Interview prep
200 SQL Interview Questions
Prepare for your next SQL interview with 200 carefully curated questions covering SQL fundamentals, queries, joins, subqueries, window functions, database concepts and more.
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- Level
- beginner
- Format
Get ready for your next SQL developer or data engineering interview with this collection of 200 SQL interview questions.
Whether you are preparing for your first SQL-related role or looking to strengthen your database skills, this resource helps you revise essential SQL concepts and build confidence before your technical interview.
**What's covered:**
- SQL Fundamentals and Syntax
- Database Concepts and Relational Databases
- Data Types and Constraints
- SELECT, INSERT, UPDATE and DELETE
- WHERE, GROUP BY and HAVING
- SQL Joins and Set Operations
- Subqueries and Common Table Expressions (CTEs)
- Aggregate and String Functions
- Window Functions
- Views and Indexes
- Stored Procedures and Functions
- Transactions and ACID Properties
- Query Optimisation and Performance
- Primary Keys and Foreign Keys
- Advanced SQL Concepts
**Who is this for?**
- Beginners learning SQL
- Students preparing for technical interviews
- SQL Developers and Database Developers
- Data Analysts and Data Engineers
- Experienced professionals refreshing their SQL knowledge
A practical resource to revise SQL concepts, strengthen your querying skills and prepare for technical interviews.