100 lines
5.7 KiB
HTML
100 lines
5.7 KiB
HTML
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<title>CPI432C - All access paths were considered for file &1</title>
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<body id="cpi432c"><a name="cpi432c"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">CPI432C - All access paths were considered for file &1</h1>
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<div>
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th colspan="2" align="center" valign="middle" id="d0e19">CPI432C</th>
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</tr>
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</thead>
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<tbody><tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e19 ">Message Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e19 ">All access paths were considered for file &1.</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e19 ">Cause Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e19 ">The query optimizer considered all access paths built over member &3
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of file &1 in library &2. <p></p>
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The list below shows the access
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paths considered. If file &1 in library &2 is a logical file then
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the access paths specified are actually built over member &9 of physical
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file &7 in library &8. <p></p>
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Following each access path name
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in the list is a reason code which explains why the access path was not used.
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A reason code of 0 indicates that the access path was used to implement the
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query. <p></p>
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The reason codes and their meanings follow: <ol><li>Access path was not in a valid state. The system invalidated the access
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path.</li>
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<li>Access path was not in a valid state. The user requested that the access
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path be rebuilt.</li>
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<li>Access path is a temporary access path (resides in library QTEMP) and
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was not specified as the file to be queried.</li>
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<li>The cost to use this access path, as determined by the optimizer, was
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higher than the cost associated with the chosen access method.</li>
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<li>The keys of the access path did not match the fields specified for the
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ordering/grouping criteria. For distributed file queries, the access path
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keys must exactly match the ordering fields if the access path is to be used
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when ALWCPYDTA(*YES or *NO) is specified.</li>
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<li>The keys of the access path did not match the fields specified for the
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join criteria.</li>
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<li>Use of this access path would not minimize delays when reading records
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from the file. The user requested to minimize delays when reading records
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from the file.</li>
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<li>The access path cannot be used for a secondary file of the join query
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because it contains static select/omit selection criteria. The join-type of
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the query does not allow the use of select/omit access paths for secondary
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files.</li>
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<li>File &1 contains record ID selection. The join-type of the query forces
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a temporary access path to be built to process the record ID selection.</li>
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<li>and greater - View the second level message text of the next message issued
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(CPI432D) for an explanation of these reason codes.</li>
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</ol>
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</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e19 ">Recovery Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e19 ">The user may want to delete any access paths no longer needed.</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 class="section"><p>The optimizer considered all indexes built over the specified
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table. Since the optimizer examined all indexes for the table, it determined
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the current best access to the table.</p>
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</div>
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<div class="section"><p>The message help contains a list of the indexes. With each index
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a reason code is added. The reason code explains why the index was or was
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not used.</p>
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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="pimes.htm" title="You can evaluate the structure and performance of the given SQL statements in a program using informational messages put in the job log by the database manager.">Query optimization performance information messages</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="cpi432d.htm">CPI432D - Additional access path reason codes were used</a></div>
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</div>
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</div>
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</body>
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