Find the most common value (mode) in a specific column.

3 months ago

This question was asked in Interview at black rock. Read more Company: BlackRock CTC: 26LPA Source: LinkedIn SQL Interview Question Q. Find…

Identify employees who have never received a performance review.

3 months ago

This question was asked in Interview at black rock. Read more Company: BlackRock CTC: 26LPA Source: LinkedIn SQL Interview Question Q. Identify…

Write a query to retrieve the first order placed by each customer.

3 months ago

This question was asked in Interview at black rock. Read more Company: BlackRock CTC: 26LPA Source: LinkedIn SQL Interview Question Q. Write…

SQL Natural Join

3 months ago

What is SQL Natural Join? Natual Join is a type of join in SQL which combines row from 2 tables…

Display the cumulative percentage of total sales for each product.

3 months ago

This question was asked in Interview at black rock. Read more Company: BlackRock CTC: 26LPA Source: LinkedIn SQL Interview Question…

Write a query to group employees by age ranges (e.g., 20–30, 31–40) and count the number of employees in each group.

3 months ago

This question was asked in Interview at black rock. read more Company: BlackRock CTC: 26LPA SQL Interview Question Question Q.…

What is Pareto Principle

3 months ago

The Pareto Principle, commonly known as the 80/20 rule, argues that 80% of the results are achieved with 20% of…

Running Total for Different Genders: Write an SQL query to find the total score for each gender at each day

3 months ago

This question was asked in Facebook interview, Ask is to provide Running Total for Different Genders. Source: LeetCode Difficulty: Medium…

SQL LAG function explained!!

3 months ago

Understanding the SQL LAG Function (With Examples) SQL LAG function is a powerful tool that enables you to access data…

Page Recommendations: Write an SQL query to recommend pages to the user

3 months ago

This question was asked in Facebook interview, Ask is to give page recommendation for user1 based on Friendship and Likes.…