Analytics Hub · Free
Video Tutorials
Free step-by-step videos on analytics careers, Excel, SQL, Power BI, Python and interviews, grouped by topic.
15 videos
Power BI & DAX Analytics
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DAX Full Course in Tamil | Section 08 – DAX Math Functions | For Power BI Developer & BI Analysts
Numbers are at the heart of every Power BI report — and DAX Math Functions give you full…
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DAX Full Course | Chapter 09 – Text Manipulation Functions | For Power BI Developers & BI Analysts
🔤 DAX Text Manipulation Functions | Power BI DAX Full Course – Chapter 09 Master every DAX Text…
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DAX Time Intelligence Functions Full Tutorial — Master Every Date Function in Power BI
Master DAX Time Intelligence Functions in Power BI with this complete, beginner-friendly tutorial! 📊 Get the Practice Materials…
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DAX Parent Child Functions Explained | PATH, PATHLENGTH, PATHITEM, PATHCONTAINS | Chapter 12 – DAX
Learn how to work with Parent & Child (Hierarchy) Functions in DAX — a must-know concept for handling…
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DAX Relationship Functions Explained | CROSSFILTER, RELATED, RELATEDTABLE, USERELATIONSHIP
Learn how to control and manipulate table relationships in DAX — a critical skill for building accurate, flexible…
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DAX Filter Functions Explained | CALCULATE, ALL, ALLEXCEPT, ALLSELECTED, FILTER, LOOKUPVALUE
Learn the most powerful and most-used function category in DAX — Filter Functions — the foundation of almost…
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DAX Window Functions Explained – INDEX, OFFSET, WINDOW & RANK Functions in Power BI – Chapter 15
🎯 Master DAX Window Functions in Power BI — INDEX, OFFSET, WINDOW & RANK explained with real examples!…
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DAX Full Course in Tamil | Section 01 – DAX & DAX Studio Fundamentals | Power BI Developers
🎯 Welcome to the DAX Full Course in Tamil. Most practical Power BI learning series! In this first…
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DAX Full Course in Tamil | Section 02: DAX Query Fundamentals | For Power BI Developers
If you've ever looked at a DAX query and had no idea where to start — this video…
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DAX Full Course in Tamil | Section 03: DAX Operators | For Power BI Developers
Before you write any DAX formula, you need to understand how DAX thinks — and that starts with…
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DAX Full Course in Tamil | Section 04: DAX Table Manipulation Functions- Power BI Developers
This is where DAX gets really powerful. 📥 Practice dataset (Free download): https://variablz.com/courses/data-analysis-expressions-dax/ In Part 4 of our…
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DAX Full Course in Tamil | Section 06 – DAX Logical Functions | For Power BI Developers & BI Analyst
Want your DAX measures to think for themselves? That's exactly what Logical Functions do. 📥 Practice dataset (Free…
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DAX Full Course in Tamil | Section 07 – DAX Information Functions | For Power BI Developer
Not sure what's inside your data? DAX Information Functions tell you exactly that. 📥 Practice dataset (Free download):…
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DAX Full Course in Tamil | From Zero to DAX Hero | Power BI for Job Seekers & Professionals
Master DAX (Data Analysis Expressions) from scratch and become a Power BI professional that every company is looking…
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Power BI Full Course in Tamil | Learn from Zero to become a Master | End to End Full Course
🚀 Power BI Full Course in Tamil for Beginners to Advanced | Complete Data & Business Analytics Tutorial…
3 videos
Python for Data Analytics
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Matplotlib Full Course in Tamil | Python Data Visualization | தமிழ்
Learn Matplotlib from beginner to advanced in this complete Python Data Visualization course in தமிழ் 🇮🇳 Download Practice…
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Pandas – Full Course in Tamil | Zero to Hero in Data Analysis | 2026 | Free Tutorial
🐼 The MOST Complete Pandas Course in Tamil — Updated for 2026! Whether you're a fresher or a…
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Python Full Course in Tamil | Basics to Advanced for Everyone | Free Tutorial for Job Seekers 2026
🐍 Python Full Course in Tamil | Zero to Hero | Free Tutorial for Job Seekers 2026 Are…
8 videos
Applied Analytics
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Portfolio Project for Data Analyst Jobs | End-to-End Sales Analysis Explained in Tamil
A complete portfolio project for data analyst jobs. This is an end-to-end Sales Analysis of an auto-parts business,…
