contains is often used in the where clause, the method is:SELECT * FROM table_name WHERE CONTAINS(fullText_column,'search contents')。
For example, suppose there is a student table, which contains student ID (num), name (name), gender (sex), and home city (city).
Example 1 Query the student ID and name of the student whose home is in Shanghai.
method one
select num，name
from student
where contains（city，“上海”）
Way two
select num，name
from student
where city=“上海”
Example 2 Query information about students whose gender is female.
method one
select *
from student
where contains（sex，“女”）
Way two
select *
from student
where sex=“女”
Through this example, you can see that the usage of contains is to query the parameters it contains.