SQL interview questions
423 real SQL questions across 20 topics, as asked in Indian campus drives and tech interviews. Browse any topic free — every question has a verified answer and an AI-tutor explanation on placd.
Topics (20)
- Schema & DDL interview questions27
- Data Types interview questions27
- Indexing Internals interview questions27
- Query Plans interview questions27
- NULL Handling interview questions24
- Concurrency Control interview questions24
- Normalization interview questions24
- Advanced Querying interview questions21
- Isolation Levels interview questions21
- Advanced Analytics interview questions21
- Querying Basics interview questions18
- Joins interview questions18
- Aggregation & Grouping interview questions18
- Subqueries & CTEs interview questions18
- Window Functions interview questions18
- Indexes & Transactions interview questions18
- Set Operations interview questions18
- Data Modification interview questions18
- Views & Programmability interview questions18
- Join Algorithms interview questions18