Educational Article

Data Analyst SQL Interview Questions | EY (Ernst & Young) | Shared By An Experienced Data Analyst

This article tackles common SQL Interview Questions asked by EY, offering detailed solutions and explanations to help aspiring data analysts…

2 months ago

1164 Product Price at a Given Date

1164. Product Price at a Given Date: Learn how to track and select price from continuously changing series. Read more Company:…

2 months ago

1661 Average Time of Process per Machine

1661 Average Time of Process per Machine: This is a really interesting question where we write a compact code of…

2 months ago

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

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

2 months ago

Identify employees who have never received a performance review.

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

2 months ago

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

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

2 months ago

SQL Natural Join

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

2 months ago

Display the cumulative percentage of total sales for each product.

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

3 months ago

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

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

3 months ago

What is Pareto Principle

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

3 months ago