I have the following table:
我有下表：
+----+---------+---------+-------+
| ID | FARM_ID | GATE_ID | SCORE |
+----+---------+---------+-------+
| 1 | 1 | 1 | 100 |
| 2 | 2 | 1 | 100 |
| 3 | 5 | 5 | 100 |
| 4 | 4 | 1 | 16 |
| 5 | 4 | 3 | 16 |
| 6 | 4 | 5 | 23 |
| 7 | 5 | 1 | 100 |
| 8 | 4 | 1 | 95 |
| 9 | 4 | 3 | 91 |
| 10 | 4 | 5 | 100 |
| 11 | 5 | 1 | 20 |
| 12 | 4 | 1 | 100 |
| 13 | 4 | 3 | 95 |
| 14 | 4 | 5 | 95 |
| 15 | 4 | 6 | 91 |
| 16 | 5 | 1 | 16 |
| 17 | 4 | 1 | 95 |
| 18 | 4 | 2 | 91 |
| 19 | 4 | 3 | 100 |
| 20 | 4 | 5 | 91 |
| 21 | 4 | 6 | 95 |
| 22 | 4 | 1 | 91 |
| 23 | 4 | 2 | 95 |
| 24 | 4 | 3 | 95 |
| 25 | 4 | 4 | 91 |
| 26 | 4 | 6 | 100 |
| 27 | 4 | 2 | 100 |
| 28 | 4 | 3 | 91 |
| 29 | 4 | 4 | 95 |
| 30 | 4 | 6 | 95 |
| 31 | 4 | 2 | 95 |
| 32 | 4 | 4 | 100 |
| 33 | 4 | 6 | 91 |
| 34 | 5 | 3 | 100 |
| 35 | 5 | 6 | 100 |
| 36 | 5 | 2 | 100 |
| 37 | 5 | 4 | 100 |
| 38 | 3 | 1 | 91 |
| 39 | 3 | 5 | 100 |
| 40 | 3 | 1 | 100 |
| 41 | 3 | 3 | 91 |
| 42 | 3 | 5 | 91 |
| 43 | 3 | 1 | 91 |
| 44 | 3 | 3 | 100 |
| 45 | 3 | 6 | 91 |
| 46 | 3 | 2 | 91 |
| 47 | 3 | 3 | 91 |
| 48 | 3 | 6 | 100 |
| 49 | 3 | 2 | 100 |
| 50 | 3 | 4 | 91 |
| 51 | 3 | 6 | 91 |
| 52 | 3 | 2 | 91 |
| 53 | 3 | 4 | 100 |
| 54 | 8 | 1 | 100 |
| 55 | 7 | 1 | 100 |
| 56 | 6 | 1 | 100 |
+----+---------+---------+-------+
Desired results:
期望的结果：
I wish to show only the highest score for each FARM_ID--GATE_ID pair. (There should be 23 unique pairs present above and as a result).
我希望只显示每个FARM_ID - GATE_ID对的最高分。 （上面应该有23个独特的对，因此）。
Thanks greatly!
非常感谢！
1 个解决方案
#1
3
select farm_id, gate_id, max(score)
from table
group by farm_id, gate_id
?
？
#1
3
select farm_id, gate_id, max(score)
from table
group by farm_id, gate_id
?
？