Implementing INTERSECT Query in MySQL

  The SQL INTERSECT query returns the results of 2 or more "select" queries. However, it only returns the rows selected by all queries. If a record exists in one query and not in the other, it will be omitted from the INTERSECT results. 

The syntax for the SQL INTERSECT query is:

select field1, field2, ..., field_n 
from table1 
INTERSECT 
select field1, field2, ..., field_n
from table2
 

But this query is not implemented in MySQL. So to achieve the same effect you can use the following Query statement.  

select field1, field2, ..., field_n 
from table1 
where (field_x) IN (select field_x from table2);

Where field_x is the field over which the comparison is performed.