130ster bir \u00e7evrimi\u00e7i ma\u011faza, ister bir mobil uygulama veya b\u00fcy\u00fck \u00f6l\u00e7ekli bir kurumsal veri ambar\u0131 i\u015fletiyor olun, veri taban\u0131n\u0131z\u0131n en iyi \u015fekilde \u00e7al\u0131\u015fmas\u0131n\u0131 sa\u011flamak \u00e7ok \u00f6nemlidir.<\/span><\/p>\n<p><a href=\"https:\/\/moldstud.com\/articles\/p-solving-the-puzzle-of-poor-performance-a-guide-to-sql-tuning-for-developers\"><span style=\"font-weight: 400;\">Yava\u015f veri taban\u0131 sorgular\u0131<\/span><\/a><span style=\"font-weight: 400;\">, uygulama darbo\u011fazlar\u0131n\u0131n ba\u015fl\u0131ca nedenleri aras\u0131nda yer al\u0131r ve performans sorunlar\u0131n\u0131n neredeyse %70&#8217;ini olu\u015fturur. Bu nedenle, h\u0131zl\u0131 ve g\u00fcvenilir kullan\u0131c\u0131 deneyimleri sunmak isteyen i\u015fletmeler i\u00e7in sorgu optimizasyonu bir \u00f6ncelik olmal\u0131d\u0131r.<\/span><\/p>\n<h2 id=\"veri-tabani-performansi-nedir\">Veri Taban\u0131 Performans\u0131 Nedir?<\/h2>\n<p><span style=\"font-weight: 400;\">Veri taban\u0131 performans\u0131, bir veri taban\u0131 sisteminin sorgu, g\u00fcncelleme ve veri alma gibi i\u015flemleri tamamlama etkinli\u011fini ifade eder. Daha basit bir ifadeyle, veri taban\u0131n\u0131z\u0131n i\u015fini ne kadar h\u0131zl\u0131 ve verimli bir \u015fekilde yapabildi\u011finin bir \u00f6l\u00e7\u00fcs\u00fcd\u00fcr. \u0130yi performans, uygulamalar\u0131n\u0131z\u0131n sorunsuz \u00e7al\u0131\u015fmas\u0131n\u0131, sorgular\u0131n an\u0131nda sonu\u00e7 vermesini ve donan\u0131m kaynaklar\u0131n\u0131zdan en iyi \u015fekilde yararlanman\u0131z\u0131 sa\u011flar.<\/span><\/p>\n<p><b>\u0130zlenmesi Gereken \u00d6nemli Metrikler<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Gecikme S\u00fcresi: <\/b><span style=\"font-weight: 400;\">Gecikme s\u00fcresi, tek bir veri iste\u011finin kaynaktan hedefe gidip geri d\u00f6nmesi i\u00e7in ge\u00e7en s\u00fcredir. Daha d\u00fc\u015f\u00fck gecikme s\u00fcresi, daha h\u0131zl\u0131 veri al\u0131m\u0131 anlam\u0131na gelir.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Verim: <\/b><span style=\"font-weight: 400;\">Verim, bir sistemin belirli bir s\u00fcrede ka\u00e7 birim bilgi i\u015fleyebilece\u011fini \u00f6l\u00e7er. Daha y\u00fcksek verim, veri taban\u0131n\u0131z\u0131n ayn\u0131 anda daha fazla g\u00f6revi ger\u00e7ekle\u015ftirebilece\u011fi anlam\u0131na gelir.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Kaynak kullan\u0131m\u0131: <\/b><span style=\"font-weight: 400;\">Kaynak kullan\u0131m\u0131, CPU kullan\u0131m\u0131, bellek t\u00fcketimi ve disk G\/\u00c7&#8217;yi i\u00e7erir. Bunlar\u0131 optimum s\u0131n\u0131rlar i\u00e7inde tutmak, veri taban\u0131n\u0131z\u0131n verimli bir \u015fekilde \u00e7al\u0131\u015fmas\u0131 i\u00e7in yeterli alana sahip olmas\u0131n\u0131 sa\u011flar.