SQL Interview Playbook with Zain Ul Hassan

𝗜'𝘃𝗲 𝗯𝗲𝗲𝗻 𝗿𝗲𝗷𝗲𝗰𝘁𝗲𝗱 𝗺𝗼𝗿𝗲 𝘁𝗶𝗺𝗲𝘀 𝗶𝗻 𝗦𝗤𝗟 𝗶𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝘀 𝘁𝗵𝗮𝗻 𝗜 𝗰𝗮𝗻 𝗰𝗼𝘂𝗻𝘁.

And honestly...

I'm glad it happened.

For the last 6 years, I've worked across different tech startups where SQL wasn't just a nice-to-have—it was a core skill.

With every job switch came another round of SQL interviews.

Joins.

Window Functions.

CTEs.

Subqueries.

Case Statements.

Optimization.

Sometimes I cleared them.

Sometimes I didn't.

But after every interview, I wrote down every question I could remember.

Over time, those notes turned into a personal SQL Interview Playbook.

After hundreds of interviews, countless practice problems, and real-world projects, it became my go-to resource whenever I prepared for a new opportunity.

It includes:

• Frequently asked SQL interview questions

• Window Functions explained

• CTEs and Subqueries

• Joins with practical examples

• Aggregations and Group By

• Real interview scenarios

• Tips that helped me crack SQL rounds

I'm sharing it for free because I know how overwhelming SQL interview preparation can feel.

If you know someone preparing for a Data Analyst, Business Analyst, Product Analyst, or Analytics Engineer role, tag them—they might find it useful.