--- title: "#sql-interview-questions articles | Hashnode" description: "Explore 5 articles tagged #sql-interview-questions on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/sql-interview-questions" --- Tag # #sql-interview-questions 5 posts · 0 followers [Anish Panda](https://hashnode.com/@anISH601) · [Jan 30](https://hashnode.com/posts/advanced-sql-practice-q1-med/697c15877e9cdde4ff086b70) ### [Advanced SQL Practice - Q1 \[Med\]](https://anish601.hashnode.dev/advanced-sql-practice-q1-med?utm_source=hashnode&utm_medium=feed) You are analyzing a social network dataset at Google. Your task is to find mutual friends between two users, Karl and Hans. There is only one user named Karl and one named Hans in the dataset. The output should contain 'user\_id' and 'user\_name' col... 1 min read · [anish601.hashnode.dev](https://anish601.hashnode.dev/advanced-sql-practice-q1-med?utm_source=hashnode&utm_medium=feed) [Tpoint Tech Blog](https://hashnode.com/@Tpointtechblog) · [Jul 4, 2025](https://hashnode.com/posts/master-sql-interview-questions-in-10-minutes/6867afb812bb0b7dc94dd2c8) ### [Master SQL Interview Questions in 10 Minutes](https://tpointtechblog.hashnode.dev/master-sql-interview-questions-in-10-minutes?utm_source=hashnode&utm_medium=feed) Are you preparing for a database-related job role and want to brush up on SQL before your interview? Whether you’re a fresher or someone with a bit of experience, SQL interview questions are a crucial part of most tech hiring processes. At Tpoint Tec... 4 min read · [tpointtechblog.hashnode.dev](https://tpointtechblog.hashnode.dev/master-sql-interview-questions-in-10-minutes?utm_source=hashnode&utm_medium=feed) [Vipin](https://hashnode.com/@vipinputhan) · [Dec 28, 2024](https://hashnode.com/posts/sql-function-denserank/676f5cb31cd3099acaf12e7c) ### [SQL Function: DENSE\_RANK()](https://vipinputhan.hashnode.dev/sql-function-denserank?utm_source=hashnode&utm_medium=feed) About SQL Function: DENSE\_RANK() When working with SQL, you might need to rank rows based on specific criteria. The DENSE\_RANK() function is a useful tool for this purpose. Unlike the RANK() function, DENSE\_RANK() does not leave gaps in the ranking s... 3 min read · [vipinputhan.hashnode.dev](https://vipinputhan.hashnode.dev/sql-function-denserank?utm_source=hashnode&utm_medium=feed) [Vipin](https://hashnode.com/@vipinputhan) · [Dec 26, 2024](https://hashnode.com/posts/sql-interview-questions-series2/676cc0cea45ce6f002e7f09c) ### [SQL Interview Questions Series#2](https://vipinputhan.hashnode.dev/sql-interview-questions-series2?utm_source=hashnode&utm_medium=feed) Question:Write an SQL query to find the nth highest salary in the Employees table. The nth highest salary is the salary that appears in the nth position when all the salaries are sorted in descending order. The value of n should be specified as a par... 3 min read · [vipinputhan.hashnode.dev](https://vipinputhan.hashnode.dev/sql-interview-questions-series2?utm_source=hashnode&utm_medium=feed) [Vipin](https://hashnode.com/@vipinputhan) · [Dec 26, 2024](https://hashnode.com/posts/sql-interview-questions-series1/676c9cbcd1aebadea4017a64) ### [SQL Interview Questions Series#1](https://vipinputhan.hashnode.dev/sql-interview-questions-series1?utm_source=hashnode&utm_medium=feed) Question: Write an SQL query to find duplicate records in a table named Employees. Consider a record to be duplicate if it has the same values in the FirstName, LastName, and Email columns. Your query should list the duplicated FirstName, LastName, a... 2 min read · [vipinputhan.hashnode.dev](https://vipinputhan.hashnode.dev/sql-interview-questions-series1?utm_source=hashnode&utm_medium=feed)