DataEngPrep.tech

JavaScript is required to use this application. Please enable JavaScript in your browser settings or disable any extensions that may be blocking scripts.

DataEngPrep.tech

Questions Blog Store

Home/Questions/SQL/Write a SQL query to find top 3 earners in each department.

Write a SQL query to find top 3 earners in each department.

SQLmedium0.4 min readPremium

Frequency

Low

Asked at 2 companies

Category

487

questions in SQL

Difficulty Split

130E|271M|86H

in this category

Total Bank

1,863

across 7 categories

Asked at these companies

FedEx Dataworks Incedo

Key Concepts Tested

Expert AnswerPremium

85 wordsInterview-ready

**Architectural Logic:** Use ROW_NUMBER or DENSE_RANK with PARTITION BY department. ROW_NUMBER = exactly 3 rows per department; DENSE_RANK = ties share a rank (may return >3). **Query:** WITH ranked AS (SELECT employee_id, name, department, salary, ROW_NUMBER() OVER (PARTITION BY department ORDER BY salary DESC) AS rn FROM employees) SELECT employee_id, name, department, salary, rn FROM ranked WHERE rn <= 3....

The complete answer continues with detailed implementation patterns, architectural trade-offs, and production-grade considerations. It covers performance optimization strategies, common pitfalls to avoid, and real-world examples from companies like FedEx Dataworks, Incedo. The answer also includes follow-up discussion points that interviewers commonly explore.

Continue Reading the Full Answer

Unlock the complete expert answer with code examples, trade-offs, and pro tips - plus 1,863+ more.

Create Free Account - Unlock 30 Answers

Get PDF Bundle - from $21

Or upgrade to Platform Pro - $39

Engineers who used these answers got offers at

AmazonDatabricksSnowflakeGoogleMeta

Free: Top 20 SQL Interview Questions (PDF)

Get the most asked SQL questions with expert answers. Instant download.

No spam. Unsubscribe anytime.

Related SQL Questions

mediumWrite an SQL query to find the second-highest salary from an employee table.Free mediumDemonstrate the difference between DENSE_RANK() and RANK()Free mediumDiscuss differences between ROW_NUMBER(), RANK(), and DENSE_RANK(), and provide examples from your projects.Free mediumExplain the differences between Data Warehouse, Data Lake, and Delta LakeFree mediumExplain the differences between Repartition and Coalesce. When would you use each?Free

According to DataEngPrep.tech, this is one of the most frequently asked SQL interview questions, reported at 2 companies. DataEngPrep.tech maintains a curated database of 1,863+ real data engineering interview questions across 7 categories, verified by industry professionals.

← Back to all questions More SQL questions →