{"id":8384,"date":"2021-08-18T16:35:31","date_gmt":"2021-08-18T13:35:31","guid":{"rendered":"https:\/\/www.limonhost.net\/makaleler\/?p=8384"},"modified":"2021-12-08T15:57:17","modified_gmt":"2021-12-08T12:57:17","slug":"sql-nedir","status":"publish","type":"post","link":"https:\/\/www.limonhost.net\/makaleler\/genel\/sql-nedir\/","title":{"rendered":"SQL Nedir, Ne \u0130\u015fe Yarar? SQL Komutlar\u0131 Nelerdir?"},"content":{"rendered":"<h2>SQL Nedir?<\/h2>\n<p>SQL (Structured Query Language), T\u00fcrk\u00e7e anlam\u0131yla &#8220;Yap\u0131land\u0131r\u0131lm\u0131\u015f Sorgu Dili&#8221; manas\u0131na gelen bir programlama sistemidir. IBM taraf\u0131ndan geli\u015ftirilmi\u015ftir. Esasen tam olarak bir programla dili olmasa da, veritabanlar\u0131 \u00fczerinde i\u015flem yap\u0131lmas\u0131na olanak sa\u011flayan bir alt dildir. Yaln\u0131zca veritabanlar\u0131 \u00fczerinde \u00e7al\u0131\u015fabilir. Mevcut veritabanlar\u0131na bilgi ekleme, bilgi de\u011fi\u015ftirme, bilgi silme ve bilgi sorgulama i\u015flevleri i\u00e7in kullan\u0131l\u0131r.<\/p>\n<p>Veritaban\u0131 mant\u0131\u011f\u0131 programlama alan\u0131nda kullan\u0131ma ge\u00e7meye ba\u015flad\u0131\u011f\u0131 andan itibaren, tablolar \u00fczerinde \u00e7al\u0131\u015fabilen yaz\u0131l\u0131mlara ihtiya\u00e7 duyuldu. Bu do\u011frultuda g\u00fcn\u00fcm\u00fczde kullan\u0131lan ad\u0131yla SQL do\u011fmu\u015f oldu. SQL veritaban\u0131 y\u00f6netim sistemi, \u00f6nceki benzerlerinden farkl\u0131 olarak tek seferde birden fazla tabloya eri\u015fme ve bunlar \u00fczerinde i\u015flem yapma imkan\u0131 sa\u011flad\u0131. Bu sayede eski veritaban\u0131 i\u015fleme dilleri olan VSAM ve ISAM dillerinden \u00e7ok daha i\u015flevsel ve h\u0131zl\u0131 bir sistem yaratman\u0131n yolunu a\u00e7t\u0131. G\u00fcn\u00fcm\u00fczde halen sekt\u00f6r standart\u0131 olarak kabul edilir ve veritaban\u0131 \u00fczerinde \u00e7al\u0131\u015f\u0131lan hemen hemen her projede SQL kullan\u0131lmaktad\u0131r.<\/p>\n<h2>SQL Ne \u0130\u015fe Yarar?<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-8411\" src=\"https:\/\/cdn2.limonhost.net\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-1024x683.jpg\" alt=\"\" width=\"768\" height=\"512\" srcset=\"https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-1024x683.jpg 1024w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-300x200.jpg 300w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-1536x1024.jpg 1536w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-2048x1365.jpg 2048w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-1350x900.jpg 1350w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-1000x667.jpg 1000w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-800x533.jpg 800w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-600x400.jpg 600w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/piqsels.com-id-fnhnd-400x267.jpg 400w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<p>SQL, veritabanlar\u0131 \u00fczerinde i\u015flem yapmay\u0131 sa\u011flayan, s\u00f6z ve komut dizilerinden olu\u015fan bir dildir. SQL sayesinde veritaban\u0131 i\u00e7indeki tablolara veriler yaz\u0131labilir, veriler silinebilir, de\u011fi\u015ftirilebilir ya da listelenebilir. Veritabanlar\u0131 \u00fczerinde yap\u0131labilecek t\u00fcm i\u015flemler i\u00e7in SQL dili kullan\u0131l\u0131r. SQL ile verileri y\u00f6netebildi\u011finiz gibi, ba\u015ftan tasarlayabilirsiniz de. Veritaban\u0131 \u00fczerinde imkanlar\u0131 olduk\u00e7a \u00e7e\u015fitlidir.