{"id":41272,"date":"2026-03-20T17:00:52","date_gmt":"2026-03-20T14:00:52","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/?p=41272"},"modified":"2026-03-20T17:00:52","modified_gmt":"2026-03-20T14:00:52","slug":"sqlite-nasil-ve-ne-zaman-kullanilmali","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/sqlite-nasil-ve-ne-zaman-kullanilmali\/","title":{"rendered":"SQLite: Nas\u0131l ve Ne Zaman Kullan\u0131lmal\u0131?"},"content":{"rendered":"

<\/p>\n

SQLite: Nas\u0131l ve Ne Zaman Kullan\u0131lmal\u0131?<\/h2>\n

Veri depolama, modern yaz\u0131l\u0131m geli\u015ftirmenin temel ta\u015flar\u0131ndan biridir. G\u00fcn\u00fcm\u00fczde bir\u00e7ok farkl\u0131 veritaban\u0131 \u00e7\u00f6z\u00fcm\u00fc bulunmakla birlikte, her birinin kendine \u00f6zg\u00fc avantajlar\u0131 ve dezavantajlar\u0131 vard\u0131r. Bu \u00e7\u00f6z\u00fcmler aras\u0131nda, \u00f6zellikle g\u00f6m\u00fcl\u00fc sistemler, mobil uygulamalar ve masa\u00fcst\u00fc yaz\u0131l\u0131mlar\u0131 i\u00e7in \u00f6ne \u00e7\u0131kan, benzersiz bir konuma sahip olan bir veritaban\u0131 y\u00f6netim sistemi bulunmaktad\u0131r: SQLite. Bu makalede, SQLite’\u0131n ne oldu\u011funu, temel \u00f6zelliklerini, hangi senaryolarda kullan\u0131lmas\u0131 gerekti\u011fini ve hangi durumlarda ka\u00e7\u0131n\u0131lmas\u0131 gerekti\u011fini detayl\u0131 bir \u015fekilde inceleyece\u011fiz. Ayr\u0131ca, SQLite’\u0131 nas\u0131l kullanaca\u011f\u0131n\u0131za dair pratik bilgiler ve performans ipu\u00e7lar\u0131 da sunaca\u011f\u0131z.<\/p>\n

SQLite Nedir?<\/h3>\n

SQLite, C dilinde yaz\u0131lm\u0131\u015f, k\u00fc\u00e7\u00fck, h\u0131zl\u0131, kendi ba\u015f\u0131na \u00e7al\u0131\u015fan, y\u00fcksek g\u00fcvenilirlikte ve tam \u00f6zellikli bir ili\u015fkisel veritaban\u0131 y\u00f6netim sistemidir (RDBMS). “Lite” kelimesi genellikle hafif anlam\u0131na gelse de, SQLite’\u0131n hafifli\u011fi \u00f6zelliklerinden de\u011fil, sunucusuz mimarisinden kaynaklan\u0131r. Geleneksel veritaban\u0131 sistemleri (PostgreSQL, MySQL, SQL Server gibi) bir istemci-sunucu mimarisi \u00fczerinde \u00e7al\u0131\u015f\u0131rken, SQLite ayr\u0131 bir sunucu s\u00fcrecine ihtiya\u00e7 duymaz. Bunun yerine, veritaban\u0131 do\u011frudan uygulaman\u0131n kendisiyle b\u00fct\u00fcnle\u015fir ve veritaban\u0131, i\u015fletim sisteminin dosya sistemi \u00fczerinde tek bir dosya olarak saklan\u0131r. Bu benzersiz mimari, SQLite’\u0131 \u00f6zellikle belirli kullan\u0131m senaryolar\u0131 i\u00e7in vazge\u00e7ilmez k\u0131lar.<\/p>\n

SQLite’\u0131n Temel \u00d6zellikleri<\/h3>\n

SQLite’\u0131n bu kadar pop\u00fcler olmas\u0131n\u0131n alt\u0131nda yatan bir\u00e7ok \u00f6nemli \u00f6zellik bulunmaktad\u0131r:<\/p>\n

Sunucusuz ve G\u00f6m\u00fcl\u00fc Mimari<\/h4>\n

SQLite’\u0131n en ay\u0131rt edici \u00f6zelli\u011fi sunucusuz olmas\u0131d\u0131r. Veritaban\u0131 motoru, veritaban\u0131na eri\u015fen uygulama ile ayn\u0131 i\u015flem i\u00e7inde \u00e7al\u0131\u015f\u0131r. Bu, ayr\u0131 bir veritaban\u0131 sunucusu kurma, yap\u0131land\u0131rma ve y\u00f6netme ihtiyac\u0131n\u0131 ortadan kald\u0131r\u0131r. T\u00fcm veritaban\u0131, tipik olarak .db<\/code> veya .sqlite<\/code> uzant\u0131l\u0131 tek bir dosyada saklan\u0131r. Bu dosya, t\u0131pk\u0131 herhangi bir belge dosyas\u0131 gibi kopyalanabilir, ta\u015f\u0131nabilir veya silinebilir. Bu g\u00f6m\u00fcl\u00fc yap\u0131, da\u011f\u0131t\u0131m\u0131 ve bak\u0131m\u0131 son derece kolayla\u015ft\u0131r\u0131r.<\/p>\n

