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 hard difficulty Data Manipulation (SQL/Python) question, commonly asked during Technical Screen rounds at Databricks.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Databricks during technical interviews.

Find Top-5 Similar Rows | Databricks SQL Question

Quick Overview

This question evaluates pairwise similarity matching, numerical feature comparison using mean squared error, null-value exclusion, and deterministic top‑k ranking—key competencies in data manipulation and feature-based record linkage.

hard
Databricks
Data Manipulation (SQL/Python)
Data Scientist

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