9.2 issue with Sequence Numbers

Question

We are using OWB 9.2 and RDBMS 9.2 on windows NT.
When using set based functionality i.e. Merge Statement, or Row Based, we have noticed that our sequence object gets incremented during updates even though it is only associated with the insert and not the update.
Is this normal behaviour or an issue ???

Answer 1

Jagadish,
You will not get updates because you by default match on the keys on the table. In other words you emp_id and the seq.nextval are matched to what you have in the table and they will never match (because of the nextval).
Two things you can do:
- Change the composite key (e.g. change the design)
- Change the configuration in OWB
Let's look at the second one, what you must do is the following:
1) On the target table, select operator properties and find "Match by Constraint". Highlight that and change this setting to No Constraints.
You now are not using the constraint, so you must tell OWB what to match on. You do this by:
2) Highlight the EMPID column and select attribute properties
3) In the loading properties node set the following for EMPID:
Load column when inserting row => Yes
Load column when updating row => No
Match column when updating row => Yes
4) Highlight the other columns, for example ATTEMPT_COUNT and select attribute properties
5) In the loading properties node set the following for ATTEMTP_COUNT:
Load column when inserting row => Yes
Load column when updating row => Yes
Match column when updating row => No
This should allow you to update based on the EMPID alone.
Hope this helps,
Jean-Pierre