S\u0131f\u0131r Yap\u0131land\u0131rma ve Kolay Kullan\u0131m<\/h4>\n

SQLite, “s\u0131f\u0131r yap\u0131land\u0131rma” felsefesiyle tasarlanm\u0131\u015ft\u0131r. Kurulum gerektirmez; sadece uygulaman\u0131z\u0131n SQLite k\u00fct\u00fcphanesini i\u00e7ermesi yeterlidir. Veritaban\u0131 olu\u015fturmak i\u00e7in tek yapman\u0131z gereken bir dosya ad\u0131 belirtmektir. \u0130lk ba\u011flant\u0131 kuruldu\u011funda, dosya otomatik olarak olu\u015fturulur. Bu, geli\u015ftiriciler i\u00e7in kurulum ve y\u00f6netim y\u00fck\u00fcn\u00fc minimuma indirir.<\/p>\n

\u0130\u015flemsel (ACID) Garantisi<\/h4>\n

SQLite, Atomicity (Atomiklik), Consistency (Tutarl\u0131l\u0131k), Isolation (\u0130zolasyon) ve Durability (Kal\u0131c\u0131l\u0131k) prensiplerini tam olarak destekleyen i\u015flemsel bir veritaban\u0131d\u0131r. Bu, veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fcn ve g\u00fcvenilirli\u011finin kritik oldu\u011fu uygulamalar i\u00e7in hayati \u00f6neme sahiptir. Bir i\u015flem i\u00e7indeki t\u00fcm de\u011fi\u015fiklikler ya tamamen uygulan\u0131r ya da hi\u00e7 uygulanmaz; veritaban\u0131 her zaman tutarl\u0131 bir durumda kal\u0131r.<\/p>\n

D\u00fc\u015f\u00fck Ayak \u0130zi ve Ta\u015f\u0131nabilirlik<\/h4>\n

SQLite k\u00fct\u00fcphanesinin boyutu olduk\u00e7a k\u00fc\u00e7\u00fckt\u00fcr (genellikle birka\u00e7 y\u00fcz kilobayt). Bu, k\u0131s\u0131tl\u0131 kaynaklara sahip cihazlar (mobil cihazlar, IoT cihazlar\u0131) i\u00e7in idealdir. Ayr\u0131ca, neredeyse t\u00fcm i\u015fletim sistemlerinde ve donan\u0131m mimarilerinde \u00e7al\u0131\u015fabilir olmas\u0131, veritaban\u0131n\u0131n ve dolay\u0131s\u0131yla uygulaman\u0131n y\u00fcksek ta\u015f\u0131nabilirli\u011fini sa\u011flar. Bir SQLite veritaban\u0131 dosyas\u0131, farkl\u0131 bir i\u015fletim sistemine veya cihaza kolayca aktar\u0131labilir ve orada sorunsuz bir \u015fekilde kullan\u0131labilir.<\/p>\n

Standart SQL Deste\u011fi<\/h4>\n

SQLite, SQL92 standard\u0131n\u0131n b\u00fcy\u00fck bir k\u0131sm\u0131n\u0131 destekler. SELECT<\/code>, INSERT<\/code>, UPDATE<\/code>, DELETE<\/code>, JOIN<\/code> (INNER, LEFT, RIGHT), VIEW<\/code>, TRIGGER<\/code> ve FOREIGN KEY<\/code> gibi temel SQL \u00f6zelliklerinin yan\u0131 s\u0131ra, geli\u015fmi\u015f sorgulama yeteneklerini de sunar. Bu, SQL bilgisine sahip geli\u015ftiricilerin SQLite ile h\u0131zl\u0131ca \u00e7al\u0131\u015fmaya ba\u015flamas\u0131n\u0131 sa\u011flar.<\/p>\n

A\u00e7\u0131k Kaynak ve G\u00fcvenilirlik<\/h4>\n

SQLite, a\u00e7\u0131k kaynakl\u0131 bir projedir ve kaynak kodu kamuya a\u00e7\u0131kt\u0131r. Bu, \u015feffafl\u0131k ve topluluk deste\u011fi anlam\u0131na gelir. Proje, uzun y\u0131llard\u0131r aktif olarak geli\u015ftirilmekte ve bak\u0131m\u0131 yap\u0131lmaktad\u0131r. NASA, Boeing gibi b\u00fcy\u00fck kurulu\u015flar taraf\u0131ndan da kullan\u0131lmas\u0131, g\u00fcvenilirli\u011finin ve kararl\u0131l\u0131\u011f\u0131n\u0131n bir g\u00f6stergesidir.<\/p>\n

