Ok, now you need to specify your use case more precisely.
What exactly do you want the update to do?
Something like the SAP BW InfoCube request compression maybe?
What should happen if there are multiple values in table U for the same key in T?
Ok, now you need to specify your use case more precisely.
What exactly do you want the update to do?
Something like the SAP BW InfoCube request compression maybe?
What should happen if there are multiple values in table U for the same key in T?