This content originally appeared on DEV Community and was authored by Shruti Maheshwari
Welcome to Day 01 of our 21-day coding challenge! Today, we're diving into some of the most common SQL interview questions. Whether you're prepping for an interview or just looking to sharpen your SQL skills, these questions will give you a solid foundation.
1.What is SQL?
2.What are the different types of SQL commands?
- What is a primary key? 4.What is a foreign key?
- What is a JOIN? Explain different types of JOINs 6.What is normalization? Explain its types. 7.What are indexes? 8.What is a stored procedure? 9.What is a trigger? 10.Explain ACID properties.
Practical Questions:
1.How do you retrieve unique records from a table.
2.How do you find the second highest salary from an Employee table?
3.How do you update a record in a table?
4.How do you delete a record from a table?
5.What is a view and how do you create one?
Happy coding! Stay tuned for Day 02 where we’ll cover some exciting topics to keep your coding skills sharp.
21DaysOfChallenge #SQL #CodingInterview #TechInterviews
This content originally appeared on DEV Community and was authored by Shruti Maheshwari
Shruti Maheshwari | Sciencx (2024-06-30T19:47:39+00:00) Top SQL Interview Questions. Retrieved from https://www.scien.cx/2024/06/30/top-sql-interview-questions/
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