<\/p>\n<p>\u0130li\u015fkisel Veritaban\u0131 (Relational Database) tablolar ve bu tablolar aras\u0131ndaki ili\u015fkilere dayal\u0131 veritaban\u0131 modeli demektir. SQL, bu tip veritabanlar\u0131 \u00fczerinde i\u015flem yapabilir.<\/p>\n<p>Bir veritaban\u0131ndaki verilerin, belirli kriterler do\u011frultusunda \u00e7a\u011f\u0131r\u0131lmas\u0131na &#8220;Sorgu&#8221; ismi verilir. SQL sistemleri, veritabanlar\u0131 \u00fczerinde sorgular \u00e7al\u0131\u015ft\u0131rarak bir tak\u0131m raporlar ve \u00e7\u0131kt\u0131lar olu\u015fturmay\u0131 sa\u011flar. Da\u011f\u0131n\u0131k olarak bir veritaban\u0131 alt\u0131nda toplanm\u0131\u015f veri, bu sayede ihtiya\u00e7 duydu\u011funda derlenip toparlan\u0131r ve kullan\u0131c\u0131ya sunulur.<\/p>\n<h2>SQL Neden \u00d6nemlidir?<\/h2>\n<p>Veritaban\u0131 sat\u0131rlar ve s\u00fctunlardan olu\u015fur. Veriler bu sat\u0131r ve s\u00fctunlar\u0131n i\u00e7ine yaz\u0131l\u0131r.\u00a0 \u00a0SQL sayesinde, bu kalabal\u0131k veri y\u0131\u011f\u0131n\u0131 i\u00e7erisinde arad\u0131\u011f\u0131n\u0131z\u0131 bulmak ve verileri kategorize etmek kolayla\u015f\u0131r. Al\u0131nan sorgular, birbiri ard\u0131na dizilerek karma\u015f\u0131k fonksiyonlarla veriler filtrelenebilir. Veritaban\u0131 i\u00e7erisindeki bir veriye eri\u015fmek pratik ve kullan\u0131\u015fl\u0131 hale gelir.<\/p>\n<p>SQL g\u00fcvenlik katmanlar\u0131na da sahiptir. Tablolara eri\u015febilecek ve tablolar \u00fczerinde i\u015flem yapabilecek kullan\u0131c\u0131lar belirlenebildi\u011fi i\u00e7in, sadece sorgu yapabilecek ya da verileri de\u011fi\u015ftirebilecek ayr\u0131 ayr\u0131 kullan\u0131c\u0131lar olu\u015fturulabilir.<\/p>\n<p>Web sunucularda kullan\u0131lan veritabanlar\u0131 \u00fczerinde SQL ile veri i\u015flenebilir. Bu verilerin do\u011fru ve d\u00fczenli olmas\u0131, web site h\u0131z\u0131n\u0131z\u0131 da etkileyecektir. <a href=\"https:\/\/www.limonhost.net\/makaleler\/nasil-yaparim\/wordpress-ile-kurulan-bir-site-nasil-optimize-edilir\/\">WordPress Site Optimizasyonu<\/a> gibi konularda, site kodlar\u0131n\u0131zda \u00e7al\u0131\u015fan SQL komutlar\u0131 \u00fczerinde \u00e7al\u0131\u015fma yapmak fayda sa\u011flayacakt\u0131r. Yine web sitenizde kulland\u0131\u011f\u0131n\u0131z veritaban\u0131na d\u0131\u015fardan yetkisiz eri\u015fimi engellemek i\u00e7in <a href=\"https:\/\/www.limonhost.net\/makaleler\/genel\/htaccess-nedir-nasil-olusturulur\/\">.htaccess dosyas\u0131<\/a>nda buna uygun g\u00fcvenlik sat\u0131rlar\u0131n\u0131 ekleyebilirsiniz.<\/p>\n<h2>SQL Server Kurulumu<\/h2>\n<p>SQL Server, sunucular i\u00e7erisinde tablolar olu\u015fturmaya ve y\u00f6netmeye olanak sa\u011flayan programd\u0131r. \u00d6zellikli sunucularda \u00e7al\u0131\u015faca\u011f\u0131 gibi, t\u00fcm bilgisayarlara kurulabilir. Linux, Docker, Windows, Azure, AWS gibi farkl\u0131 altyap\u0131lar \u00fczerinde gerek yerel, gerekse Bulut Sunucularda kullan\u0131m imkan\u0131 bulunmaktad\u0131r.