Intermediate SQL: A Guide to SQL Aliasing and Arithmetic скачать в хорошем качестве

Intermediate SQL: A Guide to SQL Aliasing and Arithmetic

In this video, you will see how to effectively use arithmetic symbols and understand the importance of parentheses in SQL queries. We'll also discuss the differences between aggregate functions and arithmetic, and why aliasing is crucial for summarizing data. Additionally, we'll cover the SQL order of execution and its impact on alias use. Perform basic SQL arithmetic operations Understand SQL aliasing and its importance Differentiate between aggregate functions and arithmetic Learn SQL's order of execution #sql #datascience #dataengineering #databases #postgresql 00:00 Intro 00:10 Introduction to Aliasing and Arithmetic 00:54 Understanding Integer Division in SQL 01:24 Aggregate Functions vs. Arithmetic 01:40 Using Aliasing with Arithmetic 02:12 Importance of Aliasing with Functions 02:35 Order of Execution in SQL 03:15 Let's Practice!