Let's say I have the following table, with data:
+----+------+--------+------+| Id | User | Item | Time |+----+------+--------+------+| 1 | 1 | Banana | D+1 || 2 | 1 | Banana | D+2 || 3 | 1 | Banana | D+3 || 4 | 2 | Apple | D+1 || 5 | 1 | Apple | D+2 || 6 | 2 | Apple | D+3 || 7 | 2 | Apple | D+4 |+----+------+--------+------+New rows are added frequently, so I've decided I need a cleanup job to run on a schedule. (Done via my application code)
In order to not keep too much data, I've decided I want to keep the latest 2 entries, per user and item.
My intended result should look like:
+----+------+--------+------+| Id | User | Item | Time |+----+------+--------+------+| 2 | 1 | Banana | D+2 || 3 | 1 | Banana | D+3 || 5 | 1 | Apple | D+2 || 6 | 2 | Apple | D+3 || 7 | 2 | Apple | D+4 |+----+------+--------+------+I'm not sure how to accomplish this delete query. Any help would be appreciated, thanks.
