I do have cumbersome problem...I have a table built out from an inputlookup search. We have n-columns in this table but a key ones are the key_field and a timestamp_A.
We would like to run a subsearch within the inputlookup where, for each value in key_field, we check the most recent value of a timestamp_B in another index. If this value is more recent than the one in timestamp_A we update the timestamp value with the B value, otherwise we leave the timestamp_A.
Assuming that both timestamps are in the same format we have the following restrictions: the value in timestamp_A might be empty, in this case if exist a timestamp_B value OK otherwise we leave empty.
Very much appreciated any help that could be provided.