<\/p>\n<p>Windows i\u015fletim sistemlerinde MSSQL ismi verilen &#8220;Microsoft SQL Server&#8221; kullan\u0131labilir. \u00c7e\u015fitli lisanslama modelleri ve buna ba\u011fl\u0131 \u00fccretleri olsa da\u00a0 &#8220;SQL Express&#8221; ismi verilen \u00fccretsiz ve limitli \u00f6zelliklere sahip bir s\u00fcr\u00fcm\u00fc de bulunur. K\u00fc\u00e7\u00fck projeler ve web siteleri i\u00e7in SQL Express s\u00fcr\u00fcm\u00fc yeterli olabilir.<\/p>\n<p>Windows i\u015fletim sistemlerinde MSSQL kurulumu i\u00e7in SQL kurulum y\u00f6neticisini indirmeli ve \u00e7al\u0131\u015ft\u0131rmal\u0131s\u0131n\u0131z. <a href=\"https:\/\/www.microsoft.com\/tr-tr\/sql-server\/sql-server-downloads\">https:\/\/www.microsoft.com\/tr-tr\/sql-server\/sql-server-downloads<\/a> adresi \u00fczerinden SQL kurulum dosyas\u0131 indirilebilir. Dosya indirildikten sonra \u00e7al\u0131\u015ft\u0131rd\u0131\u011f\u0131n\u0131zda kar\u015f\u0131n\u0131za baz\u0131 se\u00e7enekler \u00e7\u0131kacakt\u0131r.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-8400\" src=\"https:\/\/cdn2.limonhost.net\/wp-content\/uploads\/2021\/07\/sql_setup1-1024x817.jpg\" alt=\"\" width=\"768\" height=\"613\" srcset=\"https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup1-1024x817.jpg 1024w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup1-300x239.jpg 300w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup1-1000x798.jpg 1000w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup1-800x638.jpg 800w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup1-600x479.jpg 600w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup1-400x319.jpg 400w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup1.jpg 1043w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<p>Basic; varsay\u0131lan konfig\u00fcrasyonla SQL Server kurulumu yapman\u0131z\u0131 sa\u011flar. Basic se\u00e7ene\u011fi bir \u00e7ok proje i\u00e7in yeterli olabilir. Custom se\u00e7ene\u011finde, varsay\u0131lan ayarlar d\u0131\u015f\u0131nda\u00a0 SQL sunucunun \u00e7al\u0131\u015faca\u011f\u0131 dizini se\u00e7ebilirsiniz. C:\\ d\u0131\u015f\u0131nda bir diske SQL kurmak i\u00e7in kullan\u0131labilir. SQL yakla\u015f\u0131k olarak 7GB&#8217;a kadar alana ihtiya\u00e7 duyabilir. Kurulum yapt\u0131\u011f\u0131n\u0131z yerde en az bu kadar alan olmas\u0131na dikkat etmeniz gerekir. Download Media; se\u00e7ene\u011fi ise kuurlum dosyas\u0131n\u0131n tamam\u0131m\u0131 bilgisayar\u0131n\u0131za kaydetmenizi sa\u011flar. Bu sayede kurulum dosyas\u0131n\u0131, internet ba\u011flant\u0131s\u0131 olmayan farkl\u0131 bir bilgisayara ta\u015f\u0131yarak kurulum yapabilirsiniz.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-8401\" src=\"https:\/\/cdn2.limonhost.net\/wp-content\/uploads\/2021\/07\/sql_setup2-1024x814.jpg\" alt=\"\" width=\"768\" height=\"611\" srcset=\"https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup2-1024x814.jpg 1024w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup2-300x239.jpg 300w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup2-1000x795.jpg 1000w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup2-800x636.jpg 800w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup2-600x477.jpg 600w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup2-400x318.jpg 400w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/sql_setup2.jpg 1040w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<p>Kurulum tipini se\u00e7tikten sonra &#8220;Install&#8221; butonuna basmak yeterli olacakt\u0131r.