JavaScript developers often hear that Promises are asynchronous, which leads to a common assumption: if code is running through Promises, it shouldn’t block the UI. Yet many developers have been surprised to see a web page become unresponsive while executing a long chain of resolved Promises. So what’s really happening? The answer lies in understanding … Read more
When building an Angular application that communicates with secured APIs, we usually need to send an authentication token with every protected HTTP request. Instead of manually adding the Authorization header in every service, Angular provides HTTP Interceptors. An HTTP interceptor allows us to intercept outgoing HTTP requests, modify them, and then pass them to the … Read more
When building APIs in Drupal, one of the most important questions to answer is: Who is calling the API? This is where authentication comes in. Drupal supports multiple authentication mechanisms, each designed for different use cases such as SPAs, mobile apps, internal services, or public APIs. In this blog, we’ll break them down clearly and … Read more
Handling high traffic in Drupal is not just about powerful servers—it’s about smart architecture, layered caching, and performance optimization. Drupal is enterprise-ready, but to truly scale, you must use its features correctly. In this blog, we’ll explore best practices to build and manage high-traffic Drupal websites that are fast, reliable, and scalable. Enable Full Caching … Read more
Method 1: Using LIMIT (MySQL, PostgreSQL) Explanation: Method 2: Using Subquery (Works in most databases) Explanation: Method 3: Using DENSE_RANK() (SQL Server, Oracle, PostgreSQL) Explanation: For interviews, Method 2 (Subquery) and Method 3 (Window Function) are the most commonly asked.
If you are learning SQL, you might come across the term trigger. A trigger in SQL is a special type of stored procedure that automatically executes or fires when certain events occur in a database table, such as INSERT, UPDATE, or DELETE operations. Triggers are very useful for maintaining data integrity, automatically updating related tables, … Read more
In today’s world, you might have heard the term LLM or Large Language Model. But what exactly is it, and why is everyone talking about it? Don’t worry, in this article, we will explain LLM in a simple way that anyone can understand, even if you are not a tech expert. What is LLM? LLM … Read more
When learning SQL, you may hear the term SQL Stored Procedure. Many freshers get confused: Is it a function? Is it a query? Don’t worry — in this blog, we will explain what a stored procedure is, why we use it, and how it works with simple examples. What is a Stored Procedure? Example: Now, … Read more
When you start learning SQL, you often hear about Views. Many freshers get confused thinking – Are views like tables? In this blog, we will explain what are views in SQL in very simple words that any beginner in India can understand. What is a View in SQL? Example: Now whenever you use SELECT * … Read more
If you are a fresher learning SQL, you might get confused between UNION and UNION ALL. Don’t worry, in this blog we will explain the difference between UNION and UNION ALL in SQL with very simple examples that any beginner in India can understand. What is UNION? Example: This will remove duplicates and show only … Read more