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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 ...

Why WHERE and HAVING are NOT the same in SQL? Most people use WHERE and HAVING but don't understand how SQL ...

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

What should I do to speed up this database okay how is this data structured it's a single SQL table of orders with the order ID as ...

Learn the 6 essential SQL constraints with clear examples and a visual infographic! Perfect for beginners, students, and anyone ...

SQL JOINS Demystified! Struggling with SQL Joins? Not sure when to use INNER JOIN, LEFT JOIN, RIGHT JOIN, or FULL ...

What is SQL Injection, and why is it one of the most common web vulnerabilities? In this video, we explain SQL Injection in simple, ...

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

DDL commands in SQL are one of the most confusing topics for beginners. In this video, I explain DDL (Data Definition Language) ...

Confused about SQL data types? This video explains SQL data types in a simple and beginner-friendly way. In this video, you will ...

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

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In this video, you will learn SQL Data Manipulation Language (DML) in a clear and beginner-friendly way. I explain the most ...

types of databases explained • all types of database • SQL vs NoSQL explained • types of nosql databases • sql vs nosql vs graph ...

FREE Accounting Infographic eBook:▽ https://longtermmindset.co/fssebook ▽Shop Our Store: ...

In this video, Primary Key in SQL is explained in Hindi using simple pen and paper examples. This beginner-friendly tutorial helps ...

If your PostgreSQL database on Kubernetes goes down, how do you get your data back? The answer: Velero. In today's session ...

what is isolation in acid properties • acid properties isolation explained • isolation in database transactions • isolation in dbms with ...

Are you interested in AI, data science, or data engineering? Then, you came to the right place. In this video, we dive into the ...