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<h1 class="topictitle1">Database monitor view 3003 - Query Sort</h1>
<div><div class="example"> <pre><strong>Create View</strong> QQQ3003 as
(<strong>SELECT</strong> QQRID as Row_ID,
QQTIME as Time_Created,
QQJFLD as Join_Column,
QQRDBN as Relational_Database_Name,
QQSYS as System_Name,
QQJOB as Job_Name,
QQUSER as Job_User,
QQJNUM as Job_Number,
QQI9 as Thread_ID,
QQUCNT as Unique_Count,
QQUDEF as User_Defined,
QQQDTN as Unique_SubSelect_Number,
QQQDTL as SubSelect_Nested_Level,
QQMATN as Materialized_View_Subselect_Number,
QQMATL as Materialized_View_Nested_Level,
QVP15E as Materialized_View_Union_Level,
QVP15A as Decomposed_Subselect_Number,
QVP15B as Total_Number_Decomposed_SubSelects,
QVP15C as Decomposed_SubSelect_Reason_Code,
QVP15D as Starting_Decomposed_SubSelect,
QQSTIM as Start_Timestamp,
QQETIM as End_Timestamp,
QQRSS as Sorted_Rows,
QQI1 as Sort_Space_Size,
QQI2 as Pool_Size,
QQI3 as Pool_Id,
QQI4 as Internal_Sort_Buffer_Length,
QQI5 as External_Sort_Buffer_Length,
QQRCOD as Reason_Code,
QQI7 as Union_Reason_Subcode,
QVBNDY as Bound,
QVRCNT as Unique_Refresh_Counter,
QVPARPF as Parallel_Prefetch,
QVPARPL as Parallel_PreLoad,
QVPARD as Parallel_Degree_Requested,
QVPARU as Parallel_Degree_Used,
QVPARRC as Parallel_Degree_Reason_Code,
QQEPT as Estimated_Processing_Time,
QVCTIM as Estimated_Cumulative_Time,
QQAJN as Estimated_Join_Rows,
QQJNP as Join_Position,
QQI6 as DataSpace_Number,
QQC21 as Join_Method,
QQC22 as Join_Type,
QQC23 as Join_Operator,
QVJFANO as Join_Fanout,
QVFILES as Join_Table_Count
<strong>FROM</strong> UserLib/DBMONTable
<strong>WHERE</strong> QQRID=3003)
</pre>
</div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" width="100%" frame="hsides" border="1" rules="rows"><caption>Table 1. QQQ3003 - Query Sort</caption><thead align="left"><tr><th align="left" valign="bottom" width="35.26011560693642%" id="d0e43">View Column Name</th>
<th align="left" valign="bottom" width="14.258188824662813%" id="d0e45">Table Column Name</th>
<th align="left" valign="bottom" width="50.481695568400774%" id="d0e47">Description</th>
</tr>
</thead>
<tbody><tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Row_ID</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQRID</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Row identification</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Time_Created</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQTIME</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Time row was created</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Join_Column</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQJFLD</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Join column (unique per job)</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Relational_Database_Name</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQRDBN</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Relational database name</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">System_Name</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQSYS</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">System name</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Job_Name</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQJOB</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Job name</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Job_User</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQUSER</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Job user</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Job_Number</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQJNUM</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Job number</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Thread_ID</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQI9</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Thread identifier</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Unique_Count</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQUCNT</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Unique count (unique per query)</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">User_Defined</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQUDEF</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">User defined column </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Unique_SubSelect_Number</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQQDTN </td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Unique subselect number</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">SubSelect_Nested_Level</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQQDTL</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Subselect nested level</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Materialized_View_Subselect_Number</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQMATN </td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Materialized view subselect number</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Materialized_View_Nested_Level</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQMATL</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Materialized view nested level</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Materialized_View_Union_Level</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVP15E</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Materialized view union level</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Decomposed_Subselect_Number</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVP15A</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Decomposed query subselect number, unique across all
decomposed subselects</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Total_Number_Decomposed_SubSelects</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVP15B</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Total number of decomposed subselects</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Decomposed_SubSelect_Reason_Code</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVP15C</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Decomposed query subselect reason code</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Starting_Decomposed_SubSelect</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVP15D</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Decomposed query subselect number for the first decomposed
