Question

     ID      stone_free    original_stone_id
   ------- | ---------- | -------------------
     1     |     0      |         1
     2     |     1      |         2
     3     |     1      |         1

I would like to return rows from the table only if stone_free equals 0 and there is no corresponding original_stone_id in other rows for each row. So for example in the above example row 1 has stone_free as 0 and there is a corresponding original_stone_id in row 3, therefore the query shouldn’t return any rows.

In the example below row 1 has stone_free as 0 but there is no corresponding original_stone_id in the other row, therefore the query should return row 1.

     ID      stone_free    original_stone_id
   ------- | ---------- |  -------------------
     1     |     0      |         1
     2     |     1      |         2

Answer 1

A simple LEFT JOIN should do it;

SELECT a.* 
FROM Stones a
LEFT JOIN Stones b ON a.ID<>b.ID AND a.original_stone_id = b.original_stone_id
WHERE b.ID IS NULL AND a.stone_free=0

Demo here.