I have an existing master table. I have a input stream of updates. I want to match on key and when I have a match to compare other values. Where these other values differ I want to update the master from the input stream.
I believe I can use Table Comparison to match on key and then compare selected fields. This will result in records flagged as updates.
Once I have these records how do I apply them to the master table?
I do not want to perform slow dimension changing which end dates the old row and creates a new dated row. Rather I want to simply replace the changed values in the target master table.
Do I have to copy the entire master table to a new master to apply the updates? The security of the target system may prevent this. Ideally I'd like to update the records in place.
Thanks
Cliff