Logical Operators and Compound Conditions
Explore how to use logical operators AND, OR, and NOT in SQL queries to combine multiple conditions within the WHERE clause. This lesson helps you apply these operators to retrieve precise data by meeting one or more criteria, enabling you to write more complex and targeted queries for filtering sales and product information.
Let’s start with generating a list of sales corresponding to a particular product, for example, 'Monitor 21in'.
Now, let’s enhance the query. Suppose we want to retrieve sales corresponding to monitors with a sales amount higher than 150. The required condition has two parts:
ProductName='Monitor 21in'SalesAmount>150
We must formulate the condition in the WHERE clause to satisfy both criteria. To ...