My apologies regarding the late reply.
Here is the raw SQL generated by the Query Builder tool that returns only assets that have an Asset Owner assigned.
Please note that I'm trying to get all assets in a category to return regardless of Asser Owner being populated (but I still need that field to show in the report).
I'm trying to get away with building reports using the query builder rather than doing raw SQL queries as I don't really know much about SQL and the Query Builder is supposed to be the tool for those who want to build reports w/o SQL experience.
DECLARE @v1_TrusteeScope nvarchar(155)
SET @v1_TrusteeScope = N'{2E1F478A-4986-4223-9D1E-B5920A63AB41},{582029E2-FC5B-4717-8808-B80D6EF0FD67},{B760E9A9-E4DB-404C-A93F-AEA51754AA4F},{E42CD697-8344-4FF2-A8E3-A652ED55E539}'
DECLARE @g7_AssetUserOwners uniqueidentifier
SET @g7_AssetUserOwners = 'ed35a8d1-bf60-4771-9dde-092c146c485a'
SELECT
[vri2_Docking Station].[Guid] AS [_ItemGuid],
[vri2_Docking Station].[Name],
[vri9_User].[Name] AS [Owner],
[dca5_Manufacturer].[Model],
[dca5_Manufacturer].[Manufacturer],
[dca4_Serial Number].[Serial Number],
[dca6_Barcode].[Barcode],
[dca3_Procurement].[Life Cycle],
[vri9_User].[Guid] AS [_UserGuid]
FROM
[vRM_Docking_Station_Item] AS [vri2_Docking Station]
LEFT OUTER JOIN [Inv_Procurement] AS [dca3_Procurement]
ON ([vri2_Docking Station].[Guid] = [dca3_Procurement].[_ResourceGuid])
LEFT OUTER JOIN [Inv_Serial_Number] AS [dca4_Serial Number]
ON ([vri2_Docking Station].[Guid] = [dca4_Serial Number].[_ResourceGuid])
LEFT OUTER JOIN [Inv_Manufacturer] AS [dca5_Manufacturer]
ON ([vri2_Docking Station].[Guid] = [dca5_Manufacturer].[_ResourceGuid])
LEFT OUTER JOIN [Inv_Barcode] AS [dca6_Barcode]
ON ([vri2_Docking Station].[Guid] = [dca6_Barcode].[_ResourceGuid])
LEFT OUTER JOIN ([ResourceAssociation] AS [ra8_Asset User Owners]
LEFT OUTER JOIN [vRM_User_Item] AS [vri9_User]
ON ([ra8_Asset User Owners].[ChildResourceGuid] = [vri9_User].[Guid]))
ON ([vri2_Docking Station].[Guid] = [ra8_Asset User Owners].[ParentResourceGuid])
WHERE
(
(
([ra8_Asset User Owners].[ResourceAssociationTypeGuid] = @g7_AssetUserOwners)
OR
([ra8_Asset User Owners].[ResourceAssociationTypeGuid] IS NULL)
)
AND
([vri2_Docking Station].[Guid] IN (SELECT [ResourceGuid] FROM [ScopeMembership] WHERE [ScopeCollectionGuid] IN (SELECT [ScopeCollectionGuid] FROM dbo.fnGetTrusteeScopeCollections(@v1_TrusteeScope))))
AND
(
([vri9_User].[Guid] IN (SELECT [ResourceGuid] FROM [ScopeMembership] WHERE [ScopeCollectionGuid] IN (SELECT [ScopeCollectionGuid] FROM dbo.fnGetTrusteeScopeCollections(@v1_TrusteeScope))))
OR
([vri9_User].[Guid] IS NULL)
)
)