SQL / SSRS: The multi-part identifier " " could not be bound - sql

Question

Working on a report that currently is in two columns on two datasets, an dam trying to combine the datasets into one single query. When I do the following query, I get The multi-part identifier "fa.InternalUserID" could not be bound.
--TST Group
SELECT A.AuditID,
A.FileID,
A.Description,
A.UserID,
IU.FirstName + ' ' + IU.LastName AS UserName,
FM.FileNumber,
SWITCHOFFSET(CONVERT(datetimeoffset, A.Date),'-05:00') AS 'LocalDateTime',
CONVERT(VARCHAR(10), A.Date, 101) AS 'Date',
CONVERT(VARCHAR(10), A.Date, 14) AS 'UnadjustedTime',
COUNT(FA.FileActionsID) AS ActionCount
FROM FileMain fm
INNER JOIN InternalUser AS IU ON fa.InternalUserID = IU.InternalUserID
JOIN FileActions FA on FA.FileID = FM.FileID
LEFT OUTER JOIN Audit AS A ON A.FileID = FM.FileID
WHERE (FM.OfficeID = 1)
AND (A.Description = 'File Opened'
OR A.Description = 'File Closed')
AND (A.Date >= GETDATE() - 2)
AND (IU.InternalUserID IN
(
--ID's go here
)
)
ORDER BY UserName, A.AuditID
Here are the original two queries I am combining:
--TST Group
SELECT A.AuditID,
A.FileID,
A.Description,
A.UserID,
IU.FirstName + ' ' + IU.LastName AS UserName,
FM.FileNumber,
SWITCHOFFSET(CONVERT(datetimeoffset, A.Date),'-05:00') AS 'LocalDateTime',
CONVERT(VARCHAR(10), A.Date, 101) AS 'Date',
CONVERT(VARCHAR(10), A.Date, 14) AS 'UnadjustedTime',
COUNT(FA.FileActionsID) AS ActionCount
FROM Audit AS A
INNER JOIN InternalUser AS IU ON A.UserID = IU.InternalUserID
LEFT OUTER JOIN FileMain AS FM ON A.FileID = FM.FileID
WHERE (FM.OfficeID = 1)
AND (A.Description = 'File Opened'
OR A.Description = 'File Closed')
AND (A.Date >= GETDATE() - 2)
AND (IU.InternalUserID IN
(
--ID's Go here
)
)
ORDER BY UserName, A.AuditID
and
SELECT IU.FirstName AS NAME,
COUNT(FA.FileActionsID) AS ActionCount
FROM FileActions AS FA
INNER JOIN InternalUser AS IU ON FA.ReceivedUserID = IU.InternalUserID
WHERE (FA.ReceivedDate > GETDATE() - 0)
AND (FA.ReceivedUserID IN (
--ID's go here
)
)
GROUP BY IU.FirstName

Answer 1

You have your joins in the wrong order. Currently you are trying to join InternalUser and FileActions when you've only mentioned FileMain and InternalUser (in that order) - you can't specify a condition against a table that hasn't been introduced to the join yet:
FROM FileMain fm
INNER JOIN InternalUser AS IU ON fa.InternalUserID = IU.InternalUserID
JOIN FileActions FA on FA.FileID = FM.FileID
LEFT OUTER JOIN Audit AS A ON A.FileID = FM.FileID
Should be (with obligatory schema prefixes added):
FROM dbo.FileMain fm
INNER JOIN dbo.FileActions FA on FA.FileID = FM.FileID
INNER JOIN dbo.InternalUser AS IU ON FA.InternalUserID = IU.InternalUserID
LEFT OUTER JOIN dbo.Audit AS A ON A.FileID = FM.FileID