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I have a table with
User_ID, Resource_ID, Location_ID, INstance_ID
1,1,1,1
1,1,2,2
1,1,2,3
2,2,3,4
2,3,3,5
2,3,5,6
3,1,2,7
3,1,7,8
4,4,1,9
4,4,2,10
5,5,1,11
1,1,3,14
4,4,1,15
1,1,10,18
1,1,1,19
5,6,1,12
6,7,3,13
6,7,1,17
I need a list of instance_IDs where
For a specific User...