SQLite Ne Zaman Kullan\u0131lmal\u0131?<\/h3>\n

SQLite’\u0131n benzersiz \u00f6zellikleri, onu belirli senaryolar i\u00e7in en iyi se\u00e7im haline getirir. \u0130\u015fte SQLite’\u0131 kullanman\u0131z gereken ba\u015fl\u0131ca durumlar:<\/p>\n

G\u00f6m\u00fcl\u00fc Veritaban\u0131 \u0130htiya\u00e7lar\u0131<\/h4>\n

* Mobil Uygulamalar:<\/strong> Android (Room Persistence Library), iOS (Core Data, FMDB) gibi platformlarda yerel veri depolama i\u00e7in SQLite varsay\u0131lan ve en yayg\u0131n \u00e7\u00f6z\u00fcmd\u00fcr. Uygulama ayarlar\u0131, kullan\u0131c\u0131 verileri, \u00f6nbellek ve \u00e7evrimd\u0131\u015f\u0131 eri\u015fim i\u00e7in idealdir.
\n* Masa\u00fcst\u00fc Uygulamalar\u0131:<\/strong> Electron, Qt, GTK, WPF veya WinForms gibi teknolojilerle geli\u015ftirilen masa\u00fcst\u00fc uygulamalar\u0131nda, kullan\u0131c\u0131 ayarlar\u0131n\u0131, yerel \u00f6nbelle\u011fi veya k\u00fc\u00e7\u00fck veri setlerini depolamak i\u00e7in SQLite m\u00fckemmel bir se\u00e7enektir. Kullan\u0131c\u0131lar\u0131n ayr\u0131 bir veritaban\u0131 sunucusu kurmas\u0131na gerek kalmaz.
\n* Nesnelerin \u0130nterneti (IoT) Cihazlar\u0131:<\/strong> Kaynak k\u0131s\u0131tl\u0131 IoT cihazlar\u0131nda (sens\u00f6rler, ak\u0131ll\u0131 ev aletleri vb.) veri toplama ve depolama i\u00e7in SQLite, d\u00fc\u015f\u00fck ayak izi ve performans\u0131yla \u00f6ne \u00e7\u0131kar.
\n* Oyun Geli\u015ftirme:<\/strong> Oyun i\u00e7i kay\u0131tlar, envanter sistemleri, kullan\u0131c\u0131 profilleri veya oyun ayarlar\u0131 gibi verileri yerel olarak depolamak i\u00e7in kullan\u0131labilir.<\/p>\n

Yerel Veri Depolama ve \u00d6nbellekleme<\/h4>\n

* Taray\u0131c\u0131 Eklentileri:<\/strong> Taray\u0131c\u0131 eklentileri, kullan\u0131c\u0131 tercihlerini, ge\u00e7mi\u015f verilerini veya \u00e7evrimd\u0131\u015f\u0131 eri\u015fim i\u00e7in \u00f6nbelle\u011fi depolamak amac\u0131yla SQLite’\u0131 kullanabilir.
\n* Uygulama Ayarlar\u0131 ve Tercihleri:<\/strong> Bir uygulaman\u0131n kendi i\u00e7 ayarlar\u0131n\u0131, kullan\u0131c\u0131 tercihlerini veya yap\u0131land\u0131rma verilerini depolamak i\u00e7in basit ve etkili bir yoldur.
\n* \u00c7evrimd\u0131\u015f\u0131 \u00c7al\u0131\u015fabilen Uygulamalar:<\/strong> Web uygulamalar\u0131 veya hibrit uygulamalar, \u00e7evrimd\u0131\u015f\u0131 modda \u00e7al\u0131\u015f\u0131rken veri tutmak i\u00e7in taray\u0131c\u0131 taraf\u0131nda (Web SQL Database API arac\u0131l\u0131\u011f\u0131yla, ki bu asl\u0131nda SQLite’t\u0131r) veya Electron gibi platformlarda yerel olarak SQLite kullanabilir.<\/p>\n

Geli\u015ftirme, Test ve Prototipleme<\/h4>\n

* H\u0131zl\u0131 Prototipleme:<\/strong> Bir proje geli\u015ftirirken, h\u0131zl\u0131ca bir veritaban\u0131 kurup hemen kodlamaya ba\u015flamak istedi\u011finizde SQLite idealdir. Kurulum ve yap\u0131land\u0131rma ile vakit kaybetmezsiniz.
\n* Birim ve Entegrasyon Testleri:<\/strong> Testler i\u00e7in temiz, ba\u011f\u0131ms\u0131z ve h\u0131zl\u0131 bir veritaban\u0131 ortam\u0131 sa\u011flamak amac\u0131yla SQLite s\u0131kl\u0131kla kullan\u0131l\u0131r. \u00d6zellikle bellek i\u00e7i (in-memory) SQLite veritabanlar\u0131, her test \u00e7al\u0131\u015fmas\u0131nda s\u0131f\u0131rdan olu\u015fturulup yok edilerek test ortam\u0131n\u0131n izolasyonunu ve h\u0131z\u0131n\u0131 art\u0131r\u0131r.
\n* Basit Betikler ve Veri Analizi:<\/strong> Ge\u00e7ici veri depolama, CSV veya JSON dosyalar\u0131ndan veri alma, basit veri manip\u00fclasyonlar\u0131 i\u00e7in Python gibi dillerle birlikte h\u0131zl\u0131ca kullan\u0131labilir.<\/p>\n

