Introduction In Part-1 we covered the SQL basics like keys, joins, and queries. Now, let’s move a step ahead. In this second part, we’ll explore slightly deeper concepts like subqueries, normalization, transactions, stored procedures, and more — but don’t worry, we’ll keep everything beginner-friendly. What is a Subquery? A subquery is just a query inside … Read more
Introduction SQL is one of those skills that keeps showing up in job interviews, whether you’re applying for data analyst, developer, or even business intelligence roles. Why? Because almost every company today works with data, and SQL is the language to talk to that data. If you’re preparing for interviews, mastering SQL basics is your … Read more
Working with dates and times is a core part of data analysis. Numerous built-in functions in SQL facilitate the extraction, manipulation, and computation of date and time variables. Let’s go through the most useful Date and Time Functions one by one with clear examples. Introduction 1. NOW() or CURRENT_TIMESTAMP() This gives both the date and … Read more
Introduction Statistics is all about making sense of numbers. Whether you’re analyzing exam results, company profits, or survey responses, you need a way to summarize data. The idea of central tendency enters the picture at this point. But what exactly does it mean? Let’s break it down in simple words. Understanding Central Tendency Central tendency … Read more
Introduction With Amazon Off Campus Drive 2025, recent graduates can now apply for one of the most renowned positions in the tech sector: Software Development Engineer I (SDE I). This is not just another fresher job; it’s a launchpad into building a rewarding career with one of the world’s biggest technology companies. If you’re someone … Read more
Introduction Are you a fresher looking to kickstart your career in software engineering with a reputed global company? Then Optum’s Off Campus Drive 2025 might just be the golden opportunity you’ve been waiting for. With competitive pay, exposure to cutting-edge technology, and a mission-driven environment, this role is designed for ambitious graduates who want to … Read more
Introduction While COUNT in DAX is limited to numeric values, COUNTA is more flexible — it counts all non-blank values, regardless of whether they’re numbers, text, or logical (TRUE/FALSE) values.In business reporting, this is especially useful for measuring records with any data rather than only numeric entries. In this article, we’ll break down COUNTA in … Read more
Introduction When working with data in Power BI, one of the most basic yet powerful operations is counting values. The COUNT function in DAX allows you to count numeric values in a column, which is essential for building KPIs, tracking performance, and summarizing datasets. In this article, we’ll explore what COUNT does, its syntax, how … Read more
In an era where cyber threats are evolving faster than ever, ProTechmanize is on the lookout for skilled professionals who can stay one step ahead of attackers. The company is inviting applications for the role of Vulnerability Assessment & Penetration Testing (VAPT) Professional – a position that sits at the heart of modern cybersecurity defense. … Read more
Introduction The SUMX function is one of the most powerful aggregation tools in DAX, but also one of the most misunderstood by beginners. Unlike SUM, which works directly on a column, SUMX evaluates an expression for each row in a table and then sums those results.Think of SUMX as a calculator that goes row-by-row before … Read more
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