Hi, I’m writing Oracle SQL articles and sharing with you. You can learn SQL by following my articles and trying example SQL’s.
Here are the SQL Tutorials, I highly recommend that you must read them in order from the first article. I think they will be useful.
Hope You Enjoy !
1-) INTRODUCTION TO SQL
2-) LIMITING AND SORTING DATA
3-) SINGLE ROW FUNCTIONS
https://ittutorial.org/9832-2/
4-) GROUP FUNCTIONS
5-) SELECTING DATA FROM MULTIPLE TABLES
6-) DML (Data Manipulation Language)