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Hello,

I use the UniAlerter (UniDAC 3.00.0.11 for Delphi 2010) to receive events from an Oracle 11g database.
I placed two buttons on a form. The first button starts the alerter (UniAlerter1.Start) and the second one stops the alerter (UniAlerter1.Stop).

If I stop the alerter i will get the oracle errors below:
ORA-01013: user requested cancel of current operation
ORA-06512: at "SYS.DBMS_LOCK", line 82
ORA-06512: at "SYS.DBMS_LOCK", line 110
ORA-06512: at "SYS.DBMS_ALERT", line 230
ORA-06512: at line 1

Any idea to avoid the error?

Thanks.

Hello,

I cannot reproduce the problem.
Please send a complete small sample to alexp*devart*com to demonstrate it.
Most likely the problem is connected with the Oracle server settings.
Also you can try to download and install the latest version of UniDAC (3.60.0.16) and try again.

Hello,

Thank you for the information.
We have reproduced the problem.
We will notify you as soon as we have any results.

Hello,

We have fixed the problem.
This fix will be included in the next build.