The SQL Subquery
Now that you’ve learned about SQL Joins, aggregate functionsand the group by keyword, it’s time we moved on to our final topic in our SQL tutorial series. Today you’ll be learning all about SQL Subqueries, how to use them and when you should use a SQL subquery.
So, what is a subquery?
First and foremost, let’s get the jargon out of the way. A subquery can also be referred to as a nested query. It’s just like having a nested if statement in your Java code. Essentially what you’re...
view more