K\u00fc\u00e7\u00fck ve Orta \u00d6l\u00e7ekli Web Siteleri ve API’ler<\/h4>\n

* D\u00fc\u015f\u00fck Trafikli Web Siteleri:<\/strong> Ki\u015fisel bloglar, portf\u00f6y siteleri, basit i\u00e7erik y\u00f6netim sistemleri (CMS) veya d\u00fc\u015f\u00fck trafikli web uygulamalar\u0131 i\u00e7in SQLite yeterli olabilir. \u00d6zellikle tek kullan\u0131c\u0131l\u0131 veya \u00e7ok az e\u015fzamanl\u0131 yazma i\u015flemi gerektiren durumlarda iyi bir performans sunabilir.
\n* Tek Kullan\u0131c\u0131l\u0131 API’ler:<\/strong> Belirli bir amaca hizmet eden, \u00e7ok fazla e\u015fzamanl\u0131 istek almayan k\u00fc\u00e7\u00fck API’ler i\u00e7in backend olarak kullan\u0131labilir.<\/p>\n

Dosya Bi\u00e7imi Olarak Kullan\u0131m<\/h4>\n

* Veri Ar\u015fivleme:<\/strong> Yap\u0131land\u0131r\u0131lm\u0131\u015f verileri tek bir ta\u015f\u0131nabilir dosyada ar\u015fivlemek i\u00e7in SQLite veritaban\u0131 dosyalar\u0131 kullan\u0131labilir.
\n* Veri Transferi:<\/strong> Bir veritaban\u0131n\u0131 bir sistemden di\u011ferine aktarmak gerekti\u011finde, SQLite dosyas\u0131n\u0131 kopyalamak kadar kolay bir y\u00f6ntem yoktur.
\n* Uygulama Yap\u0131land\u0131rmas\u0131:<\/strong> Karma\u015f\u0131k yap\u0131land\u0131rma verilerini, XML veya JSON dosyalar\u0131na g\u00f6re daha yap\u0131land\u0131r\u0131lm\u0131\u015f ve sorgulanabilir bir \u015fekilde depolamak i\u00e7in kullan\u0131labilir.<\/p>\n

SQLite Ne Zaman Kullan\u0131lmamal\u0131?<\/h3>\n

SQLite’\u0131n bir\u00e7ok avantaj\u0131 olsa da, her veritaban\u0131 ihtiyac\u0131na uygun de\u011fildir. Belirli senaryolarda, istemci-sunucu mimarisine sahip daha geleneksel veritaban\u0131 sistemleri daha iyi bir se\u00e7im olacakt\u0131r.<\/p>\n

Y\u00fcksek E\u015fzamanl\u0131 Yazma \u0130\u015flemleri<\/h4>\n

SQLite, t\u00fcm yazma i\u015flemlerini serile\u015ftirir. Yani, ayn\u0131 anda yaln\u0131zca bir yazma i\u015flemi ger\u00e7ekle\u015ftirilebilir. Bu, y\u00fcksek e\u015fzamanl\u0131 yazma y\u00fck\u00fcne sahip uygulamalar (\u00f6rne\u011fin, \u00e7ok say\u0131da kullan\u0131c\u0131n\u0131n ayn\u0131 anda veri yazd\u0131\u011f\u0131 y\u00fcksek trafikli web siteleri veya b\u00fcy\u00fck \u00f6l\u00e7ekli kurumsal uygulamalar) i\u00e7in ciddi bir performans darbo\u011faz\u0131 olu\u015fturabilir. Okuma i\u015flemleri e\u015fzamanl\u0131 olarak ger\u00e7ekle\u015febilir (\u00f6zellikle WAL modu etkinle\u015ftirildi\u011finde), ancak yazma performans\u0131 k\u0131s\u0131tl\u0131d\u0131r.<\/p>\n

\u00c7ok B\u00fcy\u00fck Veritabanlar\u0131<\/h4>\n

SQLite, teorik olarak terabaytlarca veri depolayabilir, ancak pratik olarak bu \u00f6l\u00e7ekte performans sorunlar\u0131 ya\u015fanabilir. Veritaban\u0131 dosyas\u0131 \u00e7ok b\u00fcy\u00fcd\u00fc\u011f\u00fcnde, disk I\/O i\u015flemleri yava\u015flayabilir ve genel performans d\u00fc\u015febilir. B\u00fcy\u00fck veri k\u00fcmeleri ve y\u00fcksek i\u015flem hacmi gerektiren durumlar i\u00e7in PostgreSQL, MySQL veya NoSQL \u00e7\u00f6z\u00fcmleri gibi optimize edilmi\u015f sistemler daha uygundur.<\/p>\n

