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Walmart

Senior Software Engineer

Clustered vs Non-clustered Indexes

Medium

Round 4 (SQL & Database)general_knowledgeCandidate Selected

SQL Database Indexing

What is the difference between clustered and non-clustered indexes?

This question was asked in

Walmart Senior Software Engineer Interview Experience

The interview process at Walmart consisted of five comprehensive technical rounds covering a broad range of topics. Across the rounds, the candidate was evaluated on Core Java & Concurrency, Spring Boot internal mechanics, Microservices architecture and DevOps practices, SQL queries and indexing, and Low-Level System Design (LLD). Overall, the process was thorough with a medium-to-hard difficulty level, heavily focusing on deep technical understanding, concurrency, and SOLID principles.