remove duplicates in sql query - sql

Question

I've been working on a query that should :
business logic - show all members who attended the gym(selected from dropdown) within a specified date range.
Problem encountered -I realised that results shows duplicates of which mustn't , may you please assist.
Below is the query I used.
Declare #StartDate datetime = '29 May 2014'
Declare #EndDate datetime = '29 May 2014'
DEclare #SiteID INT =14
Declare #StartTime datetime = '05:00 AM'
Declare #EndTime datetime = '10:00 PM'
Declare #Start datetime = cast (#StartDate + ' '+ #StartTime as datetime)
Declare #End datetime = cast(#EndDate + ' ' + #EndTime as datetime )
SELECT isnull(atc.totalaccepted,0) TotalAcceptedVisits,ISNULL(att.TotalOverrideVisits, 0) AS TotalOverrides, isnull(att1.TotalOverrideDenieds,0) as TotalDenies, ast.Name as VisitiedSite, c.FirstName + ' ' + c.LastName as Name, md.MemRefNo
FROM Contacts c
inner JOIN Attendance a on a.ContactGUID = c.GUID
inner JOIN MemberDetail md on md.ContactGUID = c.GUID
inner JOIN Sites ast on a.SiteID = ast.ID
OUTER APPLY
(
SELECT a1.contactguid,COUNT(*) totalaccepted
FROM Attendance a1
WHERE a1.contactguid = c.guid
AND (a1.IsSwipeSuccessful = 1)
AND a1.accessoverridereasonid IS NULL
AND a1.AttendDate BETWEEN #Start AND #End
group by a1.contactguid
)atc
outer APPLY
(
SELECT a2.contactguid, COUNT(*) TotalOverrideVisits
FROM Attendance a2
WHERE a2.contactguid = c.guid
And (a.IsSwipeSuccessful = 1)
AND a2.accessoverridereasonid IS NOT NULL
AND a2.AttendDate BETWEEN #Start AND #End
and (a2.SiteID = #SiteID OR #SiteID = 0)
group by a2.contactguid
) att
OUTER APPLY
(
SELECT a3.contactguid,COUNT(*) TotalOverrideDenieds
FROM Attendance a3
WHERE a3.contactguid = c.guid
AND a3.IsSwipeSuccessful = 0
AND a3.accessoverridereasonid IS NULL
AND a3.AttendDate BETWEEN #Start AND #end
group by a3.contactguid
) att1
where (a.SiteID = #SiteID OR #SiteID = 0)
and a.AttendDate BETWEEN #Start AND #End
order by md.MemRefNo
Results: as you can see below there are members repeating themselves, I only need to see one row of each member with the number of total visits if any, overrides if any and denied visits if any.
TotalAcceptedVisits TotalOverrides TotalDenies VisitiedSite Name memRefNo
1 0 0 Groblersdal Jean T G0030
1 1 1 Groblersdal Koky Bakkes G0032
1 0 1 Groblersdal Koky Bakkes G0032
1 1 1 Groblersdal Koky Bakkes G0032
1 0 0 Groblersdal Naomi Fisher G0035
1 0 0 Groblersdal Arthur Bart G0089
1 0 0 Groblersdal Tulinda Swi G0034
1 1 0 Groblersdal Devon Mooi G0008
1 1 0 Groblersdal Devon Mooi G0008

Answer 1

I think you will need something like this:
Declare #StartDate datetime = '29 May 2014'
Declare #EndDate datetime = '29 May 2014'
DEclare #SiteID INT =14
Declare #StartTime datetime = '05:00 AM'
Declare #EndTime datetime = '10:00 PM'
Declare #Start datetime = cast (#StartDate + ' '+ #StartTime as datetime)
Declare #End datetime = cast(#EndDate + ' ' + #EndTime as datetime )
SELECT CASE WHEN TotalAcceptedVisits > 0 THEN 1 ELSE 0 END AS TotalAcceptedVisits,
CASE WHEN TotalOverrides > 0 THEN 1 ELSE 0 END AS TotalOverrides,
CASE WHEN TotalDenies > 0 THEN 1 ELSE 0 END AS TotalDenies,
VisitiedSite, Name, MemRefNo
FROM
(SELECT SUM(isnull(atc.totalaccepted,0)) TotalAcceptedVisits, SUM(ISNULL(att.TotalOverrideVisits, 0)) AS TotalOverrides, SUM(isnull(att1.TotalOverrideDenieds,0)) as TotalDenies, ast.Name as VisitiedSite, c.FirstName + ' ' + c.LastName as Name, md.MemRefNo
FROM Contacts c
inner JOIN Attendance a on a.ContactGUID = c.GUID
inner JOIN MemberDetail md on md.ContactGUID = c.GUID
inner JOIN Sites ast on a.SiteID = ast.ID
OUTER APPLY
(
SELECT a1.contactguid,COUNT(*) totalaccepted
FROM Attendance a1
WHERE a1.contactguid = c.guid
AND (a1.IsSwipeSuccessful = 1)
AND a1.accessoverridereasonid IS NULL
AND a1.AttendDate BETWEEN #Start AND #End
group by a1.contactguid
)atc
outer APPLY
(
SELECT a2.contactguid, COUNT(*) TotalOverrideVisits
FROM Attendance a2
WHERE a2.contactguid = c.guid
And (a.IsSwipeSuccessful = 1)
AND a2.accessoverridereasonid IS NOT NULL
AND a2.AttendDate BETWEEN #Start AND #End
and (a2.SiteID = #SiteID OR #SiteID = 0)
group by a2.contactguid
) att
OUTER APPLY
(
SELECT a3.contactguid,COUNT(*) TotalOverrideDenieds
FROM Attendance a3
WHERE a3.contactguid = c.guid
AND a3.IsSwipeSuccessful = 0
AND a3.accessoverridereasonid IS NULL
AND a3.AttendDate BETWEEN #Start AND #end
group by a3.contactguid
) att1
where (a.SiteID = #SiteID OR #SiteID = 0)
and a.AttendDate BETWEEN #Start AND #End
GROUP BY atc.totalaccepted, att.TotalOverrideVisits, att1.TotalOverrideDenieds, ast.Name, c.FirstName + ' ' + c.LastName, md.MemRefNo) TB
ORDER BY MemRefNo
Since, you don't want the SUM of the values, then you can do something as above which basically embeds your SELECT as a subquery and then has a CASE statement to see whether the Total Values is greater than 0, if so return 1 else 0.