\u0130stemci-Sunucu Mimarisi<\/h4>\n

SQLite, a\u011f \u00fczerinden eri\u015fim veya uzaktan ba\u011flant\u0131 i\u00e7in tasarlanmam\u0131\u015ft\u0131r. Veritaban\u0131 dosyas\u0131, uygulaman\u0131n \u00e7al\u0131\u015ft\u0131\u011f\u0131 yerel diskte bulunmal\u0131d\u0131r. E\u011fer uygulaman\u0131z\u0131n farkl\u0131 sunuculardan veya birden fazla istemciden merkezi bir veritaban\u0131na eri\u015fmesi gerekiyorsa, SQLite uygun bir \u00e7\u00f6z\u00fcm de\u011fildir. Bu t\u00fcr durumlar i\u00e7in PostgreSQL, MySQL, SQL Server gibi istemci-sunucu tabanl\u0131 RDBMS’ler veya da\u011f\u0131t\u0131lm\u0131\u015f veritabanlar\u0131 tercih edilmelidir.<\/p>\n

Karma\u015f\u0131k Eri\u015fim Kontrol\u00fc ve G\u00fcvenlik<\/h4>\n

SQLite, yerle\u015fik kullan\u0131c\u0131 y\u00f6netimi, rol tabanl\u0131 eri\u015fim kontrol\u00fc veya geli\u015fmi\u015f a\u011f g\u00fcvenli\u011fi \u00f6zellikleri sunmaz. Veritaban\u0131 dosyas\u0131na eri\u015fimi olan herkes, dosya i\u00e7eri\u011fine tam eri\u015fime sahip olabilir. G\u00fcvenlik, i\u015fletim sistemi d\u00fczeyinde (dosya izinleri) veya uygulama katman\u0131nda y\u00f6netilmelidir. \u00c7ok kullan\u0131c\u0131l\u0131, hassas verilerin bulundu\u011fu ve ayr\u0131nt\u0131l\u0131 eri\u015fim kontrol\u00fc gerektiren kurumsal uygulamalar i\u00e7in bu eksiklik \u00f6nemli bir dezavantajd\u0131r.<\/p>\n

SQLite Nas\u0131l Kullan\u0131l\u0131r?<\/h3>\n

SQLite’\u0131 kullanmak olduk\u00e7a basittir. \u00c7o\u011fu programlama dili i\u00e7in haz\u0131r k\u00fct\u00fcphaneler ve s\u00fcr\u00fcc\u00fcler mevcuttur.<\/p>\n

Temel SQL \u0130\u015flemleri<\/h4>\n

SQLite komut sat\u0131r\u0131 arac\u0131 sqlite3<\/code> ile veya herhangi bir programlama dilinden temel SQL komutlar\u0131n\u0131 kullanarak veritaban\u0131 i\u015flemlerini ger\u00e7ekle\u015ftirebilirsiniz:<\/p>\n

