SQL combine two queries result into one dataset - sql-server

Question

I am trying to combine two SQL queries the first is
SELECT
EAC.Person.FirstName,
EAC.Person.Id,
EAC.Person.LastName,
EAC.Person.EmployeeId,
EAC.Person.IsDeleted,
Controller.Cards.SiteCode,
Controller.Cards.CardCode,
Controller.Cards.ActivationDate,
Controller.Cards.ExpirationDate,
Controller.Cards.Status,
EAC.[Group].Name
FROM
EAC.Person
INNER JOIN
Controller.Cards ON EAC.Person.Id = Controller.Cards.PersonId
INNER JOIN
EAC.GroupPersonMap ON EAC.Person.Id = EAC.GroupPersonMap.PersonId
INNER JOIN
EAC.[Group] ON EAC.GroupPersonMap.GroupId = EAC.[Group].Id
And the second one is
SELECT
IsActive, ActivationDateUTC, ExpirationDateUTC,
Sitecode + '-' + Cardcode AS Credential, 'Badge' AS Type,
CASE
WHEN isActive = 0
THEN 'InActive'
WHEN ActivationDateUTC > GetUTCDate()
THEN 'Pending'
WHEN ExpirationDAteUTC < GetUTCDate()
THEN 'Expired'
ELSE 'Active'
END AS Status
FROM
EAC.Credential
JOIN
EAC.WiegandCredential ON Credential.ID = WiegandCredential.CredentialId
WHERE
PersonID = '32'
Where I would like to run the second query for each user of the first query using EAC.Person.Id instead of the '32'.
I would like all the data to be returned in one Dataset so I can use it in Report Builder.
I have been fighting with this all day and am hoping one of you smart guys can give me a hand. Thanks in advance.

Answer 1

Based on your description in the comments, I understand that the connection between the two datasets is actually the PersonID field, which exists in both EAC.Credential and EAC.Person; however, in EAC.Credential, duplicate values exist for PersonID, and you want only the most recent one for each PersonID.
There are a few ways to do this, and it will depend on the number of rows returned, the indexes, etc., but I think maybe you're looking for something like this...?
SELECT
EAC.Person.FirstName
,EAC.Person.Id
,EAC.Person.LastName
,EAC.Person.EmployeeId
,EAC.Person.IsDeleted
,Controller.Cards.SiteCode
,Controller.Cards.CardCode
,Controller.Cards.ActivationDate
,Controller.Cards.ExpirationDate
,Controller.Cards.Status
,EAC.[Group].Name
,X.IsActive
,X.ActivationDateUTC
,X.ExpirationDateUTC
,X.Credential
,X.Type
,X.Status
FROM EAC.Person
INNER JOIN Controller.Cards
ON EAC.Person.Id = Controller.Cards.PersonId
INNER JOIN EAC.GroupPersonMap
ON EAC.Person.Id = EAC.GroupPersonMap.PersonId
INNER JOIN EAC.[Group]
ON EAC.GroupPersonMap.GroupId = EAC.[Group].Id
CROSS APPLY
(
SELECT TOP 1
IsActive
,ActivationDateUTC
,ExpirationDateUTC
,Sitecode + '-' + Cardcode AS Credential
,'Badge' AS Type
,'Status' =
CASE
WHEN isActive = 0
THEN 'InActive'
WHEN ActivationDateUTC > GETUTCDATE()
THEN 'Pending'
WHEN ExpirationDateUTC < GETUTCDATE()
THEN 'Expired'
ELSE 'Active'
END
FROM EAC.Credential
INNER JOIN EAC.WiegandCredential
ON EAC.Credential.ID = EAC.WiegandCredential.CredentialId
WHERE EAC.Credential.PersonID = EAC.Person.PersonID
ORDER BY EAC.Credential.ID DESC
) AS X
-- Optionally, you can also add conditions to return specific rows, i.e.:
-- WHERE EAC.Person.PersonID = 32
This option uses a CROSS APPLY, which means that every row of the first dataset will return additional values from the second dataset, based on the criteria that you described. In this CROSS APPLY, I'm joining the two datasets based on the fact that PersonID exists in both EAC.Person (in your first dataset) as well as in EAC.Credential. I then specify that I want only the TOP 1 row for each PersonID, with an ORDER BY specifying that we want the most recent (highest) value of ID for each PersonID.
The CROSS APPLY is aliased as "X", so in your original SELECT you now have several values prefixed with the X. alias, which just means that you're taking these fields from the second query and attaching them to your original results.
CROSS APPLY requires that a matching entry exists in both subsets of data, much like an INNER JOIN, so you'll want to check and make sure that the relevant values exist and are returned correctly.
I think this is pretty close to the direction you're trying to go. If not, let me know and I'll update the answer. Good luck!

Answer 2

Try like this;
select Query1.*, Query2.* from (
SELECT
EAC.Person.FirstName,
EAC.Person.Id as PersonId,
EAC.Person.LastName,
EAC.Person.EmployeeId,
EAC.Person.IsDeleted,
Controller.Cards.SiteCode,
Controller.Cards.CardCode,
Controller.Cards.ActivationDate,
Controller.Cards.ExpirationDate,
Controller.Cards.Status,
EAC.[Group].Name
FROM
EAC.Person
INNER JOIN
Controller.Cards ON EAC.Person.Id = Controller.Cards.PersonId
INNER JOIN
EAC.GroupPersonMap ON EAC.Person.Id = EAC.GroupPersonMap.PersonId
INNER JOIN
EAC.[Group] ON EAC.GroupPersonMap.GroupId = EAC.[Group].Id)
Query1 inner join (SELECT top 100
IsActive, ActivationDateUTC, ExpirationDateUTC,
Sitecode + '-' + Cardcode AS Credential, 'Badge' AS Type,
CASE
WHEN isActive = 0
THEN 'InActive'
WHEN ActivationDateUTC > GetUTCDate()
THEN 'Pending'
WHEN ExpirationDAteUTC < GetUTCDate()
THEN 'Expired'
ELSE 'Active'
END AS Status
FROM
EAC.Credential
JOIN
EAC.WiegandCredential ON Credential.ID = WiegandCredential.CredentialId
ORDER BY EAC.Credential.ID DESC) Query2 ON Query1.PersonId = Query2.PersonID
Just select two queries to join them like Query1 and Query2 by equaling PersonId data.