How do I practice SQL interview questions?

PracHub provides an interactive SQL console where you can write and test queries against real database schemas. Get instant feedback and compare your solution with the expected output.

What difficulty level is this coding question?

This is a medium difficulty Data Manipulation (SQL/Python) question, commonly asked during HR Screen rounds at eBay.

What role is this question designed for?

This question is commonly asked for Data Analyst candidates at eBay during technical interviews.

Explain Joins and Write Coupon SQL

Quick Overview

This question evaluates proficiency in SQL fundamentals—logical execution order of query clauses, join semantics (INNER/LEFT/RIGHT), timezone-aware timestamp handling, aggregation, grouping and filtering—alongside practical competency in cohort and campaign analytics such as conversion rate, transaction counts, and gross merchandise bought (GMB).

medium
eBay
Data Manipulation (SQL/Python)
Data Analyst

Quick Overview

medium
eBay
Data Manipulation (SQL/Python)
Data Analyst

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