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

Do you need to learn SQL if you can do everything in Python? #python #dataanalysis #SQL. SUBSCRIBE! Do you want to ...

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

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 ...

Check out this simple roadmap that I followed to master SQL...

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

... SQL joins interview questions, advanced SQL interview questions, SQL case study questions, SQL window functions interview ...

Window functions and aggregate function window function and aggregate function. Optimization technique so.

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

50+ IT Full Courses in Telugu: https://www.youtube.com/playlist?list=PLbMVPNscUopTabwrwhZxVbvCoofSbe86P PythonLife Community ...

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

SQL Questions: 1. How would you optimize a slow-running query with multiple joins? 2. What is a recursive CTE, and can you ...

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

DAY 1/10 Top SQL LEETCODE QnA with full pdf. 1⃣ Recyclable and Low Fat Products (LeetCode 1757) 2⃣ Find Customer ...

Playing with tKinter as a GUI framework for students to be able to create apps with.

Мой тг канал https://t.me/analitikalexei Рассказываю о повседневных задачах что возникают у аналитика экосистемы ...