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System Design - Concepts
System Design - Interview
Database System Design
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ReactJS
SOLID Principles
AWS
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Database System Design / General
Primary Key / Foreign Key 🔑 — Database Relationships
Primary Key uniquely identifies a row in a table. A Foreign Key creates a relationship between two tables by referencing a key in another table.
26 Sep 2026 · 32 views
Database System Design / General
Relational Database 🗄️ — Understanding SQL Databases
A Relational Database stores data in structured tables made up of rows and columns. Tables can be related to each other using keys.
26 Sep 2026 · 29 views
Database System Design / General
SQL vs NoSQL 🗄️ — Choosing the Right Database
SQL and NoSQL databases solve different data-storage requirements. In system design interviews, the important part is understanding their data model, consistency, scalability, and when to choose each one.
26 Sep 2026 · 25 views