u/Vikinghehein r/dataengineering • Recommends
…practice it.
**Step 1**: If you are completely new to SQL and want to understand the basics you can refer to: https://www.w3schools.com/sql/. Apart from this you can just Youtube any SQL series for beginners and that should help you in understanding what SQL is and what basics like select, from, where, joins do. I would recommend this playlist: [video \[This should get you an understanding about joins, indexes, window functions, stored procedures, functions, triggers, etc\]
**Step 2**: Once you have understood the above, you need to understand how the execution order of SQL is, as long as you do not understand the flow of your data in your queries you will not be able to visualize how t…