Every now and then, you will encounter a situation when you need to find which ConfigMgr Collection(s) a specific computer is a member of for troubleshooting purposes. I came across this TechNet post which describes a SQL query to find the collection information.

Run the following query in SQL against the SMS Database:

select v_FullCollectionMembership.CollectionID As ‘Collection ID’, v_Collection.Name As ‘Collection Name’, v_R_System.Name0 As ‘Machine Name’ from v_FullCollectionMembership
JOIN v_R_System on v_FullCollectionMembership.ResourceID = v_R_System.ResourceID
JOIN v_Collection on v_FullCollectionMembership.CollectionID = v_Collection.CollectionID
Where v_R_System.Name0=’ClientMachineName’

Note: Replace ClientMachineName with the name of the Client Machine in question. Additionally, you can also make a Custom Report to get this information if you intend to use this frequently:

The SQL Statement For this Report would be as follows:

select v_FullCollectionMembership.CollectionID As ‘Collection ID’, v_Collection.Name As ‘Collection Name’, v_R_System.Name0 As ‘Machine Name’ from v_FullCollectionMembership
JOIN v_R_System on v_FullCollectionMembership.ResourceID = v_R_System.ResourceID
JOIN v_Collection on v_FullCollectionMembership.CollectionID = v_Collection.CollectionID
Where v_R_System.Name0=@Comp

Click on Prompts while providing the SQL Statement, and Create a new prompt named ‘Comp’ without the quotes. Provide a SQL Statement for the prompt as follows:

select Name0 from v_R_System

Source: http://blogs.technet.com/b/configurationmgr/archive/2009/08/24/how-to-find-the-collection-membership-information-of-a-specific-client-machine.aspx