我有这样的表:
+------+-------+
| user | data |
+------+-------+
| 1 | a |
+------+-------+
| 1 | b |
+------+-------+
| 2 | c |
+------+-------+
我需要得到类似的东西:
Array
(
[1] => 2
[2] => 1
)
获取唯一用户并计算数据行中的实例,有什么想法吗?
我试过这个查询:
SELECT DISTINCT user from table ORDER BY ID DESC