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POODP.NET Query based notification in Oracle
 

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    <p>am trying to use the query based notifications, but it seems to switch over to the object based notification for some reason. My environment is Oracle 11.2 ( I believe you need 11.1 or above for query based to work) and I have a select statement which retrieves a column which is of type NUMBER. (Again here my understanding is that only varchar2 and number columns work). I seem to get every change notification on the table and not just my flltered dataset</p> <p>As an example I've created a sample table called test_db_notification with a single column of type NUMBER.</p> <p>Added two entries in there as follows:</p> <pre><code>SELECT rowid,column1 FROM test_db_notification; ROWID COLUMN1 AAAERnAAKAAEurNAAI 54 AAAERnAAKAAEurPAAA 63 </code></pre> <p>Here's my code to register for notification:</p> <pre><code>OracleCommand _cmdObj = _connObj.CreateCommand(); _cmdObj.CommandText = " SELECT column1 FROM test_db_notification where column1 = 63"; _dep = new OracleDependency(_cmdObj); _dep.QueryBasedNotification = true; _dep.OnChange += new OnChangeEventHandler(_dep_OnChange); _cmdObj.Notification.IsNotifiedOnce = false; _cmdObj.AddRowid = true; _cmdObj.ExecuteNonQuery(); </code></pre> <p>When I register and change the value of column1 where the current value is 54, I get back a notification saying the ROWID for 54 has been updated. I was expecting not to receive any notifications since my original query looks only at <code>column1 = 63</code>. </p> <p>Am I missing something here?</p> <p>Thanks</p>
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