Rajesh Umrao‒Data&AI

What is the biggest advantage of writing modular SQL queries?
(𝘠𝘰𝘶𝘳 '𝘓𝘐𝘒𝘌' 𝘢𝘤𝘵𝘴 𝘢𝘴 𝘩𝘦𝘭𝘱)

1 day ago | [YT] | 19

Rajesh Umrao‒Data&AI

Which situation most commonly causes duplicate rows after a JOIN?
(𝘠𝘰𝘶𝘳 '𝘓𝘐𝘒𝘌' 𝘢𝘤𝘵𝘴 𝘢𝘴 𝘩𝘦𝘭𝘱)

2 days ago | [YT] | 16

Rajesh Umrao‒Data&AI

In SQL,Why is a Cartesian Product usually considered undesirable?
(𝘠𝘰𝘶𝘳 '𝘓𝘐𝘒𝘌' 𝘢𝘤𝘵𝘴 𝘢𝘴 𝘩𝘦𝘭𝘱)

3 days ago | [YT] | 23

Rajesh Umrao‒Data&AI

📊 Business Analyst vs Data Analyst vs Analytics Engineer
Which career path is right for you? 🤔
Many aspiring data professionals get confused between these three roles. While they all work with data, their responsibilities and required skills are quite different.
Here's a quick comparison 👇
✅ Business Analyst (BA)
Understands business problems
Gathers requirements
Communicates with stakeholders
Creates process flows and documentation
Uses SQL & Excel regularly
📈 Data Analyst (DA)
Extracts and analyzes data
Creates dashboards in Power BI/Tableau
Uses SQL, Excel, and Python
Defines KPIs and generates insights
Helps businesses make data-driven decisions
⚙️ Analytics Engineer (AE)
Builds reliable data models
Develops data pipelines using dbt
Strong SQL, Python & Git skills
Works with Data Warehouses
Bridges Data Engineering and Analytics
💡 Key Takeaways
🔹 SQL is essential for all three roles.
🔹 Python becomes increasingly important for Data Analysts and Analytics Engineers.
🔹 Business Analysts focus more on business understanding and communication.
🔹 Analytics Engineers focus on building scalable analytics infrastructure.
👉 Which role are you preparing for? Comment below: 💼 BA | 📊 DA | ⚙️ AE
Save this post for future reference and share it with someone starting their data career.

3 days ago | [YT] | 16

Rajesh Umrao‒Data&AI

Have you watched ? Can you tell one thing that you like in comment ?
https://youtu.be/INqYIRV-RsI

4 days ago | [YT] | 1

Rajesh Umrao‒Data&AI

Why should filtering be applied as early as possible in a SQL query?
(𝘠𝘰𝘶𝘳 '𝘓𝘐𝘒𝘌' 𝘢𝘤𝘵𝘴 𝘢𝘴 𝘩𝘦𝘭𝘱)

4 days ago | [YT] | 15

Rajesh Umrao‒Data&AI

Why is understanding business requirements as important as writing SQL?
(𝘠𝘰𝘶𝘳 '𝘓𝘐𝘒𝘌' 𝘢𝘤𝘵𝘴 𝘢𝘴 𝘩𝘦𝘭𝘱)

5 days ago | [YT] | 16

Rajesh Umrao‒Data&AI

Why should SQL queries be written with readability in mind?
(𝘠𝘰𝘶𝘳 '𝘓𝘐𝘒𝘌' 𝘢𝘤𝘵𝘴 𝘢𝘴 𝘩𝘦𝘭𝘱)

6 days ago | [YT] | 18

Rajesh Umrao‒Data&AI

Which concept best explains why two different SQL queries can produce the same result?
(𝘠𝘰𝘶𝘳 '𝘓𝘐𝘒𝘌' 𝘢𝘤𝘵𝘴 𝘢𝘴 𝘩𝘦𝘭𝘱)

6 days ago | [YT] | 19

Rajesh Umrao‒Data&AI

Why is understanding the logical execution order of SQL important?
(𝘠𝘰𝘶𝘳 '𝘓𝘐𝘒𝘌' 𝘢𝘤𝘵𝘴 𝘢𝘴 𝘩𝘦𝘭𝘱)

1 week ago | [YT] | 16