EXPLAIN ANALYZE in PostgreSQL is like turning on X-ray vision for your queries. It lets you peek under the hood of your SQL to see what the planner thinks *and* what actually happened. Whether you're fighting slow queries or just flexing your database muscles, mastering EXPLAIN ANALYZE can save you hours of debugging and boost app performance.

MVCC (Multi-Version Concurrency Control) is the backbone of PostgreSQL’s concurrency model. Unlike locking mechanisms that stall readers or writers, MVCC allows multiple transactions to access the database simultaneously without stepping on each other’s toes. This blog dives deep into how PostgreSQL achieves this magic, what snapshots and visibility maps are, and how vacuuming keeps things in check.

As web applications grow, they often need to handle long-running tasks without slowing down user interactions. Sidekiq is a popular choice among Ruby on Rails developers for processing background jobs efficiently. This guide will cover what Sidekiq is, how to set it up in a Rails application, and provide practical examples to illustrate its usage.

When writing code, we all face a common issue of creating complex objects with many possible configuration options. This can be a daunting task, especially if we need to create these objects in a consistent and error-prone. It is where the pattern comes into play. The Builder pattern is a design pattern that can help us to solve this problem. It allows us to create complex objects step by step, and it provides a clear and concise way to structure our code. In this article, we will take a look at how to implement the Builder pattern in Ruby on Rails. We will also discuss the benefits of using the Builder pattern and when you should use it in your own code.

In the fast-paced world of web development, the choice of framework can be critical. Next.js has emerged as a strong competitor, revolutionizing the way we build web applications. Next.js has had a transformative impact on the world of web development. With the recent release of Next.js 13, there are several new features and enhancements that web developers should be aware of. This blog explores the world of Next.js, comparing it to other prominent frameworks.

Web browsers have a set of rules in place to prevent web pages from accessing resources on different origins without permission. This policy, known as the same-origin policy, ensures that a web page can only access resources that have the same origin as the page itself. However, there are scenarios where web applications need to communicate with other origins for legitimate purposes, such as fetching data from an API or loading web fonts. In such cases, cross-origin resource sharing (CORS) comes into play. In this article, we will explore how to implement CORS in a Rails application and understand its significance.

As a Civil Engineer, I never thought that my career path would lead me to become a full-stack developer. However, as I delved deeper into the world of coding, I realized that constructing a building is very similar to building a code. The skills that I acquired as a Civil Engineer, such as the ability to keep my foundation strong, make my work aesthetic and arranged, and design my work keeping worst-case scenarios in mind, have helped me tremendously in becoming a better coder.