405 lines
10 KiB
HTML
405 lines
10 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>Start SQL Database Monitor (QQQSSDBM) API</title>
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</head>
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<body>
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<h2>Start SQL Database Monitor (QQQSSDBM) API</h2>
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<div class="box" style="width: 80%;">
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<br>
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Required Parameter Group:<br>
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<br>
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<table width="100%">
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<tr>
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<td align="center" valign="top" width="10%">1</td>
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<td align="left" valign="top" width="50%">Qualified job name</td>
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<td align="left" valign="top" width="15%">Input</td>
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<td align="left" valign="top" width="25%">Char(26)</td>
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</tr>
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<tr>
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<td align="center" valign="top">2</td>
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<td align="left" valign="top">Memory handle</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Char(10)</td>
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</tr>
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<tr>
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<td align="center" valign="top">3</td>
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<td align="left" valign="top">Storage size</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">4</td>
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<td align="left" valign="top">Free storage method</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Char(10)</td>
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</tr>
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<tr>
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<td align="center" valign="top">5</td>
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<td align="left" valign="top">Number of types to monitor</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Binary(4)</td>
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</tr>
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<tr>
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<td align="center" valign="top">6</td>
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<td align="left" valign="top">Subtypes to monitor</td>
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<td align="left" valign="top">Input</td>
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<td align="left" valign="top">Array(*) of Char(10)</td>
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</tr>
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<tr>
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<td align="center" valign="top">7</td>
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<td align="left" valign="top">Error code</td>
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<td align="left" valign="top">I/O</td>
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<td align="left" valign="top">Char(*)</td>
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</tr>
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</table>
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<br>
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Default Public Authority: *USE<br>
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<br>
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Threadsafe: Conditional; see <a href="#usage_notes">Usage
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Notes</a>.<br>
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<br>
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</div>
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<p>The Start SQL Database Monitor (QQQSSDBM) API starts the memory-based SQL
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database monitor. Associated APIs include the following:</p>
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<ul>
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<li>Clear SQL Database Monitor Statistics (QQQCSDBM)</li>
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<li>Dump SQL Database Monitor (QQQDSDBM)</li>
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<li>End SQL Database Monitor (QQQESDBM)</li>
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<li>Query SQL Database Monitor (QQQQSDBM)</li>
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</ul>
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<br>
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<h3>Authorities and Locks</h3>
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<dl compact>
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<dt><em>Current User Profile</em></dt>
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<dd>*JOBCTL</dd>
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</dl>
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<br>
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<h3>Required Parameter Group</h3>
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<dl>
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<dt><strong>Qualified job name</strong></dt>
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<dd>INPUT; CHAR(26)
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<p>The job to be monitored. The qualified job name has three parts:</p>
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td width="15%" valign="top"><em>Job name</em></td>
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<td width="85%" valign="top">CHAR(10). A specific job name, a generic name, or
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one of the following special values:
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<table cellpadding="5">
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<tr>
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<td valign="top"><em>* or *CURRENT</em></td>
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<td valign="top">Only the job that this program is running in. The
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rest of the qualified job name parameter must be blank.</td>
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</tr>
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<tr>
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<td valign="top"><em>*ALL</em></td>
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<td valign="top">All jobs. The rest of the job name parameter must be
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blank.</td>
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</tr>
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</table>
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</td>
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</tr>
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<tr>
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<td valign="top"><em>User name</em></td>
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<td valign="top">CHAR(10). A specific user profile name.</td>
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</tr>
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<tr>
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<td valign="top"><em>Job number</em></td>
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<td valign="top">CHAR(6). A specific job number.</td>
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</tr>
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</table>
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</dd>
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<dd><br>
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</dd>
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<dt><strong>Memory handle</strong></dt>
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<dd>INPUT; CHAR(10)
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<p>The handle used for consolidating data. This parameter is only valid when
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the qualified job name parameter is not *ALL (that is, you are starting the
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monitor on a specific job). If multiple jobs are monitoring with the same
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memory handle, their database activity will be consolidated together.</p>
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<p>If *JOB is specified, the job's database activity will be monitored in its
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own memory area (the activity will not be consolidated with any other job's
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database activity, unless the other job explicitly specifies this job's job
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number as the memory handle.). For example, assume QQQSSDBM is issued by job
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111111 with a memory handle of *JOB. This implies a memory handle of 111111 is
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used. If job 999999 issues QQQSSDBM and names a memory handle of 111111, then
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both jobs 111111 and 999999 will use memory area 111111. Consequently, the
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database monitor data for both jobs will be summarized within this memory
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area.</p>
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<p>The possible values are:</p>
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<table width="100%" cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td width="15%" valign="top"><em>User defined</em></td>
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<td width="85%" valign="top">Up to 6-character value to name a memory area that
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will contain consolidated data. Only the first 6 characters will be used for a
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named memory.</td>
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</tr>
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<tr>
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<td valign="top"><em>*JOB</em></td>