subselect</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Start_Timestamp</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQSTIM </td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Start timestamp, when available </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">End_Timestamp</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQETIM</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">End timestamp, when available </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Sorted_Rows</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQRSS</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Estimated number of rows selected or sorted. </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Sort_Space_Size</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQI1</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Estimated size of sort space. </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Pool_Size</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQI2</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Pool size</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Pool_Id</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQI3</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Pool id</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Internal_Sort_Buffer_Length</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQI4 </td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Internal sort buffer length </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">External_Sort_Buffer_Length</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQI5</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">External sort buffer length </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Reason_Code</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQRCOD</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Reason code <ul><li>F1 - Query contains grouping columns (GROUP BY) from more that one table,
or contains grouping columns from a secondary table of a join query that cannot
be reordered.</li>
<li>F2 - Query contains ordering columns (ORDER BY) from more that one table,
or contains ordering columns from a secondary table of a join query that cannot
be reordered.</li>
<li>F3 - The grouping and ordering columns are not compatible.</li>
<li>F4 - DISTINCT was specified for the query.</li>
<li>F5 - UNION was specified for the query.</li>
<li>F6 - Query had to be implemented using a sort. Key length of more than
2000 bytes or more than 120 key columns specified for ordering.</li>
</ul>
</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Reason_Code (continued)</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">&nbsp;</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 "><ul><li>F7 - Query optimizer chose to use a sort rather than an index to order
the results of the query.</li>
<li>F8 - Perform specified row selection to minimize I/O wait time.</li>
<li>FC - The query contains grouping fields and there is a read trigger on
at least one of the physical files in the query.</li>
</ul>
</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Union_Reason_Subcode</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQI7</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Reason subcode for Union: <ul><li>51 - Query contains UNION and ORDER BY</li>
<li>52 - Query contains UNION ALL</li>
</ul>
</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Bound</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVBNDY</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">I/O or CPU bound. Possible values are: <ul><li>I - I/O bound</li>
<li>C - CPU bound</li>
</ul>
</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Unique_Refresh_Counter</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVRCNT</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Unique refresh counter </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Parallel_Prefetch</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVPARPF</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Parallel Prefetch (Y/N)</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Parallel_PreLoad</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVPARPL</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Parallel Preload (index used)</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Parallel_Degree_Requested</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVPARD</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Parallel degree requested (index used)</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Parallel_Degree_Used</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVPARU </td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Parallel degree used (index used)</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Parallel_Degree_Reason_Code</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVPARRC</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Reason parallel processing was limited (index used)</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Estimated_Processing_Time</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQEPT</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Estimated processing time, in seconds</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Estimated_Cumulative_Time</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVCTIM</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Estimated cumulative time, in seconds</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Estimated_Join_Rows</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQAJN</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Estimated number of joined rows</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Join_Position</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQJNP</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Join position - when available </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">DataSpace_Number</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQI6</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Dataspace number </td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Join_Method</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQC21</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Join method - when available <ul><li>NL - Nested loop</li>
<li>MF - Nested loop with selection</li>
<li>HJ - Hash join</li>
</ul>
</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Join_Type</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQC22</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Join type - when available <ul><li>IN - Inner join</li>
<li>PO - Left partial outer join</li>
<li>EX - Exception join</li>
</ul>
</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Join_Operator</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QQC23</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Join operator - when available <ul><li>EQ - Equal</li>
<li>NE - Not equal</li>
<li>GT - Greater than</li>
<li>GE - Greater than or equal</li>
<li>LT - Less than</li>
<li>LE - Less than or equal</li>
<li>CP - Cartesian product</li>
</ul>
</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Join_Fanout</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVJFANO</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Join fan out. Possible values are: <ul><li>N - Normal join situation where fanout is allowed and each matching row
of the join fanout is returned.</li>
<li>D - Distinct fanout. Join fanout is allowed however none of the join fanout
rows are returned.</li>
<li>U - Unique fanout. Join fanout is not allowed. Error situation if join
fanout occurs.</li>
</ul>
</td>
</tr>
<tr><td valign="top" width="35.26011560693642%" headers="d0e43 ">Join_Table_Count</td>
<td valign="top" width="14.258188824662813%" headers="d0e45 ">QVFILES</td>
<td valign="top" width="50.481695568400774%" headers="d0e47 ">Number of tables joined </td>
</tr>
</tbody>
</table>
</div>
</div>
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<div class="familylinks">
<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>
</div>
</div>
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