* Veritaban\u0131 Olu\u015fturma\/Ba\u011flanma:<\/strong><\/p>\n

sqlite3 veritabanim.db<\/code><\/pre>\n
    Bu komut, veritabanim.db<\/code> ad\u0131nda yeni bir veritaban\u0131 dosyas\u0131 olu\u015fturur veya mevcutsa ona ba\u011flan\u0131r.
\n*   Tablo Olu\u015fturma:<\/strong><\/p>\n
CREATE TABLE IF NOT EXISTS users (\n        id INTEGER PRIMARY KEY AUTOINCREMENT,\n        name TEXT NOT NULL,\n        email TEXT UNIQUE\n    );<\/code><\/pre>\n
*   Veri Ekleme:<\/strong><\/p>\n
INSERT INTO users (name, email) VALUES ('Ahmet Y\u0131lmaz', 'ahmet@example.com');\n    INSERT INTO users (name, email) VALUES ('Ay\u015fe Demir', 'ayse@example.com');<\/code><\/pre>\n
*   Veri Sorgulama:<\/strong><\/p>\n
SELECT * FROM users;\n    SELECT name, email FROM users WHERE id = 1;<\/code><\/pre>\n
*   Veri G\u00fcncelleme:<\/strong><\/p>\n
UPDATE users SET email = 'ahmet.yilmaz@example.com' WHERE id = 1;<\/code><\/pre>\n
*   Veri Silme:<\/strong><\/p>\n
DELETE FROM users WHERE id = 2;<\/code><\/pre>\n
Programlama Dilleri ile Entegrasyon<\/h4>\n
SQLite, hemen hemen t\u00fcm pop\u00fcler programlama dilleriyle entegre edilebilir.<\/p>\n
Python ile SQLite Kullan\u0131m\u0131<\/h5>\n
Python, standart k\u00fct\u00fcphanesinde sqlite3<\/code> mod\u00fcl\u00fc ile SQLite deste\u011fi sunar:<\/p>\n
import sqlite3\n\n
Veritaban\u0131na ba\u011flan (varsa a\u00e7ar, yoksa olu\u015fturur)<\/h2>\nconn = sqlite3.connect('example.db')\ncursor = conn.cursor()\n\n
Tablo olu\u015fturma<\/h2>\ncursor.execute('''\n    CREATE TABLE IF NOT EXISTS stocks (\n        date TEXT,\n        symbol TEXT,\n        price REAL\n    )\n''')\n\n
Veri ekleme<\/h2>\ncursor.execute(\"INSERT INTO stocks VALUES ('2023-01-01', 'AAPL', 170.50)\")\ncursor.execute(\"INSERT INTO stocks VALUES ('2023-01-02', 'GOOG', 105.20)\")\n\n
De\u011fi\u015fiklikleri kaydet<\/h2>\nconn.commit()\n\n
Veri sorgulama<\/h2>\ncursor.execute(\"SELECT * FROM stocks WHERE symbol = 'AAPL'\")\nrows = cursor.fetchall()\nfor row in rows:\n    print(row)\n\n
Ba\u011flant\u0131y\u0131 kapat<\/h2>\nconn.close()<\/code><\/pre>\n
Node.js ile SQLite Kullan\u0131m\u0131<\/h5>\n
Node.js i\u00e7in sqlite3<\/code> gibi pop\u00fcler npm paketleri mevcuttur:<\/p>\n
const sqlite3 = require('sqlite3').verbose();\nconst db = new sqlite3.Database('.\/example.db');\n\ndb.serialize(() => {\n  db.run(\"CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, name TEXT, email TEXT)\");\n\n  const stmt = db.prepare(\"INSERT INTO users VALUES (?, ?, ?)\");\n  stmt.run(1, \"Ali Can\", \"ali@example.com\");\n  stmt.run(2, \"Veli Han\", \"veli@example.com\");\n  stmt.finalize();\n\n  db.each(\"SELECT id, name, email FROM users\", (err, row) => {\n    if (err) {\n      console.error(err.message);\n    }\n    console.log(row.id + \": \" + row.name + \" (\" + row.email + \")\");\n  });\n});\n\ndb.close();<\/code><\/pre>\n
Di\u011fer diller (Java, C#, Go, PHP, Ruby vb.) i\u00e7in de benzer \u015fekilde g\u00fc\u00e7l\u00fc k\u00fct\u00fcphaneler ve ORM’ler (Object-Relational Mappers) bulunmaktad\u0131r.<\/p>\n
Kullan\u0131\u015fl\u0131 Ara\u00e7lar<\/h4>\n
*   sqlite3<\/code> Komut Sat\u0131r\u0131 Kabu\u011fu:<\/strong> Veritaban\u0131n\u0131 y\u00f6netmek, sorgular\u0131 \u00e7al\u0131\u015ft\u0131rmak ve betikleri otomatikle\u015ftirmek i\u00e7in g\u00fc\u00e7l\u00fc bir ara\u00e7t\u0131r.
\n*   DB Browser for SQLite:<\/strong> SQL sorgular\u0131 \u00e7al\u0131\u015ft\u0131rmak, tablolar\u0131 g\u00f6r\u00fcnt\u00fclemek, verileri d\u00fczenlemek ve veritaban\u0131 \u015femas\u0131n\u0131 y\u00f6netmek i\u00e7in kullan\u0131m\u0131 kolay, a\u00e7\u0131k kaynakl\u0131 bir grafik aray\u00fcz (GUI) arac\u0131d\u0131r.
\n*   IDE Entegrasyonlar\u0131:<\/strong> Visual Studio Code, IntelliJ IDEA gibi modern IDE’ler, SQLite veritabanlar\u0131n\u0131 do\u011frudan IDE i\u00e7inden y\u00f6netmeye olanak tan\u0131yan eklentilere sahiptir.<\/p>\n
