Rollback using ADO.Recordset!

Posted on 2002-04-15
Last Modified: 2008-03-06

I use ADO to add/update/delete record to my Oracle DB.

In using a recrodset's method --> AddNew, Update.

Do I need to do a rollback if the AddNew, Update fails?

If yes, how can I do this?

I found there exists a rollback method at the conneciton object, but not at recordset object.

My table at oralce db contains a field which is of type BLOB.

I only know how to use the recordset object to add record to this table which will add a binary file to the database.

In my case, how can I do a rollback if the operation fails?

Thanks for your advice!
Question by:DoraMeMe
LVL 43

Expert Comment

ID: 6941384
DoraMeMe: You need to use the following methodology to incorporate rollback/commit process. It is effectively the same as the transaction control methods you would apply in your oracle stored procedures or scripts just implemented through ADO.

- Pseudo-code :

If Connection.Errors.Count > 0 Then 'Rollback
End If

Everything contained in the Recordset.ProcessData section is contained within the transaction and all actions will be either committed or rolled back at the end of the process.

As for the necessity of doing a rollback etc for an addnew/update, it all depends on your database, the criticality of the data etc.

Accepted Solution

corvanderlinden earned 50 total points
ID: 6941480
If you do not use transactions and the AddNew or Update fails you do not need to rollback, it just fails

Expert Comment

ID: 6942075
corvanderlinden is correct for the single action (insert/update) you have internal transactions.
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Expert Comment

ID: 6943105
Unless you are proposing that you are updating mutliple tables with in one transactions
sub thisSub()
On error goto ErrHandl
exit sub sub


end sub

LVL 49

Expert Comment

ID: 7654082
Hi DoraMeMe,
It appears that you have forgotten this question. I will ask Community Support to close it unless you finalize it within 7 days. I will ask a Community Support Moderator to:

    Split points between: TimCottee and corvanderlinden

DoraMeMe, if you think your question was not answered at all or if you need help, just post a new comment here; Community Support will help you.  DO NOT accept this comment as an answer.

EXPERTS: If you disagree with that recommendation, please post an explanatory comment.
DanRollins -- EE database cleanup volunteer

Expert Comment

ID: 7755273
per recommendation

Community Support Moderator @Experts Exchange

TimCottee points for you at:

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