Identify employees who have never received a performance review.

1 month 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.

1 month 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

1 month 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.

1 month 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.

1 month 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

1 month 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

1 month 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!!

1 month 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

1 month ago

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

Retrieve the name of the manager who supervises the most employees

2 months ago

Company: BlackRock CTC: 26LPA Source: Linked Post Q. Retrieve the name of the manager who supervises the most employees. Solution: SELECT…