Edit D:\app\Administrator\product\11.2.0\dbhome_1\oc4j\j2ee\oc4j_applications\applications\em\em\online_help\tdddg\tdddg_triggers007.htm

Edit D:\app\Administrator\product\11.2.0\dbhome_1\oc4j\j2ee\oc4j_applications\applications\em\em\online_help\tdddg\tdddg_triggers007.htm

<!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">
<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>
<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" />

<meta name="generator" content="Oracle DARB XHTML Converter (Mode = ohj/ohw) - Version 5.1.1 Build 005" />
<meta name="date" content="2009-04-21T9:46:25Z" />
<meta name="robots" content="noarchive" />
<meta name="doctitle" content="Creating Triggers that Log LOGON and LOGOFF Events" />
<meta name="relnum" content="11g Release 2 (11.2)" />
<meta name="partnum" content="E10766-01" />
<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="tdddg_triggers006.htm" title="Previous" type="text/html" />
<link rel="next" href="tdddg_triggers008.htm" title="Next" type="text/html" />
<title>Creating Triggers that Log LOGON and LOGOFF Events</title>
</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="tdddg_triggers006.htm"><img width="24" height="24" src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br />
<span class="icon">Previous</span></a>&nbsp;</td>
<td align="center"><a href="tdddg_triggers008.htm"><img width="24" height="24" src="./dcommon/gifs/rightnav.gif" alt="Next" /><br />
<span class="icon">Next</span></a></td>
</tr>
</table>
<p><a id="BABFBEJH" name="BABFBEJH"></a><a id="TDDDG52900" name="TDDDG52900"></a></p>
<div class="sect2">
<h1>Creating Triggers that Log LOGON and LOGOFF Events</h1>
<a name="BEGIN" id="BEGIN"></a>
<p>This tutorial shows how to use the <code>CREATE</code> <code>TRIGGER</code> statement to create two triggers, <code>hr_logon_trigger</code> and <code>hr_logoff_trigger</code>. <span class="italic">After</span> someone logs on as user <code>HR</code>, <code>hr_logon_trigger</code> adds a row to the table <code>HR_USERS_LOG</code>. <span class="italic">Before</span> someone logs off as user <code>HR</code>, <code>hr_logoff_trigger</code> adds a row to the table <code>HR_USERS_LOG</code>.</p>
<p><code>hr_logon_trigger</code> and <code>hr_logoff_trigger</code> are <a id="sthref586" name="sthref586"></a><a id="sthref587" name="sthref587"></a><span class="bold">system triggers</span>. <code>hr_logon_trigger</code> is a <a id="sthref588" name="sthref588"></a><a id="sthref589" name="sthref589"></a><span class="bold">BEFORE trigger</span>, and <code>hr_logoff_trigger</code> is an <a id="sthref590" name="sthref590"></a><a id="sthref591" name="sthref591"></a><span class="bold">AFTER trigger</span>.</p>
<p>These triggers are <span class="italic">not</span> part of the sample application that the tutorials and examples in this document show how to develop and deploy.</p>
<a id="TDDDG252" name="TDDDG252"></a>
<p class="subhead2">To create HR_USERS_LOG, HR_LOGON_TRIGGER, and HR_LOGOFF_TRIGGER:</p>
<ol>
<li>
<p>Create the <code>HR_USERS_LOG</code> table:</p>
<pre xml:space="preserve" class="oac_no_warn">
CREATE TABLE hr_users_log (
  user_name VARCHAR2(30),
  activity VARCHAR2(20),
  event_date DATE
);
</pre></li>
<li>
<p>Create <code>hr_logon_trigger</code>:</p>
<pre xml:space="preserve" class="oac_no_warn">
CREATE OR REPLACE TRIGGER hr_logon_trigger
  <span class="bold">AFTER LOGON</span>
  <span class="bold">ON HR.SCHEMA</span>
BEGIN
  INSERT INTO hr_users_log (user_name, activity, event_date)
  VALUES (USER, 'LOGON', SYSDATE);
END;
</pre></li>
<li>
<p>Create <code>hr_logoff_trigger</code>:</p>
<pre xml:space="preserve" class="oac_no_warn">
CREATE OR REPLACE TRIGGER hr_logoff_trigger
  <span class="bold">BEFORE LOGOFF</span>
  <span class="bold">ON HR.SCHEMA</span>
BEGIN
  INSERT INTO hr_users_log (user_name, activity, event_date)
  VALUES (USER, 'LOGOFF', SYSDATE);
END;
</pre></li>
</ol>
<div class="helpinfonotealso">
<h2>Related Topics</h2>
<p><a href="tdddg_triggers002.htm#BABDAGJJ">Creating Triggers</a></p>
</div>
</div>



<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&nbsp;&copy;&nbsp;1996, 2009,&nbsp;Oracle&nbsp;and/or&nbsp;its&nbsp;affiliates.&nbsp;All&nbsp;rights&nbsp;reserved.</span><br />
<a href="./dcommon/html/cpyr.htm"><span class="copyrightlogo">Legal Notices</span></a></td>
<td align="center"><a href="tdddg_triggers006.htm"><img width="24" height="24" src="./dcommon/gifs/leftnav.gif" alt="Previous" /><br />
<span class="icon">Previous</span></a>&nbsp;</td>
<td align="center"><a href="tdddg_triggers008.htm"><img width="24" height="24" src="./dcommon/gifs/rightnav.gif" alt="Next" /><br />
<span class="icon">Next</span></a></td>
</tr>
</table>
</div>

</body>
</html>

Ms-Dos/Windows Unix Write backup

jsp File Browser version 1.2 by www.vonloesch.de