Table data
Sys Num
Id
Descr
0001
10
Provider
0001
10
Pro
0002
84
Service
0003
24
Buisness
0003
24
Admin
0003
24
Finance
0004
41
Philosophy
All i want is to calculate the running sum based on the SysNum and Id Field.The desired o/p is
Sys Num
Id
Descr
Sum
0001
10
Provider
-1
0001
10
Pro
-1
0002
84
Service
-2
0003
24
Buisness
-3
0003
24
Admin
-3
0003
24
Finance
-3
0004
41
Philosophy
-4
I tried using sum (-1) over( order by sys_num,id rows unbound preceding) but the result i get is in sequence (-1,-2-3).
Tried using Partition too but the sum is reset when the sys_num and id combination changes.
Thanks,
Kathir.