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    <td align="right" class="bar"> <!-- InstanceBeginEditable name="Section Title" -->
      <h1>Features</h1>
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      <p><a href="#indexing">Indexing Text Fields for Keyword Searches</a></p>
      <p><a href="#example">Example</a> </p>
      <p class="line">&nbsp;</p>
      <p><a href="../Text/Omnidex%20Text.htm">Omnidex Text</a></p>
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      <h2>Keyword Searches</h2>
      <p>Keyword searches are queries that find data based on an individual keyword 
        parsed from a text field. Generally, keywords are delineated by a space 
        or punctuation mark, though special rules exist for special situations.</p>
      <p>Keyword searching is available through standard SQL and also through 
        the $CONTAINS function. When processing a SELECT statement, Omnidex examines 
        the type of index installed on each column. If criteria are applied to 
        a column installed with a keyword, the criteria will be interpreted as 
        a set of keywords, rather than a phrase. For example, given the criteria 
        &quot;content like 'cell phone' &quot;, the SQL optimizer would interpret 
        this as &quot;content like 'cell' AND content like 'phone' &quot;. Each 
        of these words could occur anywhere in the column, and in any order, as 
        long as they were separated by spaces, punctuation or other words.</p>
      <p>Using this criteria, records 1 &amp; 2 will qualify but 3 will not because 
        there is cellphone is a single word. However, you could use a wildcard 
        to qualify record 3, &quot;content like 'cell*' &quot;, which would also 
        qualify records containing the word cellular.</p>
      <p class="ex">1 &quot;The scientist used the <strong><font color="#FF0000">phone</font></strong> 
        to report his amazing discoveries concerning a single living <strong><font color="#FF0000">cell</font></strong>.&quot;</p>
      <p class="ex">2 &quot;The telephone company is going to install a <strong><font color="#FF0000">cell 
        phone</font></strong> tower on the corner.&quot;</p>
      <p class="ex">3 &quot;What I want for my birthday: new car, <strong>cellphone</strong>, 
        new clothes&quot;</p>
      <p>To prevent the criteria from being interpreted in this way, you could 
        use a <a href="Proximity%20Searches.htm">Proximity search</a>, which provides 
        a couple of methods for this type of search.</p>
      <p>&nbsp;</p>
      <p>&nbsp;</p>
      <p class="line">&nbsp;</p>
      <h3><a name="indexing"></a>Indexing Text Fields for Keyword Searches</h3>
      <p>To install keyword indexing on a text field, use the ;KW option. Columns 
        installed with the ;KW option will be parsed into individual keywords. 
        Spaces and punctuation are stripped (not stored in the indexes, the data 
        is unchanged). To prevent stop words (the, of, a, and, ...) from being 
        indexed, use an excluded words list.</p>
      <p>The ;KW option can be applied to a single column or a group of columns 
        using the ;Gn (grouping) option. For example, if two address fields and 
        the city field are grouped together, as follows:</p>
      <p class="ex">ADDRESS1;G1;KW<br>
        ADDRESS2;G1;KW<br>
        CITY;G1;KW</p>
      <p>a search like &quot; address1 = 'boulder' &quot; would qualify all rows 
        that contained the word 'boulder' in any of the three grouped columns.</p>
      <table width="100%" border="0" cellspacing="0" cellpadding="0">
        <tr> 
          <th><p>ID</p></th>
          <th><p>ADDRESS1</p></th>
          <th><p>ADDRESS2</p></th>
          <th><p>CITY</p></th>
        </tr>
        <tr> 
          <td><p class="ex">1</p></td>
          <td><p class="ex">123 BOULDER AVENUE</p></td>
          <td><p class="ex">UNIT 6</p></td>
          <td><p class="ex">FRESNO</p></td>
        </tr>
        <tr> 
          <td><p class="ex">2</p></td>
          <td><p class="ex">987 COLORADO BLVD.</p></td>
          <td><p class="ex">&nbsp;</p></td>
          <td><p class="ex">BOULDER</p></td>
        </tr>
        <tr> 
          <td><p class="ex">3</p></td>
          <td><p class="ex">456 MAIN ST.</p></td>
          <td><p class="ex">BOULDER CENTER</p></td>
          <td><p class="ex">MIAMI</p></td>
        </tr>
      </table>
      <p>&nbsp;</p>
      <p>By default, keyword searches are case insensitive. This means criteria 
        like &quot;company = 'systems' &quot; will find all records with the word 
        'systems' in it: systems, SYSTEMS, Systems, SyStEmS, ...</p>
      <p>To use keyword searches while keeping the search case sensitive, use 
        the ;KW (keywording) and ;CS (case sensitive) options together.</p>
      <p class="ex">COLUMN;KW;CS</p>
      <p class="line">&nbsp;</p>
      <h3><a name="example"></a>Example</h3>
      <p>&nbsp;</p>
      <p>&nbsp;</p>
      <p>&nbsp;</p>
      <p>&nbsp;</p>
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