<\/span><\/li>\n<\/ul>\n<p><b>D\u00fc\u015f\u00fck Performans\u0131n Belirtileri<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Yava\u015f sorgu yan\u0131tlar\u0131:<\/b><span style=\"font-weight: 400;\"> Sorgular\u0131n\u0131z\u0131n sonu\u00e7lar\u0131 d\u00f6nd\u00fcrmesi normalden daha uzun s\u00fcr\u00fcyorsa, bu performans sorunlar\u0131n\u0131n bariz bir i\u015faretidir.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Y\u00fcksek CPU kullan\u0131m\u0131:<\/b><span style=\"font-weight: 400;\"> S\u00fcrekli y\u00fcksek CPU kullan\u0131m\u0131, veri taban\u0131n\u0131z\u0131n kendisine verilen g\u00f6revleri yerine getirmekte zorland\u0131\u011f\u0131n\u0131 g\u00f6sterebilir.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u0131k s\u0131k ya\u015fanan kilitlenmeler:<\/b><span style=\"font-weight: 400;\"> Bunlar, iki veya daha fazla g\u00f6rev birbirini kal\u0131c\u0131 olarak engelledi\u011finde ortaya \u00e7\u0131kar ve durma noktas\u0131na yol a\u00e7ar. S\u0131k s\u0131k ya\u015fanan kilitlenmeler, veri taban\u0131 i\u015flemlerinde verimsizli\u011fin bir i\u015faretidir.<\/span><\/li>\n<\/ul>\n<p><b>Bellek yetersizli\u011fi hatalar\u0131: <\/b><span style=\"font-weight: 400;\">\u0130\u015flemler s\u0131ras\u0131nda bellek yetersizli\u011fi, veri taban\u0131n\u0131n kaynaklar\u0131n\u0131 verimli bir \u015fekilde kullanmad\u0131\u011f\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n<h2 id=\"veri-tabani-optimizasyonu-nedir\">Veri Taban\u0131 Optimizasyonu Nedir?<\/h2>\n<p><span style=\"font-weight: 400;\">Veri taban\u0131 optimizasyonu, bir veri taban\u0131 sisteminin performans\u0131n\u0131 ve verimlili\u011fini iyile\u015ftirme s\u00fcrecidir. Bu s\u00fcre\u00e7, veri taban\u0131n\u0131n yap\u0131s\u0131n\u0131, sorgular\u0131n\u0131 ve i\u015flemlerini analiz ederek optimize edilebilecek alanlar\u0131 belirlemeyi i\u00e7erir. Veri taban\u0131n\u0131 optimize ederek, i\u015fletmeler daha h\u0131zl\u0131 veri eri\u015fimi, daha az kaynak kullan\u0131m\u0131 ve genel sistem performans\u0131nda iyile\u015fme sa\u011flayabilir. Veri taban\u0131 optimizasyonu, analiz ve raporlama i\u00e7in zaman\u0131nda ve do\u011fru veriler sa\u011flayarak veriye dayal\u0131 karar vermeyi m\u00fcmk\u00fcn k\u0131lan \u00f6nemli bir rol oynar.<\/span><\/p>\n<h2 id=\"veri-tabani-optimizasyonu-neden-onemlidir\">Veri Taban\u0131 Optimizasyonu Neden \u00d6nemlidir?<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-14466\" src=\"https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir.jpeg\" alt=\"\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir.jpeg 1200w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir-300x169.jpeg 300w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir-1024x576.jpeg 1024w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir-768x432.jpeg 768w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir-380x214.jpeg 380w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir-550x309.jpeg 550w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir-800x450.jpeg 800w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/veri-tabani-optimizasyonu-neden-onemlidir-1160x653.jpeg 