How to perform merge operation using Data services designer?

Question

I am new here and new to Data Services Desinger as well.
And currently, I want to do a merge operation using query transform or table comparison transform. But sadly, neither one of them is giving me what I want.
So, wonder if you could help clarify if either one of them could achieve MERGE operation between and source and target tables?
if positive, then how?
PS:
by MERGE, i mean, if data exists in target table, then only do update, else, do insert. same with the standard MERGE operation of oracle.
If you need any more info, let me know!
Thanks in advance.

Answer 1

You can do this.
You don't need the Tabe_Comparison transform actually.
Just query the data you need and output the flow from your query to your target table.
Then, you'll have to check the "Auto correct load" option: this will insert new lines and updates old ones. One checked, you can ckeck the "Auto correct load" checkbox.
By default, BODS will know a line already exists based uppon the primary key columns of your target table. If you want to change the columns used to determine if a line should be inserted or updated, use the "Use input key" checkbox (and define some PK column in your query).
Hope this helps
Guillaume