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Apache Spark has levels to it: - Level 0 You can run spark-shell or pyspark, it means you can start - Level 1 You understand the ...

SQL INTERVIEW QUESTION ASKED AT MICROSOFT! | FIND THE SECOND HIGHEST SALARY This SQL interview question ...

In this video, I've explained one of the most commonly asked SQL interview questions at Amazon using LEAD() and LAG() ...

This is CS50, Harvard University's Introduction to the intellectual enterprises of computer science and the art of programming.

Welcome back to logical kanika! In this video, we're diving deep into one of the most powerful yet misunderstood concepts in SQL ...

To follow along with this lecture, visit https://cs50.harvard.edu/sql. *** This is CS50, Harvard University's introduction to the ...

In this video, I'll cover the top data analyst interview questions and answers for 2025. Whether you're preparing for Deloitte, KPMG ...

Master SQL Aggregate Functions! In this video, I'll break down COUNT, SUM, MIN, MAX, and AVG with easy-to-follow examples.

To follow along with this lecture, visit https://cs50.harvard.edu/sql. *** This is CS50, Harvard University's introduction to the ...

How to Count Number of row exist in table without asterisk symbol means without Count (*) function When huge data exist in SQL ...

SQL interview question -- Medium SQL Question How to use window functions in this case lag function. using these lines of codes ...

This is CS50P, CS50's Introduction to Programming with Python. Enroll for free at https://cs50.edx.org/python. Slides, source code ...

SQL Challenge: Find Days with Rising Temperatures! 🌡️ In this SQL tutorial, we solve a real-world problem by identifying dates ...

Are you starting your data analysis journey and wondering what to learn first? In this video, I walk you through a practical ...

In this video, we'll solve one of the most frequently asked PySpark interview questions — “How to find the Top N records per group ...

Before 2026, stop asking “Will the market improve?” Start asking “Am I improving?” Most people will wait. Wait for confidence.

Day 9 is live. If you're still here, you're already beating half the crowd. Watch the video. Learn something. Stop finding excuses.

Find accompanying resources for this lecture, such as the slides, notes and exercises here: ...

Happy to announce 3 months course in advance SAS batch 5 Syllabus of course is as follows Modules 1 The SAS programming ...

Hey Y'all! Today, I have given a quick explanation on how to tune a new CB radio. If your radio does not have the same ...

STEP 1: Understand the Data Analyst Role You analyze data to answer business questions using: • SQL • Excel • Python ...