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    <td align="right" class="bar"> <!-- InstanceBeginEditable name="Section Title" -->
      <h1>ODXSQL - Commands</h1>
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      <p><a href="#syntax">Syntax</a></p>
      <p><a href="#options">Options</a></p>
      <p><a href="#example">Example</a></p>
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      <h2>UPDATE STATISTICS</h2>
      <p>UPDATE STATISTICS evaluates a database or table for statistical information 
        and outputs it to three files: tables.tdf, columns.tdf, keywords.ost. 
        By default, these files are output to the directory containing the Omnidex 
        environment file.</p>
      <p>The tdf (tab-delimited file) files can be opened with Microsoft Excel 
        and ost (Omnidex Stand-Alone Table) file can be attached for further analysis.</p>
      <p>These files contain statistical information such as cardinality, average 
        and max lengths, and data types and lengths.</p>
      <p>tables.tdf is a tab-delimited file in tabular format consisting of one 
        row for each table defined in the Omnidex environment file. This file 
        can be opened in Microsoft Excel for analysis. The statistics for each 
        table are as follows:</p>
      <ul>
        <li>Environment - the logical environment name as defined in the Omnidex 
          environment file.</li>
        <li>Database - the logical database name as defined in the Omnidex environment 
          file.</li>
        <li>Table - the logical table name as defined in the Omnidex environment 
          file.</li>
        <li>Columns - the number of columns in the table, including pseudo-columns 
          defined in the Omnidex environment file.</li>
        <li>Native Cols - the number or native columns in the table.</li>
        <li>Pseudo Cols - the number of pseudo-columns defined in the Omnidex 
          environment file.</li>
        <li>Reclen -</li>
        <li>Native Reclen -</li>
        <li>ODX Reclen - </li>
        <li>Cardinality - the cardinality of the table, which is the number of 
          rows in the table.</li>
      </ul>
      <p>columns.tdf is a tab-delimited file in tabular format consisting of one 
        row for each column defined in the Omnidex environment file. </p>
      <p class="line">&nbsp;</p>
      <h3><a name="syntax"></a>Syntax</h3>
      <p class="ex">UPDATE STATISTICS FOR &lt;DATABASE database | TABLE table&gt; 
        [WITH options]</p>
      <p></p>
      <p class="indent">UPDATE STATISTICS FOR<br>
        Required</p>
      <p class="indent">DATABASE database | TABLE table<br>
        Required. The DATABASE or TABLE keyword is required followed by the database 
        or table name as defined in the Omnidex environment file.</p>
      <p class="indent">WITH options<br>
        Optional. A comma separated list of options to apply to this command.</p>
      <p class="line">&nbsp;</p>
      <h3><a name="options"></a>Options</h3>
      <p>&nbsp;</p>
      <p class="line">&nbsp;</p>
      <h3><a name="example"></a>Example</h3>
      <p class="ex">&gt; connect pubs.env</p>
      <p class="ex">&gt; update statistics for table authors<br>
        Updating statistics for table AUTHORS</p>
      <p class="ex">&gt;</p>
      <p>The output of tables.tdf will be in tabular format with one row for each 
        table. The example below shows one table's statistics in columnar format 
        because of width limitations in this html page. </p>
      <table width="50%" border="0" cellspacing="0" cellpadding="0">
        <tr> 
          <td><p class="ex">Environment</p></td>
          <td><p class="ex">PUBS_ENV</p></td>
        </tr>
        <tr> 
          <td><p class="ex">Database</p></td>
          <td><p class="ex">PUBS</p></td>
        </tr>
        <tr> 
          <td><p class="ex">Table</p></td>
          <td><p class="ex">AUTHORS</p></td>
        </tr>
        <tr> 
          <td><p class="ex">Columns</p></td>
          <td><p class="ex">9</p></td>
        </tr>
        <tr> 
          <td><p class="ex">Native Cols</p></td>
          <td><p class="ex">9</p></td>
        </tr>
        <tr> 
          <td><p class="ex">Pseudo Cols</p></td>
          <td><p class="ex">0</p></td>
        </tr>
        <tr> 
          <td><p class="ex">Reclen</p></td>
          <td><p class="ex">156</p></td>
        </tr>
        <tr> 
          <td><p class="ex">Native Reclen</p></td>
          <td><p class="ex">156</p></td>
        </tr>
        <tr> 
          <td><p class="ex">ODX Reclen</p></td>
          <td><p class="ex">156</p></td>
        </tr>
        <tr> 
          <td><p class="ex">Cardinality</p></td>
          <td><p class="ex">25</p></td>
        </tr>
      </table>
      <p>The output of columns.tdf will be in tabular format with one row for 
        each column. The example below shows one column's statistics in columnar 
        format because of width limitations in this html page.</p>
      <table width="50%" border="0" cellspacing="0" cellpadding="0">
                    <tr> 
                      <td><p class="ex">Environment</p></td>
                      <td><p class="ex">PUBS_ENV</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Database</p></td>
                      <td><p class="ex">PUBS</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Table</p></td>
                      <td><p class="ex">AUTHORS</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Column</p></td>
                      <td><p class="ex">AU_LNAME</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Datatype</p></td>
                      <td><p class="ex">C STRING</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Length</p></td>
                      <td><p class="ex">41</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Min Len</p></td>
                      <td><p class="ex">4</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Max Len</p></td>
                      <td><p class="ex">14</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Avg Len</p></td>
                      <td><p class="ex">7.36</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Cardinality</p></td>
                      <td><p class="ex">23</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">Ratio</p></td>
                      <td><p class="ex">1.086957</p></td>
                    </tr>
                  </table>
      <p>The output of keywords.ost can be accessed by attaching the ost and querying 
        it for information. </p>
      <p class="ex">&gt;attach ost keywords.ost as kwds<br>
        Table KSWD attached</p>
      <p class="ex">&gt;select * from kwds<br>
      </p>
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