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The core goal of database abstraction is to decouple business logic from underlying storage implementation. This ensures that higher-level code remains unaware of the specific database type (MySQL, PostgreSQL, MongoDB, Redis, etc.), allowing it to work with relational databases today and switch to NoSQL with minimal cost, while maintaining code ...

C++ provides a rich set of operators for various programming tasks. These operators enable arithmetic computations, logical evaluations, bitwise manipulations, assignments, and more. Understanding their categories, usage, and precedence is fundamental for effective C++ programming. Arithmetic Operators These operators perform mathematical calcu ...

4.1 What are arithmetic operations? What are relational operations? What are logical operations? Arithmetic operations: Operations such as addition, subtraction, mutliplication, division, and modulus on numbers. Relational operations: Comparisons between two operands to determine relationships like equality, inequality, greater than, etc. Logi ...