说我有下表：
Type |Price |Time
-------------------------
Drill | 5 | ---
Drill | 2 | ---
Drill | 1 | ---
Plant | 3 | ---
Plant | 4 | ---
Light Plant | 9 | ---
Light Plant | 21 | ---
Light Plant | 1 | ---
Light Plant | 5 | ---
我想获得每种类型的2条最新记录。 所以这是我期待的输出：
Drill | 5
Drill | 2
Plant | 3
Plant | 4
Light Plant | 9
Light Plant | 21
我有一个包含多个查询的工作解决方案，即每个查询查找特定类型的2个最新记录。循环遍历所有唯一类型。但是，我想用一个查询来完成它。