krishna Kumar (@krishnapro)

SQL COALESCE vs CASE: Why COALESCE is Better for Handling NULL Values

In SQL, dealing with NULL value is a common task especially when querying large datasets with missing or incomplete data. Generally, we use CASE expression and COALESCE to handle NULL value. While both can achieve similar goals, COALESCE is typically...

2 min readkrishnakumar.hashnode.dev

Oct 19, 2024

System Design: Load Balancing

Load balancing is a crucial component of system design, especially for ensuring that applications can handle high traffic and remain available and responsive. Let's break it down step by step. What is a Load Balancer? Load balancing is the process of...

5 min readkrishnakumar.hashnode.dev

Aug 10, 2024

Scaling: Horizontal vs Vertical Scaling

What is scaling? In system Design terms, scaling is the process of increasing the system's performance and resources to handle more traffic or load without making it more complex. There are two types of scaling: Vertical Scaling (Scaling-up) Horizo...

2 min readkrishnakumar.hashnode.dev

Jul 7, 2024

How to Implement User Authentication and Authorization with SpringBoot and JWT

Simple steps to protect your app with Spring Security and JSON Web Token (JWT) without third party library.

5 min readkrishnakumar.hashnode.dev

Jun 15, 2024

A Beginner's Guide to ProcessBuilder in Java

Understanding and Implementing System Proccesses

4 min readkrishnakumar.hashnode.dev

Feb 4, 2023

krishna Kumar

About

Available for

krishna Kumar's blogs

SQL COALESCE vs CASE: Why COALESCE is Better for Handling NULL Values

System Design: Load Balancing

Scaling: Horizontal vs Vertical Scaling

How to Implement User Authentication and Authorization with SpringBoot and JWT

A Beginner's Guide to ProcessBuilder in Java

krishna Kumar

About

Available for

krishna Kumar's blogs

SQL COALESCE vs CASE: Why COALESCE is Better for Handling NULL Values

System Design: Load Balancing

Scaling: Horizontal vs Vertical Scaling

How to Implement User Authentication and Authorization with SpringBoot and JWT

A Beginner's Guide to ProcessBuilder in Java

krishna Kumar

About

Available for

krishna Kumar's blogs

SQL COALESCE vs CASE: Why COALESCE is Better for Handling NULL Values

System Design: Load Balancing

Scaling: Horizontal vs Vertical Scaling

How to Implement User Authentication and Authorization with SpringBoot and JWT

A Beginner's Guide to ProcessBuilder in Java

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krishna Kumar

About

Available for

krishna Kumar's blogs

SQL COALESCE vs CASE: Why COALESCE is Better for Handling NULL Values

System Design: Load Balancing

Scaling: Horizontal vs Vertical Scaling

How to Implement User Authentication and Authorization with SpringBoot and JWT

A Beginner's Guide to ProcessBuilder in Java