I have two tables
Customers
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CustomerID FromFlatNo ToFlatNo
1 11 16
2 6 10
2 13 18
Flat_Booking
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CustomerID FromFlatNo ToFlatNo
1 11 16
2 1 5
2 3 4
I want to get all the flat numbers against customer 2 which are there in Customers Table, but not in
Flat_Booking
eg : customer 2 result is 1,2,3,4,5