Performans \u0130pu\u00e7lar\u0131 ve En \u0130yi Uygulamalar<\/h3>\n
SQLite’dan en iyi performans\u0131 almak ve veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc sa\u011flamak i\u00e7in baz\u0131 en iyi uygulamalar\u0131 takip etmek \u00f6nemlidir:<\/p>\n
*   \u0130ndeksleme:<\/strong> S\u0131k\u00e7a sorgulanan s\u00fctunlara (\u00f6zellikle WHERE<\/code> ve JOIN<\/code> ko\u015fullar\u0131nda kullan\u0131lanlara) indeks eklemek, okuma performans\u0131n\u0131 \u00f6nemli \u00f6l\u00e7\u00fcde art\u0131r\u0131r. Ancak, \u00e7ok fazla indeks eklemek yazma i\u015flemlerinin maliyetini art\u0131rabilir, bu y\u00fczden dengeli olmak \u00f6nemlidir.<\/p>\n
CREATE INDEX idx_users_email ON users (email);<\/code><\/pre>\n
*   WAL (Write-Ahead Logging) Modu:<\/strong> Varsay\u0131lan DELETE<\/code> journal moduna k\u0131yasla WAL modu, okuma ve yazma i\u015flemlerinin e\u015fzamanl\u0131l\u0131\u011f\u0131n\u0131 art\u0131r\u0131r. Okuyucular\u0131n, yaz\u0131c\u0131lar taraf\u0131ndan engellenmesini engeller.<\/p>\n
PRAGMA journal_mode = WAL;<\/code><\/pre>\n
*   PRAGMA Komutlar\u0131:<\/strong> SQLite’\u0131n davran\u0131\u015f\u0131n\u0131 ince ayar yapmak i\u00e7in PRAGMA<\/code> komutlar\u0131n\u0131 kullanabilirsiniz. \u00d6rne\u011fin:
\n    *   PRAGMA synchronous = NORMAL;<\/code>: Varsay\u0131lan FULL<\/code> yerine NORMAL<\/code> kullanmak, baz\u0131 durumlarda yazma performans\u0131n\u0131 art\u0131r\u0131rken, sistem \u00e7\u00f6kmesi durumunda k\u00fc\u00e7\u00fck bir veri kayb\u0131 riski ta\u015f\u0131r.
\n    *   PRAGMA cache_size = -N;<\/code>: Bellek \u00f6nbelle\u011fini ayarlayarak disk I\/O’yu azaltabilirsiniz.
\n    *   PRAGMA auto_vacuum = FULL;<\/code>: Veri silindi\u011finde dosya boyutunun otomatik olarak k\u00fc\u00e7\u00fclmesini sa\u011flar.
\n*   \u0130\u015flemler (Transactions):<\/strong> Birden \u00e7ok INSERT<\/code>, UPDATE<\/code> veya DELETE<\/code> i\u015flemini tek bir i\u015flem blo\u011fu i\u00e7inde gruplamak, performans\u0131 art\u0131r\u0131r ve veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc garanti eder. Her sorguyu ayr\u0131 bir i\u015flem olarak \u00e7al\u0131\u015ft\u0131rmak yerine, bir BEGIN TRANSACTION<\/code> ile ba\u015flay\u0131p COMMIT<\/code> ile bitirmek daha verimlidir.<\/p>\n
BEGIN TRANSACTION;\n    INSERT INTO products (name, price) VALUES ('Laptop', 1200);\n    INSERT INTO products (name, price) VALUES ('Mouse', 25);\n    COMMIT;<\/code><\/pre>\n
*   VACUUM Komutu:<\/strong> DELETE<\/code> i\u015flemleri, veritaban\u0131 dosyas\u0131ndaki alan\u0131 hemen geri kazanmaz. Zamanla dosya \u015fi\u015febilir. VACUUM<\/code> komutu, veritaban\u0131n\u0131 yeniden yap\u0131land\u0131rarak kullan\u0131lmayan alan\u0131 geri kazan\u0131r ve dosya boyutunu k\u00fc\u00e7\u00fclt\u00fcr. Bu i\u015flem, b\u00fcy\u00fck veritabanlar\u0131nda zaman alabilir ve veritaban\u0131n\u0131 kilitler, bu y\u00fczden uygun bir zamanda \u00e7al\u0131\u015ft\u0131r\u0131lmal\u0131d\u0131r.
\n*   Veritaban\u0131 Tasar\u0131m\u0131:<\/strong> \u0130yi bir \u015fema tasar\u0131m\u0131, performans\u0131 ve veri b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc do\u011frudan etkiler. Uygun veri tiplerini kullanmak, gereksiz denormalizasyondan ka\u00e7\u0131nmak veya kontroll\u00fc denormalizasyon yapmak \u00f6nemlidir.<\/p>\n
Avantajlar ve Dezavantajlar (\u00d6zet)<\/h3>\n
SQLite’\u0131n kullan\u0131m senaryolar\u0131n\u0131 daha iyi anlamak i\u00e7in avantaj ve dezavantajlar\u0131n\u0131 \u00f6zetleyelim:<\/p>\n
Avantajlar\u0131<\/h4>\n
*   Basitlik ve Kolayl\u0131k:<\/strong> Kurulum gerektirmez, tek dosya halinde depolan\u0131r, yap\u0131land\u0131rmas\u0131 basittir.
\n*   Ta\u015f\u0131nabilirlik:<\/strong> Veritaban\u0131 dosyas\u0131 kolayca ta\u015f\u0131nabilir ve farkl\u0131 platformlarda kullan\u0131labilir.