1160w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Veri taban\u0131 optimizasyonu, bir veri taban\u0131 sisteminin verimli ve etkili performans\u0131n\u0131 sa\u011flamak i\u00e7in \u00e7ok \u00f6nemli bir rol oynar. Veri taban\u0131n\u0131 optimize ederek, i\u015fletmeler daha h\u0131zl\u0131 sorgu y\u00fcr\u00fctme, geli\u015fmi\u015f \u00f6l\u00e7eklenebilirlik ve daha az kaynak t\u00fcketimi elde edebilir. Veri g\u00fcvenli\u011fi, veri taban\u0131 optimizasyonunun bir ba\u015fka \u00f6nemli y\u00f6n\u00fcd\u00fcr, \u00e7\u00fcnk\u00fc hassas verileri yetkisiz eri\u015fim veya ihlallerden korumak i\u00e7in \u00f6nlemler al\u0131nmas\u0131n\u0131 i\u00e7erir. Ayr\u0131ca, iyi optimize edilmi\u015f bir veri taban\u0131, sorgulara ve i\u015flemlere h\u0131zl\u0131 ve do\u011fru yan\u0131tlar sa\u011flayarak genel kullan\u0131c\u0131 deneyimini iyile\u015ftirebilir. Bu nedenle, veri taban\u0131 sisteminin performans\u0131n\u0131 ve g\u00fcvenilirli\u011fini en \u00fcst d\u00fczeye \u00e7\u0131karmak i\u00e7in veri taban\u0131 optimizasyonuna zaman ve \u00e7aba harcamak \u00e7ok \u00f6nemlidir.<\/span><\/p>\n<h2 id=\"veri-tabani-optimizasyonunda-yavas-calisan-sorgular\">Veri Taban\u0131 Optimizasyonunda Yava\u015f \u00c7al\u0131\u015fan Sorgular<\/h2>\n<p><span style=\"font-weight: 400;\">Yava\u015f \u00e7al\u0131\u015fan sorgular, veri taban\u0131 performans sorunlar\u0131n\u0131n en yayg\u0131n nedenlerinden biridir. Verimsiz SQL ifadeleri, uygun indeksleme eksikli\u011fi veya a\u015f\u0131r\u0131 karma\u015f\u0131k birle\u015ftirme i\u015flemleri, veri al\u0131m\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde geciktirebilir ve hem uygulama performans\u0131n\u0131 hem de kullan\u0131c\u0131 deneyimini olumsuz etkileyebilir. Yava\u015f sorgular ayr\u0131ca a\u015f\u0131r\u0131 CPU kullan\u0131m\u0131, bellek y\u00fck\u00fc ve genel sistem performans\u0131n\u0131n d\u00fc\u015fmesine neden olabilir.<\/span><\/p>\n<p><b>Ana Nedenler<\/b><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gerekli s\u00fctunlar\u0131 belirtmek yerine SELECT kullan\u0131lmas\u0131, gereksiz veri al\u0131m\u0131na yol a\u00e7ar.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Birden fazla tablo aras\u0131nda a\u015f\u0131r\u0131 karma\u015f\u0131k birle\u015fimler, y\u00fcr\u00fctme s\u00fcresini art\u0131r\u0131r.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Sorgu parametrele\u015ftirmesinin olmamas\u0131, verimsizli\u011fe ve SQL enjeksiyonu gibi g\u00fcvenlik a\u00e7\u0131klar\u0131na yol a\u00e7abilir.<\/span><\/li>\n<\/ul>\n<h2 id=\"sorgu-performansini-iyilestirme\">Sorgu Performans\u0131n\u0131 \u0130yile\u015ftirme<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-14470 aligncenter\" src=\"https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme.jpeg\" alt=\"\" width=\"1200\" height=\"675\" srcset=\"https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme.jpeg 1200w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme-300x169.jpeg 300w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme-1024x576.jpeg 