Lesson 7. Advanced Data Filtering
In this lesson, you learn how to combine
WHERE clauses to create powerful and sophisticated search conditions. You also learn how to use the
WHERE clauses introduced in Lesson 6, “Filtering Data,” filter data using a single criteria. For a greater degree of filter control, T-SQL allows you to specify multiple
WHERE clauses. These clauses may be used in two ways: as
AND clauses or as
New Term: Operator
A special keyword used to join or change clauses within a
WHERE clause. Also known as a logical operator.
To filter by more than one column, you use the
AND operator to append conditions to your
WHERE clause. The following ...