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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() ...

Aaj ke short mein hum cover kar rahe hain sabse important SQL Server aggregate functions — bilkul beginner-friendly tareeke se!

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

For getting started in SQL checkout my full video on Intro to learning SQL!!

Subscribe & Comment 'sql' i will send you complete details and also will send you complete SQL checklist for Data Analyst ...

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

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

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 ...

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

Struggling with slow SQL queries? Want to optimize them for lightning-fast performance? In this video, I'll walk you through SQL ...

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

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 ...