dbms_alert_info & locks

From: Alroy Mascranghe <alroy_at_informatics.lk>
Date: Tue, 09 Apr 2002 20:03:30 -0800
Message-ID: <F001.004403CF.20020409200330@fatcity.com>

Hi All

We have a Pro C daemon which does a DBMS_aLERT.'waitone' for a specific alert. From the database side applications do a signal to start the daemon. So we have a locking situation where we found out that the rows in sql area for two different users were the same

        UPDATE DBMS_ALERT_INFO SET CHANGED='Y',MESSAGE=:b1 WHERE NAME = UPPER(:b2)
And when we queried the rowid which was locked by the users they were all waiting on this row

	select * from DBMS_ALERT_INFO where
	rowid= 'AAAAZwAABAAAAVUAAB';

What is the reason for this to caused locks ?

Thanks
Alroy
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Author: Alroy Mascranghe
  INET: alroy_at_informatics.lk

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