<\/p>\n<p>SQL sunucu kurdu\u011funuzda, komutlar \u00fczerinden SQL tablonuz \u00fczerinde i\u015flem yapabilirsiniz. Fakat tablolar\u0131n bir g\u00f6rsel halinde g\u00f6r\u00fcnt\u00fclenmesi ve SQL Server&#8217;\u0131n y\u00f6netilebilmesi i\u00e7in kullanabilece\u011finiz uygulamalar da bulunmaktad\u0131r. MSSQL i\u00e7in &#8220;SQL Server Management Studio&#8221; uygulamas\u0131 kullan\u0131labilir. Bu uygulama sayesinde veritaban\u0131 i\u00e7indeki tablolar\u0131n\u0131 g\u00f6rebilir, de\u011fi\u015ftirebilir ve kullan\u0131c\u0131 olu\u015fturmak, kullan\u0131c\u0131 yetkilerini d\u00fczenlemek gibi bir \u00e7ok i\u015flemi yapabilirsiniz.<\/p>\n<p>SQL Server Management Studio program\u0131n\u0131 indirmek i\u00e7in https:\/\/docs.microsoft.com\/en-us\/sql\/ssms\/download-sql-server-management-studio-ssms?view=sql-server-ver15 ba\u011flant\u0131s\u0131n\u0131 kullanabilirsiniz. SQL Server kurulumuna benzer bir \u015fekilde kurulabilir. SQL Server Management Studio program\u0131 kurulduktan sonra SQL Server kurarken belirlenen &#8220;sa&#8221; kullan\u0131c\u0131 ad\u0131 ve \u015fifresi ile SQL Server&#8217;a ba\u011flant\u0131 kurulabilir.<\/p>\n<h2>SQL Veritaban\u0131 Kullanman\u0131n Avantajlar\u0131<\/h2>\n<p>Bir veritaban\u0131 \u00fczerinde \u00e7al\u0131\u015fman\u0131n makul ve h\u0131zl\u0131 yolu SQL veritaban\u0131 kullanmaktad\u0131r. Lisanslar\u0131 her zaman \u00fccretli de\u011fildir. Bir \u00e7ok SQL y\u00f6netim sistemi \u00fccretsiz olarak kurulabilir ve hemen \u00fczerinde \u00e7al\u0131\u015fmaya ba\u015flanabilir. \u00d6zellikle k\u00fc\u00e7\u00fck projeler ve bir veritaban\u0131 y\u00f6netim sisteminin h\u0131zl\u0131ca devreye al\u0131nmas\u0131 gereken durumlarda s\u00fcreci h\u0131zland\u0131racakt\u0131r.<\/p>\n<p>Kullan\u0131m\u0131 ve \u00f6\u011frenmesi nispeten kolay<\/p>\n<h2>SQL Veritaban\u0131n\u0131n Kullan\u0131m Alanlar\u0131<\/h2>\n<p>SQL\u2018 in temel kullan\u0131m amac\u0131 verileri d\u00fczenli bir \u015fekilde saklamak ve istenildi\u011fi anda, istenilen veriyi h\u0131zl\u0131ca geri getirmektir. Bu sebeple SQL, \u00f6l\u00e7e\u011fine bakmaks\u0131z\u0131n hemen hemen t\u00fcm veritaban\u0131 yap\u0131lar\u0131nda kullan\u0131labilir. Daha b\u00fcy\u00fck \u00f6l\u00e7ekli Bankalar, Hastaneler, Devlet kurumlar\u0131 gibi \u00e7ok say\u0131da verinin ayn\u0131 anda i\u015flenebildi\u011fi ortamlarda tercih edilir. Ayn\u0131 zamanda web sunucularda, web sitenizde kullanmak \u00fczere haz\u0131rlad\u0131\u011f\u0131n\u0131z tablolar\u0131n i\u015flenmesi ve\u00a0 y\u00f6netilmesinde kullan\u0131lacakt\u0131r.<\/p>\n<p>Veritaban\u0131 kullan\u0131lmad\u0131\u011f\u0131 durumlarda, programlar verileri anl\u0131k olarak i\u015fler. Baz\u0131 durumlarda k\u0131sa s\u00fcreli eskiye d\u00f6n\u00fc\u015f m\u00fcmk\u00fcn olsa da, kapsaml\u0131 \u015fekilde geriye do\u011fru takip etme ya da eski veriler \u00fczerinden bir e\u015fle\u015ftirme yapma \u015fans\u0131 olmaz. Geriye do\u011fru \u00fcretilen verinin takibi ve yeniden sorgulanmas\u0131 gereken hallerde veritabanlar\u0131, veritabanlar\u0131n\u0131 y\u00f6netmek i\u00e7in de SQL kullan\u0131labilir.