Nested Case in both When and Else - tsql

Question

I am trying to create "Buckets" into my select. Basically I want to determine the aging of a record (in this case tickets). The Aging depends on 2 fields. If there is a required date then it is based on this field, if there is no require date, then is based on the date that the ticket was entered. What I want to accomplish is to have a Aging bucket for 120+, 90-120 Days, 60-90 Days, 30-60 Days, 15-30 Days, 5-15 days and 1-5 Days.
The following query is not working right (syntax error). I've been staring at it for too long now.
EDIT Formatting
SELECT v_rpt_Service.TicketNbr, v_rpt_Service.Location, v_rpt_Service.Board_Name, v_rpt_Service.Status_Description, v_rpt_Service.ClosedDesc,
v_rpt_Service.ServiceType, v_rpt_Service.SubType_RecID, v_rpt_Service.ServiceSubType,
v_rpt_Service.company_name, v_rpt_Service.Summary, v_rpt_Service.team_name, v_rpt_Service.date_entered, v_rpt_Service.entered_by,
v_rpt_Service.Date_Required, v_rpt_Service.hours_budget, v_rpt_Service.Hours_Scheduled, Member.Member_ID, v_rpt_Service.Territory,
Case
When Date_Required IS Null then round((DATEDIFF(DAY,date_entered,GETDATE())+1)*.69,0) else round((DATEDIFF(Day,date_required,getdate())+1)*.69,0) END as Age,
**case when
(Case when Date_Required IS Null
then round((DATEDIFF(DAY,date_entered,GETDATE())+1)*.69,0)
else round((DATEDIFF(Day,date_required,getdate())+1)*.69,0)
end )>= 120
then '120+'
else
(Case when Date_Required IS Null
then round((DATEDIFF(DAY,date_entered,GETDATE())+1)*.69,0)
else round((DATEDIFF(Day,date_required,getdate())+1)*.69,0)
end) < 120 AND
case when Date_Required IS Null
then round((DATEDIFF(DAY,date_entered,GETDATE())+1)*.69,0)
else round((DATEDIFF(Day,date_required,getdate())+1)*.69,0)
end >= 90
then '90-120 Days'
else 'Newer'
end as Aging**
FROM Member AS Member INNER JOIN
SR_Team AS SR_Team ON Member.Member_RecID = SR_Team.Member_RecID INNER JOIN
v_rpt_Service AS v_rpt_Service ON SR_Team.Description = v_rpt_Service.team_name
WHERE (v_rpt_Service.ClosedDesc = 'Open') AND (v_rpt_Service.Board_Name = 'Solution Design')

Answer 1

Try to organize your code, something like
WITH source_date AS (
SELECT
v_rpt_Service.TicketNbr,
v_rpt_Service.Location,
v_rpt_Service.Board_Name,
v_rpt_Service.Status_Description,
v_rpt_Service.ClosedDesc,
v_rpt_Service.ServiceType,
v_rpt_Service.SubType_RecID,
v_rpt_Service.ServiceSubType,
v_rpt_Service.company_name,
v_rpt_Service.Summary,
v_rpt_Service.team_name,
v_rpt_Service.date_entered,
v_rpt_Service.entered_by,
v_rpt_Service.Date_Required,
v_rpt_Service.hours_budget,
v_rpt_Service.Hours_Scheduled,
Member.Member_ID,
v_rpt_Service.Territory,
CASE
WHEN Date_Required IS NULL THEN round((DATEDIFF(DAY,date_entered,GETDATE())+1)*.69,0)
ELSE round((DATEDIFF(DAY,date_required,getdate())+1)*.69,0)
END AS Age
FROM Member AS Member
INNER JOIN SR_Team AS SR_Team ON Member.Member_RecID = SR_Team.Member_RecID
INNER JOIN v_rpt_Service AS v_rpt_Service ON SR_Team.Description = v_rpt_Service.team_name
WHERE (v_rpt_Service.ClosedDesc = 'Open') AND (v_rpt_Service.Board_Name = 'Solution Design')
)
SELECT
sd.*,
CASE
WHEN sd.Age >= 1 AND sd.Age<5 THEN '1-5'
WHEN sd.Age >= 5 AND sd.Age<15 THEN '5-15'
WHEN sd.Age >= 15 AND sd.Age<30 THEN '15-30'
WHEN sd.Age >= 30 AND sd.Age<60 THEN '30-60'
WHEN sd.Age >= 60 AND sd.Age<90 THEN '60-90'
WHEN sd.Age >= 90 AND sd.Age<120 THEN '90-120'
WHEN sd.Age >= 120 THEN '120+'
ELSE 'Unknown'
END AS Aging
FROM source_date AS sd