This Facebook python interview question will test your ability to use joins, perform transformations and calculations, and address edge-case scenarios. We’re back with another Python interview question from Facebook / Meta. We will solve this question using our 3-step framework that can be used to solve any python interview questions. Facebook Python Interview Question

Our series of interview question walk-throughs marches on! Today we’ll be dealing with the advanced Meta/Facebook SQL interview question. — Meta/Facebook is all about data, and this data is created by you. What you like, comment and post as a user is collected and analyzed on a regular basis. This analysis is represented in the interview question we’ll show you today. To make the explanations even easier, we made a…

An overview of the types of questions in a Data Science interview along with the hands on practice using our platform — In 2012, Harvard Business Review called Data Scientist the sexiest job of the 21st century and the growing trend in the number of job openings for Data Scientist seems to be confirming that statement. With the increase in data, most of the companies today are leveraging Data Science heavily to…

A detailed walkthrough of one of the interesting DoorDash SQL interview questions and solution — The DoorDash SQL interview question we selected for you today is interesting because it requires you to know a variety of SQL concepts. It tests your ability to deal with different types of data by using the functions such as TO_CHAR() and EXTRACT(). …

Sharpen your skills of writing SQL queries to maximize your chances of getting a Business Analyst job at Amazon — Amazon moves more than a million packages every day. Even small improvements in the efficiency of logistical and business operations can save millions of dollars down the line. Business Analysts can analyze hard data, gain insights and communicate their findings to decision makers at the company.

Here’s an article to help you answer the SQL interview questions that require knowledge of the SQL window functions — If you want to work in data science — and you wouldn’t be reading this if you didn’t — you have to be proficient in at least two areas: SQL and job interviews. Yes, both are skills that require practice. When we say SQL, this is an area so broad…

Let’s take a deeper dive into the must-know SQL aggregate concepts for your next Data Science Interview. — Today, we have millions and billions of rows of data being generated each second. However, we usually need a single metric to flag changes and make business decisions. For example — the total sales in the last quarter, the average churn rate, the number of ad impressions served, etc. Aggregation…

A comprehensive guide on Python concepts and questions from top companies for all the budding Data Engineers to help them in preparing for their next interview. — Today we are going to cover interview questions in Python for a Data Engineering interview. This article will cover concepts and skills needed in Python to crack a Data Engineering interview. As a Data Engineer, you need to be really good in SQL as well as Python. …

Retention rates are one of the key business metrics. We’ll show you how to calculate them by explaining in detail how to solve the Salesforce data science interview question. The retention rate is one of the important business metrics, especially in marketing, investing, and product management. It refers to the…