How to return rows that have the same column values in MySql

Question

Lets consider the following table-

ID Score
1  95

2  100

3  88

4  100

5  73

I am a total SQL noob but how do I return the Scores featur

Answer 1

SELECT score
FROM t
WHERE id in (2, 4)
HAVING COUNT(*) = 2 /* replace this with the number of IDs */

This selects the rows with ID 2 and 4. The HAVING clause then ensures that we found both rows; if either is missing, the count will be less than 2.

This assumes that id is a unique column.