I’ll be real with you, when I opened Tableau for the first time and was introduced to what we actually do in it, my brain did a full reset. I vaguely remembered doing bar charts and donut charts back in school. I knew they existed. But what they actually represent? What problem they solve? Completely blank. And there’s no shame in admitting that I had to start from Level 1, and I’m saying that with full honesty and zero embarrassment. The first thing I did was break down my s

A step-by-step guide to solving SQL queries using ER diagrams. Learn how to identify relationships, apply joins, and write accurate SQL queries.

Learn what Data Analysis is, its different types, the complete data analysis process, and the role of a data analyst. Discover how organizations transform raw data into actionable insights for better decision-making and business growth.

Remember that time you shrugged off a seemingly harmless scrape on your elbow? Most of the time its nothing and you move on. But I clearly remember the warning that my parents gave, that if I don’t clean and disinfect the wound, it may become Septic.

Every year, 1.7 million people in the U.S. find themselves in a battle they didn't see coming. I am talking about the one within our body. It doesn't start with a bang; it starts with a simple infection—in the lungs, the skin, or even the digestive tract. But then, something goes terrifyingly wrong. Have you ever wondered what happens when your body’s own defense system decides to burn down the house to put out a candle? That is Sepsis.

Before getting into the topic lets first know what is Tableau and Why it is used? What Is TABLEAU? Imagine you are a manager at a growing company. Every day, information comes in from different places sales reports, customer feedback, website visits, and financial records. Soon, you have thousands of rows of data in the form of spreadsheets and databases. Looking at all this raw data feels like trying to read a huge pile of puzzle pieces without seeing the full picture. Th

Data visualization is an important skill for every data analyst. Instead of looking at large tables of numbers, charts and graphs make data easier to understand. They help people quickly spot trends, patterns, and important information. Python offers useful tools like Pandas, Matplotlib, and Seaborn that make it simple to create charts and turn raw data into clear and meaningful visuals. In this article, we'll explore the Popular charts that every beginner data analyst should

In Healthcare, data is often available in large quantities with messy and inconsistent format. When I explored this dataset, I noticed missing values, inconsistent formats, outliers, and unstructured clinical measurements. This blog mainly focuses on transforming raw healthcare data into meaningful insights using Python for data cleaning and feature engineering, followed by building interactive dashboards in Tableau. The main goal of this blog, before building dashboards or

Data visualization is an important skill for every data analyst. Instead of looking at large tables of numbers, charts and graphs make data easier to understand. They help people quickly spot trends, patterns, and important information. Python offers useful tools like Pandas, Matplotlib, and Seaborn that make it simple to create charts and turn raw data into clear and meaningful visuals. In this article, we'll explore five easy Python charts that every beginner data analyst s

The term DATA OBSERVABILITY was first coined in 2019. How I define Data observability is that how it allows you to continuously monitor your data and data systems. It helps you spot problems early, understand what caused them, and resolve them before they affect reports, dashboards, or decision making. Data observability monitors a dataset's volume and freshness. Data observability ensures that all expected data is present and refreshed at the correct time. It uses exceptiona

The moment I counted sixty measures waiting to be manually copied, I knew there had to be a better way. Working in a team on Power BI projects sounds great in theory — everyone builds brilliantly in isolation, visuals looking sharp, measures working perfectly. Until that one painful moment arrives where it all needs to come together in a single file. I had sixty-plus calculated columns and measures across three visuals, one deadline, and absolutely zero intention of doing it

Introduction If you’re new to project management tools, learning Jira as a beginner can feel overwhelming at first. But don’t worry this guide will walk you through everything step by step in a simple way. Jira, developed by Atlassian, is one of the most popular tools used by teams to manage tasks, track progress, and collaborate efficiently. By the end of this blog, you will understand how to use Jira and create your first project. What Is Jira? An illustrated guide to JIRA

SQL NULLs often behave unexpectedly and can silently change query results. This blog explores common null traps in filtering, aggregates, subqueries, joins, and more—with practical examples and fixes.

Tableau is a visual analytics platform that empowers users to solve problems and maximize the impact of their data. In a fast‑moving landscape shaped by constant advances in AI and technology, picking up a new tool can understandably feel like a lot to take in. Life without Tableau When we come across a huge amount of data in a theory, it makes us feel confused, tired, and uncertain of the outcomes. In this case, what else can make our everyday life easy to read da

In modern analytics ,environments, dashboards are shared across teams, departments, and regions.But not every user should see every row of data. A regional manager should only see their region. A team lead should only see their team. A student should only see their own scores. This is where RLS becomes essential .RLS ensures that each user sees only the data they are authorized to see , without requiring multiple versions of the same dashboard. One dashboard, many p

Tableau is already a powerhouse for data visualization, but sometimes you need charts that go beyond the native library—think Sankey diagrams, radial bar charts, network graphs, or custom KPI widgets. That’s where Tableau VIZ Extensions come in. They let you embed custom, interactive visualizations directly inside your dashboard using JavaScript‑powered extensions. What Are Tableau VIZ Extensions? VIZ Extensions allow you to insert custom visualizations into Tableau dashboa

In todays's data saturated world,it's not enough to simply present numbers-we need to create stories that could create an impact. This is...

Photo credit Photo by Claudio Schwarz on Unsplash Todays digital world is data driven. Businesses, governments, finances, medical and...

Joins Joins in the data world means combining two tables horizontally. Join functions/queries help us to consolidate two separate tables...

Microsoft Excel is a spreadsheet editor that helps to format, organize and analyze data in a spreadsheet. In this blog, I am trying to...