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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> <meta http-equiv="Content-Style-Type" content="text/css" /> <meta http-equiv="Content-Script-Type" content="text/javascript" /> <title>Modifying Queues</title> <meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 005" /> <meta name="date" content="2009-06-04T17:1:3Z" /> <meta name="robots" content="noarchive" /> <meta name="doctitle" content="Modifying Queues" /> <meta name="relnum" content="11g Release 2 (11.2)" /> <meta name="partnum" content="E10703-01" /> <link rel="copyright" href="./dcommon/html/cpyr.htm" title="Copyright" type="text/html" /> <link rel="stylesheet" href="./dcommon/css/blafdoc.css" title="Oracle BLAFDoc" type="text/css" /> <link rel="contents" href="toc.htm" title="Contents" type="text/html" /> <link rel="prev" href="tdpii_messaging020.htm" title="Previous" type="text/html" /> <link rel="next" href="tdpii_messaging022.htm" title="Next" type="text/html" /> <script src="./callback.js" type="text/javascript"></script> <noscript>Your browser does not support JavaScript. This help page requires JavaScript to render correctly.</noscript> </head> <body> <div class="zz-skip-header"><a href="#BEGIN">Skip Headers</a></div> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr valign="bottom"> <td align="left"></td> <td align="center"><a href="tdpii_messaging020.htm"><img src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br /> <span class="icon">Previous</span></a> </td> <td align="center"><a href="tdpii_messaging022.htm"><img src="./dcommon/gifs/rightnav.gif" alt="Next" /><br /> <span class="icon">Next</span></a></td> </tr> </table> <p><a id="CHDEBJHA" name="CHDEBJHA"></a><a id="TDPII044" name="TDPII044"></a></p> <div class="sect1"><!-- infolevel="all" infotype="General" --> <h1>Modifying Queues<a id="sthref647" name="sthref647"></a><a id="sthref648" name="sthref648"></a></h1> <a name="BEGIN" id="BEGIN"></a> <p>You can use Enterprise Manager to modify some of the properties of an existing queue, including the following properties:</p> <ul> <li> <p><span class="bold">Maximum Retries:</span> The number of dequeuing attempts allowed on a message before the message is moved to the exception queue. If there is poor connectivity in your messaging environment, then a connection might be lost while an application is in the process of dequeuing messages. In such environment, you might increase the number of maximum retries allowed so that applications can try to dequeue messages a number of times before the messages are moved to the exception queue.</p> </li> <li> <p><span class="bold">Retry Delay:</span> The amount of time after which a message is scheduled for processing again after an application rollback. If there is poor connectivity in your messaging environment, then you might want applications to wait for a set period of time after a failed attempt to dequeue messages. In such environments, you might increase the retry delay setting to specify the amount of time to wait.</p> </li> <li> <p><span class="bold">Retention Time:</span> The amount of time that a message is retained in a queue after the message has been dequeued by all of its consumers. If you want to track messages that have been consumed, then you might set a retention time that enables you to record information about the messages that have been stored in the queue.</p> </li> </ul> <p>You can set these properties to values that work best with the applications that dequeue messages from the queue.</p> <p class="orderedlisttitle">To modify a queue: </p> <ol> <li> <p>In Oracle Enterprise Manager, log in to the database as the Oracle Streams administrator.</p> </li> <li> <p>Go to the Database Home page.</p> </li> <li> <p>Click <span class="bold">Data Movement</span> to open the Data Movement subpage.</p> </li> <li> <p>Click <img src="shortcut.png" alt="callback" border="0" /><a href="javascript:void(0);" onclick="redirectEMpage('STREAMS_MESSAGING');"><span class="bold">Manage Advanced Queues</span></a> to open the Streams page.</p> </li> <li> <p>Select the queue that you want to modify. If necessary, use the search tool to find the queue, and then select it.</p> </li> <li> <p>Click <span class="bold">Edit</span> to open the Edit Queue page.</p> </li> <li> <p>Modify one or more queue properties.</p> </li> <li> <p>Click <span class="bold">Apply</span> to save your changes.</p> </li> </ol> <div class="helpinfonote"> <p><span class="bold">Note: </span>You can also use the <a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=ARPLS111','newWindow').focus()"><code>DBMS_AQADM.ALTER_QUEUE</code></a> procedure to modify a queue.</p> </div> <div class="helpinfonotealso"> <h2>Related Topics</h2> <p><a href="tdpii_messaging001.htm#CHDIJFHB">About Messaging</a></p> <p><a href="tdpii_messaging008.htm#CHDBACBE">Tutorial: Sending Messages Between Oracle Databases</a></p> <p><a href="tdpii_messaging015.htm#CHDGEHCF">Tutorial: Configuring Message Notifications</a></p> <p><a href="tdpii_messaging022.htm#BABBBFAI">Modifying Queue Tables</a></p> <p><a href="tdpii_messaging024.htm#CHDDICBF">Monitoring a Messaging Environment</a></p> </div> </div> <!-- class="sect1" --> <!-- Start Footer --> <div class="footer"> <table class="simple oac_no_warn" summary="" cellspacing="0" cellpadding="0" width="100%"> <col width="86%" /> <col width="*" /> <tr> <td align="left"><span class="copyrightlogo">Copyright © 2007, 2009, Oracle and/or its affiliates. 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