Using a range with GETDATE & BETWEEN - sql-server

Question

I'm fairly new to T-SQL and am still learning so please bear with me on this one...I've tried several ways to do this with no luck. I have my 'current' and 90+ days but it's the 30 and 60 days that I'm struggling with. Why can't I use the 'between' clause?
,[CURRENT]=(SELECT sum (cle.[Amount])
FROM [NISNAV].[dbo].[NIS$Cust_ Ledger Entry] cl3 left outer join
[NISNAV].[dbo].[NIS$Detailed Cust_ Ledg_ Entry] cle on cl3.[entry no_]=cle.[cust_ ledger entry no_]
where C.[NO_]=CL3.[CUSTOMER NO_] AND cl3.[open]='1' AND cl3.[Due Date]>getdate()-30)
,[30 DAYS]=(SELECT sum (cle.[Amount])
FROM [NISNAV].[dbo].[NIS$Cust_ Ledger Entry] cl3 left outer join
[NISNAV].[dbo].[NIS$Detailed Cust_ Ledg_ Entry] cle on cl3.[entry no_]=cle.[cust_ ledger entry no_]
where C.[NO_]=CL3.[CUSTOMER NO_] AND cl3.[open]='1' AND cl3.[Due Date]BETWEEN GETDATE()-31 AND getdate()-59)
,[60 DAYS]=(SELECT sum (cle.[Amount])
FROM [NISNAV].[dbo].[NIS$Cust_ Ledger Entry] cl3 left outer join
[NISNAV].[dbo].[NIS$Detailed Cust_ Ledg_ Entry] cle on cl3.[entry no_]=cle.[cust_ ledger entry no_]
where C.[NO_]=CL3.[CUSTOMER NO_] AND cl3.[open]='1' AND cl3.[Due Date] BETWEEN GETDATE()-60 AND getdate()-89)
,[90 + DAYS]=((SELECT sum (cle.[Amount])
FROM [NISNAV].[dbo].[NIS$Cust_ Ledger Entry] cl3 left outer join
[NISNAV].[dbo].[NIS$Detailed Cust_ Ledg_ Entry] cle on cl3.[entry no_]=cle.[cust_ ledger entry no_]
where C.[NO_]=CL3.[CUSTOMER NO_] AND cl3.[open]='1' AND cl3.[Due Date]<=getdate()-90 ))
I know there are entries for that particular customer in both of those buckets.
suggestions?

Answer 1

When filtering a range of dates, BETWEEN expects the earlier date to come before the later date.
You need to reverse the sides of the BETWEEN so that the older date (with highest -value) comes first:
,[30 DAYS]=(SELECT sum (cle.[Amount])
FROM [NISNAV].[dbo].[NIS$Cust_ Ledger Entry] cl3 left outer join
[NISNAV].[dbo].[NIS$Detailed Cust_ Ledg_ Entry] cle on cl3.[entry no_]=cle.[cust_ ledger entry no_]
where C.[NO_]=CL3.[CUSTOMER NO_] AND cl3.[open]='1' AND cl3.[Due Date]BETWEEN GETDATE()-59 AND getdate()-31)
,[60 DAYS]=(SELECT sum (cle.[Amount])
FROM [NISNAV].[dbo].[NIS$Cust_ Ledger Entry] cl3 left outer join
[NISNAV].[dbo].[NIS$Detailed Cust_ Ledg_ Entry] cle on cl3.[entry no_]=cle.[cust_ ledger entry no_]
where C.[NO_]=CL3.[CUSTOMER NO_] AND cl3.[open]='1' AND cl3.[Due Date] BETWEEN GETDATE()-89 AND getdate()-60)

Answer 2

Instead of four separate subqueries, you can use one query with CASE statements
SELECT
[CURRENT] = SUM(CASE WHEN cl3.[Due Date] >= DATEADD(day,-30,GETDATE())
THEN cle.[Amount]
END)
,[30 DAYS] = SUM(CASE WHEN cl3.[Due Date] < DATEADD(day,-30,GETDATE())
AND cl3.[Due Date] >= DATEADD(day,-60,GETDATE())
THEN cle.[Amount]
END)
,[60 DAYS] = SUM(CASE WHEN cl3.[Due Date] < DATEADD(day,-60,GETDATE())
AND cl3.[Due Date] >= DATEADD(day,-90,GETDATE())
THEN cle.[Amount]
END)
,[90 DAYS] = SUM(CASE WHEN cl3.[Due Date] < DATEADD(day,-90,GETDATE())
THEN cle.[Amount]
END)
FROM [NISNAV].[dbo].[NIS$Cust_ Ledger Entry] cl3
LEFT OUTER JOIN [NISNAV].[dbo].[NIS$Detailed Cust_ Ledg_ Entry] cle
ON( cl3.[entry no_]=cle.[cust_ ledger entry no_])
WHERE C.[NO_]=CL3.[CUSTOMER NO_]
AND cl3.[open]='1'