Loading Type: DELETE/INSERT

Question

Hi,
OWB 9.2.0.x
I need to develop logic wherein the target rows would be deleted based on a condition (column value already present), and then insert new rows.
The DELETE/INSERT Loading Type on Target is just doing a blanket delete where criteria matches and inserting fresh rows, instead of deleting just those rows that match the criteria.
An alternative was to have a lookup, and take that to a splitter, and send matching row to a TARGET with Loading Type set to DELETE, and other set to another copy of the TARGET with Loading Type set to INSERT.
This also does not work properly, and behaves inconsistently.
Any help on this would be much appreciated.
Regards
Jojo

Answer 1

To put in an example:
We have to delete the records matching the input(staging), and then reinsert them.
That is input records will be like
1 a
1 c
5 a
5 b
3 a
Target may have something like
1 a
1 b
1 c
2 a
2 b
3 a
All records with first field as 1, 2 or 3 in staging should be deleted from target, and then the full staging gets inserted.
Final target would then become
1 a
1 c
2 a
2 b
5 a
5 b
3 a
An alternate solution that comes to mind is
Implement a delete mapping, and then do the inserts. But this would require two passes through the staging data.
Regards
Jojo Thomas