158 lines
9.3 KiB
HTML
158 lines
9.3 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Database monitor view 3008 - Subquery Processing" />
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<meta name="DC.subject" content="summary row, subquery processing" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Database monitor view 3008 - Subquery Processing</title>
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</head>
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<body id="t3008"><a name="t3008"><!-- --></a>
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<img src="./delta.gif" alt="Start of change" /><!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Database monitor view 3008 - Subquery Processing</h1>
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<div><div class="example"> <pre><strong>Create View</strong> QQQ3008 as
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(<strong>SELECT</strong> QQRID as Row_ID,
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QQTIME as Time_Created,
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QQJFLD as Join_Column,
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QQRDBN as Relational_Database_Name,
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QQSYS as System_Name,
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QQJOB as Job_Name,
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QQUSER as Job_User,
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QQJNUM as Job_Number,
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QQI9 as Thread_ID,
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QQUCNT as Unique_Count,
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QQUDEF as User_Defined,
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QQQDTN as Unique_SubSelect_Number,
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QQQDTL as SubSelect_Nested_Level,
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QQMATN as Materialized_View_Subselect_Number,
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QQMATL as Materialized_View_Nested_Level,
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QVP15E as Materialized_View_Union_Level,
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QVP15A as Decomposed_Subselect_Number,
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QQI1 as Original_QDT_Count,
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QQI2 as Merged_QDT_Count,
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QQI3 as Final_QDT_Count,
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QVRCNT as Unique_Refresh_Counter
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<strong>FROM</strong> UserLib/DBMONTable
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<strong>WHERE</strong> QQRID=3008)
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</pre>
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</div>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="hsides" border="1" rules="rows"><caption>Table 1. QQQ3008 - Subquery Processing</caption><thead align="left"><tr><th align="left" valign="bottom" width="33.26996197718631%" id="d0e43">View Column Name</th>
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<th align="left" valign="bottom" width="12.737642585551331%" id="d0e45">Table Column Name</th>
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<th align="left" valign="bottom" width="53.99239543726235%" id="d0e47">Description</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Row_ID</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQRID</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Row identification</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Time_Created</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQTIME</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Time row was created</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Join_Column</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQJFLD</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Join column (unique per job)</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Relational_Database_Name</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQRDBN</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Relational database name</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">System_Name</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQSYS</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">System name </td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Job_Name</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQJOB</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Job name</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Job_User</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQUSER</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Job user </td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Job_Number</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQJNUM</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Job number</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Thread_ID</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQI9</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Thread identifier</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Unique_Count</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQUCNT</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Unique count (unique per query)</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">User_Defined</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQUDEF</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">User defined column</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Unique_SubSelect_Number</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQQDTN</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Unique subselect number</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">SubSelect_Nested_Level</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQQDTL</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Subselect nested level</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Materialized_View_Subselect_Number</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQMATN</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Materialized view subselect number</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Materialized_View_Nested_Level</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQMATL</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Materialized view nested level</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Materialized_View_Union_Level</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QVP15E</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Materialized view union level</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Decomposed_Subselect_Number</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QVP15A</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Decomposed query subselect number, unique across all
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decomposed subselects</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Original_QDT_Count</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQI1 </td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Original number of QDTs</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Merged_QDT_Count</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQI2 </td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Number of QDTs merged</td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Final_QDT_Count</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QQI3 </td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Final number of QDTs </td>
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</tr>
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<tr><td valign="top" width="33.26996197718631%" headers="d0e43 ">Unique_Refresh_Counter</td>
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<td valign="top" width="12.737642585551331%" headers="d0e45 ">QVRCNT</td>
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<td valign="top" width="53.99239543726235%" headers="d0e47 ">Unique refresh counter </td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="lofdds.htm" title="The following examples show the different optional SQL view format that you can create with the SQL shown. The column descriptions are explained in the tables following each example. These views are not shipped with the server, and you must create them, if you choose to do so. These views are optional and are not required for analyzing monitor data.">Optional database monitor SQL view format</a></div>
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</div>
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</div>
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<img src="./deltaend.gif" alt="End of change" /></body>
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</html>
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