- Can practice coding challenges with codility since this a platform used for coding challenges. Challenges in different programming languages, but unfortunately not in SQL.
- A list of technical question here, which includes SQL, python and algorithms.
- Interviewbit offers a long list of scenario SQL questions one can study from along with practice with a couple of multiple choice questions.
- Pgexcercises is a good platform that provides a dataset and an extensive series of postgreSQL queries to practice with.
- This article provides 42 SQL questions one can study from.
- Initial questions about SQL at an interview:
- What functions do you know in SQL?
- How do you use
SELECTin a query? - How do you use
JOINSin a query? - How would you write in example query with
SELECTand functions?