SQL Training Plan

Analytical SQL Learning Plan Stage 1: Displaying and Basic Data Familiarization Goal: Learn how to "look into" a table and extract information from it.

What do you want to do?

SQL Command (example) Explanation See everything SELECT * FROM users; * means "all columns".

You are fetching the complete set of data.

Select specific columns SELECT first_name, email, country FROM users; Instead of * , you provide the names of the columns you are interested in.

Limit the number of results SELECT * FROM users LIMIT 10; LIMIT is very useful to avoid fetching millions of rows at once.

Practice Task: Display the first name, last name, and city ( first_name , last_name , city ) for the first 20 users in the table.

Stage 2: Filtering Data – Finding Specific Information Goal: Learn how to ask questions and extract only those rows that meet specific conditions.