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Question : Comparing and Ranking Records
I have an access table with about 43k records.
The table has the ff fields:
[PrimaryKey]
[CustomerNum]
[ShipDate]
[ReceiptDate]
[ElapsedTime]
I need to rank each “CustomerNum” based on the “ElapsedTime”. The shortest “ElapsedTime” should be ranked 1, then so on.
Sample:
Key Customer Time
1 CustomerA 25
2 CustomerA 10
3 CustomerA 3
4 CustomerA 7
5 CustomerA 28
6 CustomerB 2
7 CustomerB 20
8 CustomerB 4
The query should result in:
Key Customer Time Rank
1 CustomerA 25 4
2 CustomerA 10 3
3 CustomerA 3 1
4 CustomerA 7 2
5 CustomerA 28 5
6 CustomerB 2 1
7 CustomerB 20 3
8 CustomerB 4 2
I hope this makes sense. Looking forward to your responses! Thanks!
Answer : Comparing and Ranking Records
test this query
select a.*, (select count(b.customer) from tableX as b where b.customer=a.customer and b.time<=a.time) as rank
from TableX as a
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