I have this data:
id time act ai hr
1 3:26:00 null 5 4
2 3:26:00 null 5 4
3 3:27:00 7 null 4
4 3:27:00 6 5 4
6 3:27:00 null 5 4
7 3:28:00 null 5 4
8 3:28:00 null 5 4
9 4:26:00 null 5 4
10 4:36:00 null 5 4
11 5:26:00 6 5 4
12 5:36:00 null 5 4
13 5:46:00 null 5 null
14 6:26:00 null 5 4
15 7:26:00 null null null
and I want the result like this:
id time act ai hr
1 3:26:00 5 9 8
2 3:26:00 null 5 4
and so on.