198 lines
12 KiB
HTML
198 lines
12 KiB
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<meta name="DC.Title" content="Database monitor view 3025 - Distinct Processing" />
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<meta name="DC.subject" content="summary row, distinct processing" />
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<meta name="keywords" content="summary row, distinct processing" />
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<meta name="DC.Identifier" content="t3025" />
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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 3025 - Distinct Processing</title>
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</head>
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<body id="t3025"><a name="t3025"><!-- --></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 3025 - Distinct Processing</h1>
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<div><div class="example"> <pre><strong>Create View</strong> QQQ3025 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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QVP15B as Total_Number_Decomposed_SubSelects,
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QVP15C as Decomposed_SubSelect_Reason_Code,
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QVP15D as Starting_Decomposed_SubSelect,
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QVRCNT as Unique_Refresh_Counter,
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QVPARPF as Parallel_Prefetch,
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QVPARPL as Parallel_PreLoad,
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QVPARD as Parallel_Degree_Requested,
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QVPARU as Parallel_Degree_Used,
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QVPARRC as Parallel_Degree_Reason_Code,
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QQEPT as Estimated_Processing_Time,
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QVCTIM as Estimated_Cumulative_Time,
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QQREST as Estimated_Rows_Selected
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<strong>FROM</strong> UserLib/DBMONTable
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<strong>WHERE</strong> QQRID=3025) </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. QQQ3025 - Distinct Processing</caption><thead align="left"><tr><th align="left" valign="bottom" width="35.34136546184739%" id="d0e43">View Column Name</th>
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<th align="left" valign="bottom" width="10.441767068273093%" id="d0e45">Table Column Name</th>
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<th align="left" valign="bottom" width="54.21686746987952%" id="d0e47">Description</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Row_ID</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQRID</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Row identification </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Time_Created</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQTIME</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Time row was created </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Join_Column</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQJFLD</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Join column (unique per job)</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Relational_Database_Name</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQRDBN</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Relational database name </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">System_Name</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQSYS</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">System name</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Job_Name</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQJOB</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Job name </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Job_User</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQUSER</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Job user </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Job_Number</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQJNUM</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Job number</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Thread_ID</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQI9</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Thread identifier </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Unique_Count</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQUCNT</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Unique count (unique per query)</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">User_Defined</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQUDEF</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">User defined column </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Unique_SubSelect_Number</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQQDTN</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Unique subselect number</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">SubSelect_Nested_Level</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQQDTL</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Subselect nested level </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Materialized_View_Subselect_Number</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQMATN</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Materialized view subselect number</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Materialized_View_Nested_Level</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQMATL</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Materialized view nested level</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Materialized_View_Union_Level</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVP15E</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Materialized view union level</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Decomposed_Subselect_Number</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVP15A</td>
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<td valign="top" width="54.21686746987952%" 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="35.34136546184739%" headers="d0e43 ">Total_Number_Decomposed_SubSelects</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVP15B</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Total number of decomposed subselects</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Decomposed_SubSelect_Reason_Code</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVP15C</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Decomposed query subselect reason code</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Starting_Decomposed_SubSelect</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVP15D</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Decomposed query subselect number for the first decomposed
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subselect</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Unique_Refresh_Counter</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVRCNT</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Unique refresh counter </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Parallel_Prefetch</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVPARPF</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Parallel Prefetch (Y/N)</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Parallel_PreLoad</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVPARPL</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Parallel Preload (index used)</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Parallel_Degree_Requested</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVPARD</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Parallel degree requested (index used) </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Parallel_Degree_Used</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVPARU</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Parallel degree used (index used)</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Parallel_Degree_Reason_Code</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVPARRC</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Reason parallel processing was limited (index used)</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Estimated_Processing_Time</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQEPT</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Estimated processing time, in seconds </td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Estimated_Cumulative_Time</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QVCTIM</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Estimated cumulative time, in seconds</td>
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</tr>
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<tr><td valign="top" width="35.34136546184739%" headers="d0e43 ">Estimated_Rows_Selected</td>
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<td valign="top" width="10.441767068273093%" headers="d0e45 ">QQREST</td>
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<td valign="top" width="54.21686746987952%" headers="d0e47 ">Estimated rows selected</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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