SQL Advanced - Lesson 4 - Functions (Substring, Lower, Upper etc.) - Part 2

This tutorial includes the usage of GROUP BY and HAVING Clauses that are part of AGGREGATE Functions. Additionally, some basic STRING FUNCTIONS like UPPER, LOWER, LTRIM, RTRIM, SUBSTR etc. are also mentioned.

Links to all SQL Lessons:

SQL Lesson 8 - Subqueries https://youtu.be/7DxuPcx-mRI

SQL Lesson 7 - JOIN (Full, Self, Cross, Union) https://youtu.be/5QR9PcTseBI

SQL Lesson 6 - JOIN (INNER, LEFT, RIGHT) https://youtu.be/_NrRRzCjFGE

SQL Lesson 5 - Constraints (Default, Primary Key, Foreign Key …) https://youtu.be/BtmHISzqYjQ

SQL Lesson 3 - Aggregate Functions SUM, AVG etc. https://youtu.be/w1F0UgsYfis

SQL Lesson 2 - Logical, Conditional and Arithmetic Operators https://youtu.be/OpRO1atoe84

SQL Lesson 1 - Basics of SQL Queries https://youtu.be/pJCyTBkoIKA

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