Looking for SQL Interview Preparation or a Data Analyst / SQL Developer? I just published a compl...

Looking for SQL Interview Preparation or a Data Analyst / SQL Developer? I just published a compl...Looking for SQL Interview Preparation or a Data Analyst / SQL Developer? I just published a compl...

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VR Mohd Matheen

• Sep 20

Looking for SQL Interview Preparation or a Data Analyst / SQL Developer? I just published a complete step-by-step tutorial on

🚀 How to Solve One of the Most Asked SQL Interview Questions: Finding the 2nd Highest Salary!

When preparing for Data Analyst, Business Intelligence, or Data Engineering interviews, SQL fundamentals are everything.

In my latest step-by-step tutorial, I walk through: ✅ Setting up tables from scratch (CREATE TABLE & INSERT INTO)

✅ Method 1: Finding the second highest salary using a Subquery with MAX()

✅ Method 2: Solving it using Window Functions with DENSE_RANK()

This is a must-know concept for anyone preparing for Data Analyst, Data Engineer, or SQL Developer roles.

Watch the full video here: https://youtu.be/jucV2yE4KbA?si=b5csyCuniGEJKvcG

I’m open to full-time opportunities and freelance projects in:

SQL Development

Data Analysis

Data Engineering

dubai freelance powerbi

Mamman Umar Dino

• Sep 16

Your business is generating data every day.

But can you quickly answer:

📦 Which products are at risk of stockouts? 🚚 Where are delivery and fulfillment problems happening? 💰 Which products or processes are affecting revenue? 📊 Which numbers actually need your attention?

That’s where I come in.

I help e-commerce and operations businesses clean, analyze, and visualize their data using Excel, Power Query, SQL, and Power BI.

The goal isn't just another dashboard.

It’s clearer answers, better visibility, and insights you can act on.

If your business has data but you're struggling to turn it into decisions, let's talk.

#Ecommerce #Operations #DataAnalytics #PowerBI #SQL #Excel #BusinessIntelligence

Data Visualization dataanalytics businessintelligence

Achref Riahi

• Sep 16

1,638 GitHub contributions in the last year.

Not a vanity metric — just a year of designing, coding, debugging, shipping, and learning.

I build SaaS products end to end: architecture, backend, frontend, AI integrations, and production.

Currently available for remote freelance projects.

Have something you want to build? Let’s talk.

#FullStack #SaaS #AI #FreelanceDeveloper #SoftwareEngineering

Mousumi Parvin

• Sep 16

There's always something in a dataset that looks interesting at first. But once you check it against the rest of the data... some patterns hold up. Some completely disappear.

That's been an interesting part of working through this e-commerce project.

Cutting the data by product, discounts, returns, and profit together kept changing the picture. It became less about finding a result — and more about understanding which patterns were actually worth chasing. The more the data connected, the more the initial picture changed. That's usually where the real insight is: Not in the first pattern you see. But in the one still standing after you've tried to break it.