Problem Counting Items For an Individual Row - tsql

Question

I need to find the count for ActivityID and AdditionalActivityID for each DailyFieldRecordID based on when GroupID = 260 and ItemID is either 1302,1303,1305,1306. The problem I'm having is that regardless of how many rows for each individual DailyFieldRecordID there are, there can only be one ActivityID and one AdditionalActivityID regardless of how many rows comply with the constraints.
Say someone is filling out a form and they list what their Activity for the day was and also what other activity they might have. They can only list one primary activity(ActivityID) and one secondary activity(AdditionalActivity). But during those activities they could participate with multiple groups(GroupID) or people(ItemID). So when I'm running this query I'm able to separate the rows based on the constraints, but I only want to count how many activities they participated in, which will either be 1 or 2 for each DailyFieldRecordID, regardless of how many groups or people were involved. Right now my query is counting each ActivityID and AdditionalActivityID for each row that meets the criteria, which can give me many more than just 1 or 2 for each DailyFieldRecordID. I'm just not sure how I would go about doing this. Any feedback is greatly appreciated.
DailyFieldRecordID: GroupID: ItemID: ActivityID: AdittionalActivityID:
3369320 260 1302 37 0
3369320 260 1305 37 0
3369320 210 2222 37 0
3369320 250 2222 37 0
3372806 260 1302 56 56
3372806 260 1305 56 56
3372806 250 2222 56 56
3388888 260 2222 45 32
Expected Result:
DailyFieldRecordID: Count:
3369320 1
3372806 2
Current Result:
DailyFieldRecordID: Count:
3369320 2
3372806 4
'
select a.DailyFieldRecordID,
count(case when a.ActivityID <>0 then 1 else null end) +
count(case when a.AdditionalActivityID <>0 then 1 else null end) as count
from AB953 a
where a.GroupID= 260 and exists(
select b.DailyFieldRecordID
from AB953 b
where a.DailyFieldRecordID = b.DailyFieldRecordID and b.ItemID in (1302,1303,1305,1306))
group by DailyFieldRecordID

Answer 1

I get this result when trying your data:
DailyfieldrecordID Count
3369320 3
3372806 2
3388888 1
SELECT DailyFieldRecordID,
COUNT(CASE WHEN ActivityID <>0 then 1 else 0 end +
CASE WHEN AdditionalActivityID <>0 then 1 else 0 end) as Count
from Foo
where GroupID= 260 and exists(
select b.DailyFieldRecordID
from fOO b
where DailyFieldRecordID = b.DailyFieldRecordID and b.ItemID in (1302,1303,1305,1306))
group by DailyFieldRecordID
New query: you might need to fiddle with this, not sure if your data is wrong or not....... cant get it to select 3 and then 2:
SELECT DailyFieldRecordID,
COUNT(CASE WHEN ActivityID <>0 then 1 else 0 end +
CASE WHEN AdditionalActivityID <>0 then 1 else 0 end) as Count
from Foo
where GroupID= 260 and DailyFieldRecordID IN(
select b.DailyFieldRecordID
from fOO b
where b.ItemID IN(1302,1303,1305,1306))
group by DailyFieldRecordID

Answer 2

This should do it:
;WITH CTE AS
(
SELECT A.DailyFieldRecordID
,ActivityID = IIF(A.ActivityID = 0, NULL, A.ActivityID)
,AdittionalActivityID = IIF(A.AdittionalActivityID = 0, NULL, A.AdittionalActivityID)
FROM AB953 A
WHERE A.GroupID = 260
AND A.ItemID IN (1302,1303,1305,1306)
)
SELECT DailyFieldRecordID
,CNT = COUNT(DISTINCT ActivityID) + COUNT(DISTINCT AdittionalActivityID)
FROM CTE
GROUP BY DailyFieldRecordID;
I created this DDL and test data for testing:
DROP TABLE IF EXISTS AB953
GO
CREATE TABLE AB953 (
DailyFieldRecordID INT, GroupID INT, ItemID INT, ActivityID INT, AdittionalActivityID INT)
INSERT INTO AB953
VALUES
( 3369320, 260, 1302, 37, 0 )
,( 3369320, 260, 1305, 37, 0 )
,( 3369320, 210, 2222, 37, 0 )
,( 3369320, 250, 2222, 37, 0 )
,( 3372806, 260, 1302, 56, 56 )
,( 3372806, 260, 1305, 56, 56 )
,( 3372806, 250, 2222, 56, 56 )
,( 3388888, 260, 2222, 45, 32 )
GO