SQL query on multiple tables

Question

Suppose i have the following 2 tables:

Persons Table:  
Name  
ID[Primary Key]

Fruits Table:  
Name  
ID[Foreign Key Persons.ID]

This is a table structure for storing persons and the fruits they like. Now if I want to find all the persons who like "Apple" and "Orange"(this would be dynamic). How can i design a SQL query for that?

Answer 1

You can use a query like the following to get the IDs of all persons who like Apples and Oranges:

SELECT p.ID
FROM Persons AS p
JOIN Fruits AS f ON p.ID = f.PersonsID
WHERE f.Name IN ('Apple', 'Orange')
GROUP BY p.ID
HAVING COUNT(DISTINCT f.Name) = 2