How do you perform a thorough code review?

Q: How do you perform a thorough code review?

This task evaluates a candidate's code-review proficiency across security, correctness, data modeling, concurrency, reliability, and maintainability when inspecting Python backend and SQL-based database code, and is categorized under Software Engineering Fundamentals.

Q: How do I approach Software Engineering Fundamentals interview questions?

Software Engineering Fundamentals questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master software engineering fundamentals interviews.

Question

You are given several Python backend files to review (treat this as an “OA in code-review format”). The code performs database operations such as SQL INSERTs and SELECT queries.

Your task:

Write at least 10 code-review comments, each focusing on a different area (security, correctness, data modeling, concurrency, reliability, maintainability, etc.).
Identify likely issues such as:
- Hard-coded secrets/credentials
- Problems in the SQL schema/design
- Race conditions or missing transactional safeguards
For each issue you raise, propose a concrete fix or improvement (code change, schema change, configuration change, or testing/monitoring addition).

Assume you cannot run the code; you must review it from reading only.

How do you perform a thorough code review?

Quick Overview

Solution

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