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<td valign="top">Use the memory area associated with the job, and do not
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consolidate data with any other job.</td>
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</tr>
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</table>
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<br>
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</dd>
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<dt><strong>Storage size</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The maximum amount of storage to use for in-memory data (specified in
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megabytes). A value of -1 implies no maximum.</p>
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</dd>
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<dt><strong>Free storage method</strong></dt>
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<dd>INPUT; CHAR(10)
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<p>When maximum storage is reached in the storage size parameter, the method
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used to free storage. The possible value is:</p>
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td width="15%" valign="top"><em>*LRU</em></td>
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<td width="85%" valign="top">Free the statement least recently used</td>
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</tr>
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</table>
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<br>
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</dd>
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<dt><strong>Number of types to monitor</strong></dt>
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<dd>INPUT; BINARY(4)
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<p>The number of types passed in the subtypes to monitor array.</p>
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</dd>
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<dt><strong>Subtypes to monitor</strong></dt>
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<dd>INPUT; Array(*) of CHAR(10)
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<p>The list of all subtypes that should be monitored. The possible values
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are:</p>
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<table cellpadding="5">
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<!-- cols="15 85" -->
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<tr>
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<td width="15%" valign="top"><em>KEYT_3000</em></td>
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<td width="85%" valign="top">Summary: Arrival sequence (file QAQQ3000)</td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_3001</em></td>
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<td valign="top">Summary: Index used (file QAQQ3001)</td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_3002</em></td>
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<td valign="top">Summary: Index created (file QAQQ3002)</td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_3003</em></td>
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<td valign="top">Summary: Sort (file QAQQ3003)</td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_3004</em></td>
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<td valign="top">Summary: Temporary file (file QAQQ3004)</td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_3007</em></td>
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<td valign="top">Summary: Optimizer time-out or all access paths considered
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(file QAQQ3007)</td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_3008</em></td>
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<td valign="top">Summary: Subselect processing (file QAQQ3008)</td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_3010</em></td>
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<td valign="top">Summary: Host variable values (file QAQQ3010)</td>
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</tr>
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<tr>
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<td valign="top"><img src="delta.gif" alt="Start of Change"><em>KEYT_3030</em></td>
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<td valign="top">Summary: Materialized query tables considered (file QAQQ3030)<img src="deltaend.gif" alt="End of Change"></td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_TEXT</em></td>
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<td valign="top">SQL statement text (file QAQQTEXT)</td>
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</tr>
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<tr>
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<td valign="top"><em>KEYT_QRYI</em></td>
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<td valign="top">Summary: General SQL information including statement count,
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maximum runtime, time last used, and so forth. This subtype is always monitored
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because it is required for monitoring all other subtypes (file QAQQQRYI). It
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should still be specified, and is required if it is the only subtype to be
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monitored.</td>
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</tr>
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<tr>
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<td valign="top"><em>*EDSQL</em></td>
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<td valign="top">Monitor all subtypes. If this option is specified, the number
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of types to monitor should be set to 1, and no other subtypes should be
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requested.</td>
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</tr>
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</table>
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<br>
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</dd>
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<dt><strong>Error code</strong></dt>
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<dd>I/O; CHAR(*)
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<p>The structure in which to return error information. For the format of the
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structure, see <a href="../apiref/error.htm#hdrerrcod">Error Code Parameter</a>.</p>
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</dd>
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</dl>
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<br>
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<h3><a name="usage_notes">Usage Notes</a></h3>
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<p>This function is threadsafe but not thread enabled. Database monitor data is
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collected in the threaded process but summarized at the job level.</p>
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<br>
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<h3>Error Messages</h3>
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<table width="100%" cellpadding="3">
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<tr>
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<th align="left" valign="top">Message ID</th>
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<th align="left" valign="top">Error Message Text</th>
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</tr>
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<tr>
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<td width="15%" valign="top">CPD0172 D</td>
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<td width="85%" valign="top">Parameters passed on CALL do not match those
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required.</td>
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</tr>
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<tr>
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<td valign="top">CPF1321 E</td>
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<td valign="top">Job &1 user &2 job number &3 not found.</td>
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</tr>
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<tr>
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<td valign="top">CPF222E E</td>
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<td valign="top">&1 special authority is required.</td>
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</tr>
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<tr>
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<td valign="top">CPF3CF1 E</td>
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<td valign="top">Error code parameter not valid.</td>
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</tr>
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<tr>
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<td valign="top">CPF436C E</td>
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<td valign="top">Job specified is already being monitored.</td>
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</tr>
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<tr>
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<td valign="top">CPF436E E</td>
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<td valign="top">Job &1 user &2 job number &3 is not active.</td>
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</tr>
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</table>
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<br>
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<hr>
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API introduced: V4R3
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#top_Of_Page">Top</a> | <a href=
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"file1.htm">Database and File APIs</a> | <a href="aplist.htm">APIs by
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category</a></td>
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</tr>
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</table>
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</center>
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<br>
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</body>
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</html>
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