1024w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme-768x432.jpeg 768w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme-380x214.jpeg 380w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme-550x309.jpeg 550w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme-800x450.jpeg 800w, https:\/\/www.hosting.com.tr\/blog\/wp-content\/uploads\/2025\/08\/sorgu-performansini-iyilestirme-1160x653.jpeg 1160w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>A\u015fa\u011f\u0131daki listede sorgu performans\u0131n\u0131 iyile\u015ftirmek i\u00e7in yap\u0131lmas\u0131 gereken ipu\u00e7lar\u0131n\u0131 bulabilirsiniz:<\/p>\n<h3 id=\"1-sorgu-optimizasyon-teknikleri\">1. Sorgu optimizasyon teknikleri<\/h3>\n<p><span style=\"font-weight: 400;\">Sorgu optimizasyon teknikleri, veri taban\u0131 sorgular\u0131n\u0131n performans\u0131n\u0131 iyile\u015ftirmek i\u00e7in gereklidir. Sorgular\u0131 optimize ederek, yan\u0131t s\u00fcrelerini azaltabilir ve genel veri taban\u0131 performans\u0131n\u0131 iyile\u015ftirebilirsiniz. Sorgu optimizasyonu i\u00e7in kullan\u0131labilecek \u00e7e\u015fitli teknikler vard\u0131r. \u00d6rne\u011fin, gereksiz birle\u015fimleri veya alt sorgular\u0131 ortadan kald\u0131rmak i\u00e7in sorgular\u0131 yeniden yazmak, veri al\u0131m\u0131n\u0131 h\u0131zland\u0131rmak i\u00e7in uygun dizinleri kullanmak ve karma\u015f\u0131k sorgulardaki i\u015flem s\u0131ras\u0131n\u0131 optimize etmek gibi. Ayr\u0131ca, veri taban\u0131 performans optimizasyon ara\u00e7lar\u0131n\u0131 kullanmak ve sorgular\u0131n y\u00fcr\u00fctme planlar\u0131n\u0131 izlemek, darbo\u011fazlar\u0131 belirlemeye ve sorgu performans\u0131n\u0131 optimize etmeye yard\u0131mc\u0131 olabilir. Bu teknikleri uygulayarak, veri taban\u0131n\u0131z\u0131n en iyi performans\u0131 g\u00f6stermesini ve h\u0131zl\u0131 ve verimli sorgu sonu\u00e7lar\u0131 sunmas\u0131n\u0131 sa\u011flayabilirsiniz.<\/span><\/p>\n<h3 id=\"2-veri-tabani-dizinlerini-etkili-bir-sekilde-kullanma\">2. Veri taban\u0131 dizinlerini etkili bir \u015fekilde kullanma<\/h3>\n<p><span style=\"font-weight: 400;\">Veri taban\u0131 dizinlerini etkili bir \u015fekilde kullanmak, sorgu performans\u0131n\u0131 iyile\u015ftirmek i\u00e7in \u00e7ok \u00f6nemlidir. Dizinler, veri taban\u0131 motorunun sorguyu kar\u015f\u0131lamak i\u00e7in gereken verileri h\u0131zl\u0131 bir \u015fekilde bulmas\u0131na yard\u0131mc\u0131 olur ve bu da daha h\u0131zl\u0131 yan\u0131t s\u00fcreleri sa\u011flar. Dizinler olu\u015ftururken, dizine eklenecek s\u00fctunlar\u0131 ve dizindeki s\u00fctunlar\u0131n s\u0131ras\u0131n\u0131 dikkatlice d\u00fc\u015f\u00fcnmek \u00f6nemlidir. Ayr\u0131ca, optimum performans sa\u011flamak i\u00e7in dizinlerin d\u00fczenli bak\u0131m\u0131 gereklidir. Bu, dizin kullan\u0131m\u0131n\u0131 izlemeyi, dizinleri yeniden olu\u015fturmay\u0131 veya yeniden d\u00fczenlemeyi ve veri ve sorgu modellerinin de\u011fi\u015fmesiyle birlikte dizin stratejisini periyodik olarak g\u00f6zden ge\u00e7irmeyi ve ayarlamay\u0131 i\u00e7erir.