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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 ...

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

LINK in the comments - In CTE o insert your old query - In CTE n: insert your new query - In Difference CTE: - The first part selects ...

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

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

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

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

Looking for a SQL tutorial that's user-friendly and easy to follow? Look no further than using ChatGPT! This video tutorial is ...

Confused about SQL UNION, UNION ALL, and INTERSECT? Not sure when to use which? In this video, I break them down with ...

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

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

Query optimization in DBMS | Query Optimisation techniques- MOST IMPORTANT SQL/ DBMS INTERVIEW QUESTION. ✨Link to ...

Ready to build your first SQL table? In this video, we'll walk through the SQL CREATE TABLE command step by step—perfect for ...