Hi there! I’m a junior in college and I’m trying to land a backend internship. I’m feeling pretty anxious about the SQL and database questions they might throw at me during interviews.
I’d really appreciate if someone could give me a quick rundown of the most important SQL topics I should focus on. What are the absolute must-know concepts that interviewers typically expect candidates to understand?
I want to make sure I’m prepared, but there’s so much to learn and I’m not sure where to start. Any advice on key areas to prioritize would be super helpful. Thanks in advance for any tips!
Based on my experience, focusing on core SQL concepts is key for landing a backend internship. First, mastering the basic CRUD operations—CREATE, READ, UPDATE, DELETE—is essential, along with writing effective SELECT queries that incorporate JOINs, GROUP BY, and WHERE clauses. Understanding database indexing and its impact on performance can really set you apart. Equally important is a good grasp of database design principles such as normalization and table relationships, as well as familiarity with transactions and ACID properties. Finally, being able to explain how you would optimize slow-running queries demonstrates practical problem-solving skills that interviewers value.
hey there! curious about your current sql skills. have u tried any practice problems yet? might be worth checking out some online coding challenges to test ur knowledge. what kind of backend tech are u most interested in? Knowing that could help narrow down which sql concepts to focus on. good luck with ur internship hunt!