<\/span><\/p>\n<h3 id=\"3-onbellekleme-ve-sorgu-sonucu-optimizasyonu\">3. \u00d6nbellekleme ve sorgu sonucu optimizasyonu<\/h3>\n<p><span style=\"font-weight: 400;\">\u00d6nbellekleme ve sorgu sonucu optimizasyonu, veri taban\u0131 optimizasyonunda \u00e7ok \u00f6nemli tekniklerdir. \u00d6nbellekleme, s\u0131k eri\u015filen verilerin bellekte depolanmas\u0131n\u0131 ve pahal\u0131 disk I\/O i\u015flemlerine olan ihtiyac\u0131 azaltmay\u0131 i\u00e7erir. Sorgu sonucu optimizasyonu, sorgu y\u00fcr\u00fctme verimlili\u011fini art\u0131rmaya ve veri alma s\u00fcresini azaltmaya odaklan\u0131r. \u00d6nbellekleme, bellek i\u00e7i \u00f6nbellekler veya da\u011f\u0131t\u0131lm\u0131\u015f \u00f6nbellekler gibi \u00e7e\u015fitli stratejiler kullan\u0131larak uygulanabilir. Ayr\u0131ca, sorgu sonucu optimizasyon teknikleri aras\u0131nda sorgu yeniden yazma, sorgu plan\u0131 analizi ve indeksleme bulunur. Bu teknikleri uygulayarak, geli\u015ftiriciler veritaban\u0131 sistemlerinin performans\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131rabilirler.<\/span><\/p>\n<h3 id=\"4-joins-ve-alt-sorgularin-kullanimi\">4. JOINS ve alt sorgular\u0131n kullan\u0131m\u0131<\/h3>\n<p><span style=\"font-weight: 400;\">\u00c7o\u011fu zaman, veri taban\u0131 y\u00f6neticileri ve geli\u015ftiriciler, belirli bir ko\u015ful i\u00e7in birden fazla tablodan gerekli verileri almak i\u00e7in alt sorgular\u0131 rahatl\u0131kla kullan\u0131r. Alt sorgu kullanman\u0131n avantaj ve dezavantajlar\u0131n\u0131n fark\u0131nda de\u011filseniz, bu durum veri taban\u0131n\u0131zda bir\u00e7ok performans sorununa neden olabilir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Alt sorgular, \u00fcst sorgulara g\u00f6re \u00e7al\u0131\u015f\u0131r. Bu, her alt sorgunun, \u00fcst sorgunun y\u00fcr\u00fct\u00fclmesi tamamlanana kadar y\u00fcr\u00fct\u00fclmeyi bekleyece\u011fi anlam\u0131na gelir. Ayr\u0131ca, her alt sorgu, veri taban\u0131n\u0131zdaki bir tablonun tek bir sat\u0131r\u0131nda ana sorgunun \u00e7al\u0131\u015ft\u0131\u011f\u0131 kadar kez \u00e7al\u0131\u015f\u0131r. JOIN durumunda bu olmaz, \u00e7\u00fcnk\u00fc JOIN&#8217;deki iki sorgu tek bir sorgu gibi \u00e7al\u0131\u015f\u0131r.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Bu nedenle, daha h\u0131zl\u0131 sorgu yan\u0131t s\u00fcreleri i\u00e7in m\u00fcmk\u00fcn oldu\u011funca alt sorgular yerine JOIN&#8217;leri kullanmaya \u00e7al\u0131\u015fmal\u0131s\u0131n\u0131z.<\/span><\/p>\n<h3 id=\"5-procedure-analyse-komutunu-kullanin\">5. <b>PROCEDURE ANALYSE() komutunu kullan\u0131n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">MySQL, sorgular\u0131n\u0131za ekleyebilece\u011finiz yerle\u015fik bir PROCEDURE ANALYSE() komutuna sahiptir. Bu komut, sorgular\u0131n\u0131z\u0131 analiz etmeye yard\u0131mc\u0131 olur ve veri taban\u0131n\u0131zdaki s\u00fctunlar i\u00e7in daha iyi veri t\u00fcrleri ve boyutlar\u0131 \u00f6nerir. Bu da, bellek t\u00fcketimi a\u00e7\u0131s\u0131ndan genel tablo boyutunu azaltmak i\u00e7in s\u00fctunlar\u0131n\u0131zda yapabilece\u011finiz de\u011fi\u015fiklikleri anlaman\u0131za yard\u0131mc\u0131 olur. PROCEDURE ANALYSE() komutunu herhangi bir sorguda kullanabilir ve bu bilgileri veri taban\u0131n\u0131zdaki tablolar\u0131, s\u00fctunlar\u0131 ve alanlar\u0131 yeniden yap\u0131land\u0131rmak i\u00e7in kullanabilirsiniz.