\n*   D\u00fc\u015f\u00fck Kaynak Kullan\u0131m\u0131:<\/strong> K\u00fc\u00e7\u00fck ayak izi ve bellek kullan\u0131m\u0131, k\u0131s\u0131tl\u0131 kaynaklara sahip cihazlar i\u00e7in idealdir.
\n*   G\u00fcvenilirlik:<\/strong> ACID uyumlulu\u011fu sayesinde veri b\u00fct\u00fcnl\u00fc\u011f\u00fc ve g\u00fcvenilirli\u011fi y\u00fcksektir.
\n*   Esneklik:<\/strong> Bir\u00e7ok programlama diliyle entegrasyonu kolayd\u0131r.
\n*   A\u00e7\u0131k Kaynak:<\/strong> \u00dccretsizdir ve geni\u015f bir topluluk deste\u011fine sahiptir.<\/p>\n
Dezavantajlar\u0131<\/h4>\n
*   S\u0131n\u0131rl\u0131 E\u015fzamanl\u0131 Yazma:<\/strong> Y\u00fcksek e\u015fzamanl\u0131 yazma i\u015flemleri i\u00e7in uygun de\u011fildir.
\n*   A\u011f Deste\u011fi Yok:<\/strong> \u0130stemci-sunucu mimarisi i\u00e7in tasarlanmam\u0131\u015ft\u0131r, a\u011f \u00fczerinden eri\u015fim sa\u011flayamaz.
\n*   G\u00fcvenlik \u00d6zellikleri:<\/strong> Yerle\u015fik kullan\u0131c\u0131 y\u00f6netimi ve ayr\u0131nt\u0131l\u0131 eri\u015fim kontrol\u00fc gibi \u00f6zellikler sunmaz. G\u00fcvenlik, uygulama veya i\u015fletim sistemi d\u00fczeyinde y\u00f6netilmelidir.
\n*   \u00d6l\u00e7eklenebilirlik:<\/strong> \u00c7ok b\u00fcy\u00fck veri k\u00fcmeleri (terabaytlarca) veya y\u00fcksek trafikli sunucu uygulamalar\u0131 i\u00e7in \u00f6l\u00e7eklenebilirlik sorunlar\u0131 ya\u015fayabilir.
\n*   Y\u00f6netim Ara\u00e7lar\u0131:<\/strong> Geleneksel veritabanlar\u0131na k\u0131yasla daha az geli\u015fmi\u015f y\u00f6netim ara\u00e7lar\u0131na sahiptir (ancak yeterli ara\u00e7lar mevcuttur).<\/p>\n
Sonu\u00e7<\/h3>\n
SQLite, veritaban\u0131 d\u00fcnyas\u0131nda e\u015fsiz bir konuma sahiptir. Sunucusuz, g\u00f6m\u00fcl\u00fc, dosya tabanl\u0131 mimarisi ve d\u00fc\u015f\u00fck kaynak kullan\u0131m\u0131yla, \u00f6zellikle mobil ve masa\u00fcst\u00fc uygulamalar\u0131, IoT cihazlar\u0131, geli\u015ftirme ve test ortamlar\u0131 ile k\u00fc\u00e7\u00fck \u00f6l\u00e7ekli web siteleri i\u00e7in paha bi\u00e7ilmez bir ara\u00e7t\u0131r. Kurulumsuz yap\u0131s\u0131 ve y\u00fcksek ta\u015f\u0131nabilirli\u011fi, geli\u015ftiricilere b\u00fcy\u00fck kolayl\u0131k sa\u011flar.<\/p>\n
Ancak, SQLite her senaryo i\u00e7in uygun de\u011fildir. Y\u00fcksek e\u015fzamanl\u0131 yazma i\u015flemleri gerektiren, terabaytlarca veriyi y\u00f6neten veya merkezi, a\u011f \u00fczerinden eri\u015filebilir bir veritaban\u0131 sunucusu isteyen uygulamalar i\u00e7in PostgreSQL, MySQL veya di\u011fer istemci-sunucu tabanl\u0131 \u00e7\u00f6z\u00fcmler daha iyi se\u00e7enekler olacakt\u0131r.<\/p>\n
Do\u011fru kullan\u0131ld\u0131\u011f\u0131nda, SQLite, basitlik, h\u0131z ve g\u00fcvenilirli\u011fi bir arada sunan g\u00fc\u00e7l\u00fc ve verimli bir \u00e7\u00f6z\u00fcmd\u00fcr. Projenizin ihtiya\u00e7lar\u0131n\u0131 dikkatlice de\u011ferlendirerek, SQLite’\u0131n sizin i\u00e7in do\u011fru se\u00e7im olup olmad\u0131\u011f\u0131na karar verebilirsiniz.<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"SQLite: Nas\u0131l ve Ne Zaman Kullan\u0131lmal\u0131? Veri depolama, modern yaz\u0131l\u0131m geli\u015ftirmenin temel ta\u015flar\u0131ndan biridir.","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":[1505],"tags":[],"class_list":{"0":"post-41272","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-sql-2","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"\nSQLite: Nas\u0131l ve Ne Zaman Kullan\u0131lmal\u0131? - Kodlar\u0131n Gizemli D\u00fcnyas\u0131<\/title>\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\/sqlite-nasil-ve-ne-zaman-kullanilmali\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SQLite: Nas\u0131l ve Ne Zaman Kullan\u0131lmal\u0131?\" \/>\n<meta property=\"og:description\" content=\"SQLite: Nas\u0131l ve Ne Zaman Kullan\u0131lmal\u0131? 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