Specifying the Filter Criteria
Explore how to filter data in SQL by specifying conditions in the WHERE clause. Understand how to use comparison operators to select records that meet specific criteria, such as sales greater than a certain amount. This lesson helps you build precise queries by mastering filter criteria for targeted data retrieval.
We'll cover the following...
Sifting results
There are instances when we specifically desire to observe data that meets particular criteria. For example, we might be interested in viewing sales that surpass a designated amount, like over 200. Is it possible to accomplish this, and if so, how? Let’s try to understand.
Recall the three questions or clauses that constitute the core of an SQL query. These include:
What are the fields/attributes we want to show in our result set?
What are the data sources?
What criteria/conditions are to be met for those results? ...