Learn PostgreSQL Offline vs Learn System Design & DSA

PostgreSQL is a popular relational database management system (RDBMS). Our PostgreSQL tutorial provides basic and advanced concepts of PostgreSQL. In this tutorial, we are going to learn all the topics of PostgreSQL language, such as create a database, drop a database, select database, select table, update a record, create a table, delete record, drop table, triggers, functions, insert the record, procedures, cursors, etc. - What is PostgreSQL Database? PostgreSQL is an ORDBMS [Open-Source Object-Relational Database Management System]. It is used to store data securely; supporting best practices, and allow recovering them when the request is processed. - History of PostgreSQL PostgreSQL was developed by the PostgreSQL Global Development Group, which is led by a computer science professor named Michael Stonebraker at the University of California, Berkeley [UCB]. The professor's stonebreaker started in 1986 as a follow-up project and a post-Ingres project to overcome the problems of the existing database system. Initially, it was called as Postgres, but in 1996, the project was renamed to PostgreSQL. Then again, in 2007, they did some analysis, and the development team decided to preserve the name as PostgreSQL. And now, it is the most innovative open-source database available in the market.

Master system design and learn to build scalable, reliable software systems—from fundamentals to real-world architecture.Learn how modern systems work and prepare for software engineering interviews with practical lessons, design frameworks, architecture patterns, and guided projects. WHAT YOU’LL LEARN : • Client-server architecture and network protocols • Vertical and horizontal scaling • Load balancing and caching • SQL, NoSQL, indexing, replication, and sharding • CAP theorem, ACID, BASE, and consistency models • Microservices and event-driven architecture • CQRS, event sourcing, Saga, and circuit breaker patterns • REST, GraphQL, gRPC, rate limiting, and idempotency • Monitoring, observability, disaster recovery, and CI/CD • Capacity planning and technical tradeoffs PRACTICE REAL SYSTEM DESIGN PROBLEMS Work through guided designs for: • URL shorteners • Chat and messaging systems • News feeds • Video streaming platforms • Ride-sharing services • Search engines • Notification systems • Payment platforms • Distributed key-value stores • Recommendation engines • Content delivery networks • Video conferencing systems BUILD YOUR ARCHITECTURE SKILLS : Explore 12 practical architecture projects with step-by-step requirements analysis, capacity estimates, data models, APIs, storage decisions, scalability strategies, and tradeoff discussions. LEARN SYSTEM DESIGN PATTERNS : Study load balancing, caching, database sharding, replication, consistent hashing, service discovery, API gateways, message queues, pub-sub, distributed tracing, service meshes, sidecars, and more. PREPARE FOR SYSTEM DESIGN INTERVIEWS : Use a repeatable interview framework to structure ambiguous problems, clarify requirements, estimate scale, communicate tradeoffs, whiteboard clearly, and present a complete design. CASE STUDIES AND ADVANCED PRACTICE : Go deeper with real-world-inspired architecture case studies, cloud service concepts, design documentation, distributed systems, consistency, consensus, distributed transactions, scheduling, and mock interview practice. MORE ENGINEERING SKILLS : • Software architecture principles • Design patterns • Clean code and refactoring • Technical writing and documentation • Resume writing and career growth • Interview and communication skills Whether you are preparing for a software engineering interview, moving into a senior engineering role, or building production systems, Learn System Design gives you a structured path from fundamentals to advanced architecture. Start learning system design, practice real architecture problems, and design systems with confidence.