<\/span><\/p>\n<h3 id=\"6-toplu-islemler\">6. <b>Toplu \u0130\u015flemler<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Tek bir okuma, yazma, silme veya g\u00fcncelleme sorgusu, tek bir okuma, yazma, silme veya g\u00fcncelleme i\u015flemi ger\u00e7ekle\u015ftirmek istedi\u011finizde en h\u0131zl\u0131 \u015fekilde \u00e7al\u0131\u015f\u0131r. Ancak, ger\u00e7ek hayattaki uygulamalarda toplu i\u015flemler yayg\u0131n bir gerekliliktir.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Y\u00fcksek performansl\u0131 ve verimli bir veri taban\u0131, ba\u015fka bir sorgunun y\u00fcr\u00fct\u00fclmesini engellemeden birden fazla sorgunun ayn\u0131 anda y\u00fcr\u00fct\u00fclmesine izin verebilir. Bu, veri taban\u0131 sisteminize daha fazla e\u015fzamanl\u0131l\u0131k kontrol\u00fc sa\u011flar. Ancak, tek tek sorgular\u0131 \u00e7al\u0131\u015ft\u0131rmak \u00e7ok zaman al\u0131r. Ayn\u0131 g\u00fcncelleme veya silme i\u015flemini yapmak i\u00e7in bu sorgular\u0131 tek tek \u00e7al\u0131\u015ft\u0131rmak, veri taban\u0131 sisteminin genel e\u015fzamanl\u0131l\u0131\u011f\u0131n\u0131 azalt\u0131r. Bunun yerine, g\u00fcncelleme ve silme sorgular\u0131n\u0131z\u0131 toplu olarak \u00e7al\u0131\u015ft\u0131r\u0131p birlikte \u00e7al\u0131\u015ft\u0131rarak veri taban\u0131n\u0131z\u0131n e\u015fzamanl\u0131l\u0131\u011f\u0131n\u0131 art\u0131rabilirsiniz. Bu, daha h\u0131zl\u0131 y\u00fcr\u00fctme sa\u011flar ve di\u011fer sorgular\u0131n y\u00fcr\u00fct\u00fclmesi i\u00e7in yer b\u0131rakarak veritaban\u0131n\u0131za daha fazla e\u015fzamanl\u0131l\u0131k kazand\u0131r\u0131r.<\/span><\/p>\n<h3 id=\"7-not-null-ve-null-kullanimi\">7. NOT NULL ve NULL kullan\u0131m\u0131<\/h3>\n<p><span style=\"font-weight: 400;\">Geli\u015ftiriciler genellikle bir s\u00fctundaki NULL alanlar\u0131n\u0131 kontrol ederler. Ancak, varsay\u0131lan olarak NULL alan\u0131 NOT NULL alan\u0131ndan daha fazla bellek kaplar. Bu nedenle, bir s\u00fctunda veri olup olmad\u0131\u011f\u0131n\u0131 do\u011frulamak i\u00e7in sorgu \u00e7al\u0131\u015ft\u0131rman\u0131z gerekti\u011finde, sorguyu tersine \u00e7evirip NOT NULL kontrol\u00fcn\u00fc kullanabilirsiniz. NOT NULL s\u00fctunu daha az bellek kaplamakla kalmaz, NULL s\u00fctunlar\u0131na k\u0131yasla NOT NULL s\u00fctunlar\u0131 \u00fczerinde daha etkili indeksleme yap\u0131ld\u0131\u011f\u0131 i\u00e7in daha h\u0131zl\u0131d\u0131r.