<\/p>\n<h2>SQL Komutlar\u0131<\/h2>\n<p><img decoding=\"async\" class=\"aligncenter size-large wp-image-8406\" src=\"https:\/\/cdn2.limonhost.net\/wp-content\/uploads\/2021\/07\/data-5933101_1280-1024x768.jpg\" alt=\"\" width=\"768\" height=\"576\" srcset=\"https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/data-5933101_1280-1024x768.jpg 1024w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/data-5933101_1280-300x225.jpg 300w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/data-5933101_1280-1200x900.jpg 1200w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/data-5933101_1280-1000x750.jpg 1000w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/data-5933101_1280-800x600.jpg 800w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/data-5933101_1280-600x450.jpg 600w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/data-5933101_1280-400x300.jpg 400w, https:\/\/www.limonhost.net\/makaleler\/wp-content\/uploads\/2021\/07\/data-5933101_1280.jpg 1280w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/p>\n<p>SQL komut dilinde temel olarak Create Table, Alter Table, Drop Table, Truncate Table, Create View, Drop View, Create Index, Drop Index gibi veritan\u0131mlama komutlar\u0131, Select, Update, Delete, Insert gibi veri i\u015fleme komutlar\u0131 bulunur. Bu SQL komutlar\u0131, SQL dili i\u00e7erisindeki \u00e7e\u015fitli deyimlerle birlikte kullan\u0131ld\u0131\u011f\u0131nda hem veriyi \u00fcretmeye\/d\u00fczenlemeye hem de &#8220;Query&#8221; ismi verilen sorgulara yaratmay\u0131 sa\u011flar\u0131.<\/p>\n<p>\u00d6rnek olarak SQL komutlar\u0131 a\u015fa\u011f\u0131daki gibidir;<\/p>\n<p><strong>SELECT model, markalar FROM otomobiller WHERE modely\u0131l\u0131 = &#8216;2021&#8217;<\/strong> sorgusu Otomobiller tablosu i\u00e7indeki 2021 y\u0131l\u0131na ait model ve markalar\u0131 g\u00f6sterecektir.<\/p>\n<p><strong>INSERT INTO otomobiller VALUES (, &#8216;xxx&#8217;, , &#8216;2021&#8217;<\/strong>) komutu otomobiller tablosuna xxx marka ve 2021 model y\u0131l\u0131 i\u00e7eri\u011fiyle yeni bir sat\u0131r olu\u015fturur.<\/p>\n<p><strong>DELETE FROM otomobiller WHERE modelyili = &#8216;2021&#8217;<\/strong> komutu otomobiller tablosunda 2021 model y\u0131l\u0131na sahip t\u00fcm sat\u0131rlar\u0131 silecektir.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>SQL Nedir? SQL (Structured Query Language), T\u00fcrk\u00e7e anlam\u0131yla &#8220;Yap\u0131land\u0131r\u0131lm\u0131\u015f Sorgu Dili&#8221; manas\u0131na gelen bir programlama sistemidir. IBM taraf\u0131ndan geli\u015ftirilmi\u015ftir. Esasen tam olarak bir programla dili olmasa da, veritabanlar\u0131 \u00fczerinde i\u015flem yap\u0131lmas\u0131na olanak sa\u011flayan bir alt dildir. Yaln\u0131zca veritabanlar\u0131 \u00fczerinde \u00e7al\u0131\u015fabilir. Mevcut veritabanlar\u0131na bilgi ekleme, bilgi de\u011fi\u015ftirme, bilgi silme ve bilgi sorgulama i\u015flevleri i\u00e7in kullan\u0131l\u0131r. Veritaban\u0131 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":8405,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.11 (Yoast SEO v21.8.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SQL Nedir, Ne \u0130\u015fe Yarar? 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