Handling update conflicts or overwriting of records from timesten to oracle
Hi Chris,
My question is this that I have read the documentation and found out the following:-
An update is committed on a cache table in an AWT cache group. The same update is committed on the cached Oracle table using a passthrough operation. The cache table update, which is automatically and asynchronously propagated to Oracle, may overwrite the passed through update that was processed directly on the cached Oracle table depending on when the propagated update and the passed through update is processed on Oracle.
To handle or to restrict this what is the option with which I can go because I want this as an exception that is to be handled but not to be ignored or overwritten by Timesten in database.
Moreover, I want to work with AWT cache group preferably.
Can you please help me with this part.
Chris,
First thanks for showing your interest:-
Let me explain it to you with different example:-
On two separate data stores (DS1, DS2), there is an AWT table for the same Oracle base table. A row is updated on DS1 and is committed. A row is updated on DS2 and is committed. Because the cache group behavior is asynchronous, the change on DS2 may be applied to the Oracle database before the change on DS1, resulting in the DS1 change overwriting the DS2 change.
I want to handle this overwriting so that I will be able to know which record is overwritten by which new value.
Or there is one more scenario:
If at some time my TimesTen is not connected to oracle database but I have the table cached in my TimesTen and some update is done on it for particular record and the same record is updated in the oracle database also with some different value then whenever I will connect my timesten to database it will overwrite the value which is updated earlier in database.
I hope now that you are able to understand what I am trying to do here.
Please suggest me some method to handle all these things.
Thanks for your support.
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Edited by: gags on Dec 23, 2010 12:30 PMHi,
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