#databases
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What is a Columnar Database? 🗄️ A columnar database is a specialized type of database that stores and retrieves data in columns rather than rows....
لو حنيجي نعمل system design ل key-value store زي DynamoDB او redis او memcache ف الأول نعرف ايه مميزاتها و اللي بيفرقها عن الRelational Database...