<\/span><\/p>\n<h2 id=\"sorgu-optimizasyon-ipuclari\">Sorgu Optimizasyon \u0130pu\u00e7lar\u0131<\/h2>\n<p><span style=\"font-weight: 400;\">En h\u0131zl\u0131 donan\u0131ma ve en g\u00fc\u00e7l\u00fc indeksleme stratejilerine sahip olsan\u0131z da, sorgular\u0131n\u0131z verimsizse, veri taban\u0131n\u0131z yine de zorlan\u0131r. Sorgu optimizasyonu yaln\u0131zca i\u015flemleri h\u0131zland\u0131rmakla kalmaz, ayn\u0131 zamanda onlar\u0131 daha ak\u0131ll\u0131 \u00e7al\u0131\u015ft\u0131rmakla ilgilidir.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>SELECT * Kullan\u0131m\u0131ndan Ka\u00e7\u0131n\u0131n:<\/b><span style=\"font-weight: 400;\"> T\u00fcm s\u00fctunlar\u0131 \u00e7ekmek pratik bir yol gibi g\u00f6r\u00fcnebilir, ancak performans a\u00e7\u0131s\u0131ndan olduk\u00e7a olumsuzdur. Bu y\u00fczden her zaman yaln\u0131zca ihtiyac\u0131n\u0131z olan s\u00fctunlar\u0131 se\u00e7in.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>EXPLAIN Komutu:<\/b><span style=\"font-weight: 400;\"> Veri taban\u0131n\u0131z\u0131n sorgular\u0131 nas\u0131l \u00e7al\u0131\u015ft\u0131rd\u0131\u011f\u0131n\u0131 g\u00f6rmek i\u00e7in EXPLAIN komutunu kullan\u0131n. Bu, tam tablo taramalar\u0131 gibi sorunlar\u0131 tespit etmenize yard\u0131mc\u0131 olur. Bu t\u00fcr sorunlar, do\u011fru indeksleme veya sorgu d\u00fczenlemeleri ile \u00f6nlenebilir.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>JOIN\u2019lar\u0131 Optimize Edin:<\/b><span style=\"font-weight: 400;\"> JOIN yap\u0131lan s\u00fctunlar\u0131n indeksli oldu\u011fundan emin olun. \u0130ndekslenmemi\u015f s\u00fctunlar \u00fczerinde yap\u0131lan JOIN i\u015flemleri, \u00f6zellikle b\u00fcy\u00fck tablolarda performans sorunlar\u0131na yol a\u00e7abilir.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Alt Sorgular\u0131 (Subquery) Az Kullan\u0131n:<\/b> Alt sorgular kullan\u0131\u015fl\u0131 olabilir, ancak \u00e7o\u011fu zaman verimsiz y\u00fcr\u00fctme planlar\u0131na neden olur. M\u00fcmk\u00fcn oldu\u011funda alt sorgular\u0131 JOIN veya CTE (Common Table Expression) olarak yeniden yazarak daha iyi performans elde edin.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"Veri taban\u0131 performans\u0131n\u0131 h\u0131zland\u0131rma, g\u00fcn\u00fcm\u00fcz\u00fcn dinamik teknoloji ortam\u0131nda rakiplerin \u00f6n\u00fcne ge\u00e7menin anahtar\u0131d\u0131r. \u0130\u015fletmelerin ger\u00e7ek zamanl\u0131 verilere ve kesintisiz&hellip;\n","protected":false},"author":20,"featured_media":14465,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"csco_singular_sidebar":"","csco_page_header_type":"","csco_appearance_grid":"","csco_page_load_nextpost":"","csco_post_video_location":[],"csco_post_video_location_hash":"","csco_post_video_url":"","csco_post_video_bg_start_time":0,"csco_post_video_bg_end_time":0,"footnotes":""},"categories":[357,346],"tags":[],"class_list":{"0":"post-14464","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-hosting","8":"category-yazilim-programlama","9":"cs-entry","10":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Veri Taban\u0131 Optimizasyonu: Yava\u015f \u00c7al\u0131\u015fan Sorgular\u0131 H\u0131zland\u0131rma Teknikleri - Hosting.com.tr<\/title>\n<meta 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