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Data Analyst Real World Full Project in Tamil | Sales Analytics EP 06 | SQL Project
🚀 Data Analyst Real World Full Project in Tamil | Sales Analytics – Episode 06 Want to learn…
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Real-World SQL Data Analyst Project | Promotions & Returns Analysis | Episode 05 (Tamil)
📊 Real-World Data Analyst Project – Episode 05: Promotions & Returns Analysis Learn how to analyze promotional performance,…
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SQL Data Analyst Real-World Project | EP 01: Sales & Revenue Analytics with SQL
Welcome to Episode 01 of our Real-World SQL Data Analyst Project! In this series, we're building a complete,…
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SQL Sales Analytics EP 02 | Order Funnel, Shipping & Conversion Analysis | Real-World SQL Project
🚀 SQL Data Analyst – Real World End-to-End Project | Season 01: Sales Analytics | Episode 02 What…
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Customer Analytics with SQL | RFM, CLV, Cohort & Credit Analysis | Episode 03
How do Data Analysts understand customer behavior, customer value, dealer performance and acquisition channels using SQL? 📊 In…
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Sales Analytics Project EP 04 | Product, Profit & Pricing Analysis | Real-World Data Analyst Project
SQL Sales Analytics EP 04 | Product, Profit & Pricing Analysis | Real-World SQL Project Season 01: Sales…
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Excel Dashboard Project in Tamil | Retail Sales Dashboard | Power Query + Power Pivot Charts 2026
Build a Complete Retail Dashboard in Excel - Step by Step in Tamil! FREE Practice Dataset & Course…
13 videos
General
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Tableau Full Course for Beginners | Excel to Interactive Dashboard Step by Step
Learn Tableau from scratch in this full course for beginners. Start with an Excel sheet and finish with…
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Python Image Processing with NumPy & Matplotlib – Full Course in Tamil | 100% Practicals
Master Image Processing in Python using only NumPy and Matplotlib — no OpenCV required! This complete hands-on course…
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DAX Date & Time Functions Guide | CALENDAR, DATEDIFF, EDATE, NetworkDays & More | DAX Chapter 10
📅 DAX Date & Time Functions | Power BI DAX Full Course – Chapter 10 Everything you need…
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DAX Full Course in Tamil | Section 05 – Aggregate Functions | For Power BI Developers & BI Analysts
Every Power BI report comes down to numbers — and Aggregate Functions are how DAX calculates them. 📥…
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SQL Data Analyst: Real-World End-to-End Project
SQL Data Analyst Real World End-to-End Project Stop learning SQL with random exercises. Start working like a real…
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Data Analyst Roadmap 2026 — The Bitter Truth in 30 Minutes to Save a Year
This is not just another roadmap video on how to become a Data Analyst in 2026. Instead, we…
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How Much Data Do You Really Need? | Sampling Techniques Explained | Data Science Tamil
Here's a problem every Data professional faces silently — You get a massive dataset. Millions of rows. You…
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Build a Dashboard in Power BI | Complete Beginner Tutorial (2026)
New to Power BI? This is the perfect starting point! In this step-by-step tutorial, you'll build a real-world…
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Will AI Replace Data Analysts? | Claude AI in Excel | Data Analysis Course in Tamil – Part 01
Are you an Excel user wondering — Will AI take my job? Claude AI has entered Excel, and…
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Regex + Pattern Matching Full Course in SQL | For Data Analyst Prep 2026
90% of Freshers Get Rejected Here — Don't Be One of Them! Top MNC and product companies like…
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Data Analysis Expressions (DAX) with Real-World Sales Analytics Case Studies | DAX Practice 2026
Are you preparing for a Data Analyst or Business Analyst interview in 2026? In this video, you will…
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RLHF Explained in Tamil | Fine-Tuning, Reward Model & PPO | LLM Interview Prep 2026
LLM Interview- RLHF concept ! video- cover : Why RLHF matters? Why Fine-Tune LLMs? Supervised Fine-Tuning (SFT) Fine-Tuning…
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Data Interview: How to Decide Drop or Fill Missing Values? | MCAR MAR MNAR Explained
Struggling with missing data in interviews or real projects? This video teaches you exactly how to decide whether…
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