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    <td align="right" class="bar"> <!-- InstanceBeginEditable name="Section Title" -->
      <h1>Omnidex Concepts</h1>
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      <p><a href="#config">Configuration</a></p>
      <p>&nbsp;</p>
      <p><a href="#datatypes">Textual Data Types</a></p>
      <p><a href="../../Appendix/Supported%20Datatypes.htm">Supported Data Types</a></p>
      <p class="line">&nbsp;</p>
      <p><a href="Omnidex%20Text.htm">Omnidex Text</a></p>
      <p>&nbsp;</p>
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      <h2>Configuring Omnidex Text</h2>
      <p>Omnidex text contains a number of different configuration options, controlling 
        which features are enabled and whether these features are always active 
        for all queries or only active when specifically requested through an 
        Omnidex function.</p>
      <p><img src="../../images/note.gif" width="12" height="15"><img src="../../images/note.gif" width="12" height="15">All 
        columns in a table, except for the last column, must have an offset of 
        65,535 bytes or less. This means that <strong>there may be only one data 
        type with a length greater than 65,535 AND it must be the last column 
        in the table definition.</strong> Therefore, there can be only one column 
        per table, the last column, of any of the following data types: CSTRING 
        with a length of 32,768 bytes or more, CLOB, OMNIDEX CLOB, BLOB, or OMNIDEX 
        BLOB.</p>
      <p>The size limit depends on the data type See <a href="../../Appendix/Supported%20Datatypes.htm">Supported 
        Data types</a> for details.</p>
      <p class="line2">&nbsp;</p>
      <h4>Omnidex Global Environment</h4>
      <p>The configuration of Omnidex Text relies on a set of tables that are 
        described in the Omnidex Global Environment file (OAGLOBAL). This environment 
        is part of the Omnidex product and contains key pieces of information, 
        such as configuration settings and error messages. Each table is organized 
        into a set of lists, each of which is comprised of all rows that share 
        the same list name. These lists are then referenced throughout Omnidex.</p>
      <p>The database within the Omnidex Global Environment uses Tab-Delimited 
        Files located in the &quot;[Omnidex_home]/config/english&quot; directory. 
        From this directory, there are a series of subdirectories with names equating 
        to their respective table. Each table includes all Tab-Delimited files 
        pertaining to that particular feature, making it easy to add or remove 
        data from the table by simply adding or removing a file in the directory.</p>
      <p>Tab-Delimited files can be easily maintained using many applications 
        such as Microsoft Excel as well as a text editor or word processor. These 
        tools ca be used as long as the column layout is maintained and the proper 
        delimiters are used. Columns must be separated using a tab character and 
        rows must be separated by a linefeed. <img src="../../images/note.gif" width="12" height="15">Microsoft 
        Windows NT/2000/XP require a carriage-return and linefeed as row delimiters. 
        This will be done automatically in most Windows tools.</p>
      <p>&nbsp;</p>
      <p class="line2">&nbsp;</p>
      <h4>Environment File</h4>
      <p>The Omnidex Environment file supports several optional clauses to the 
        COLUMN statement which specify options to use automatically on all queries 
        involving that column.</p>
      <p class="ex">COLUMN column_name<br>
        <img src="../../images/blank.gif" width="30" height="10">[SYNONYMS 'options']<br>
        <img src="../../images/blank.gif" width="30" height="10">[SPELLCHECK 'options']<br>
        <img src="../../images/blank.gif" width="30" height="10">[MISSPELLINGS 
        'options']<br>
        <img src="../../images/blank.gif" width="30" height="10">[FORMS 'options']<br>
        <img src="../../images/blank.gif" width="30" height="10">[STOPWORDS 'options']<br>
        <img src="../../images/blank.gif" width="30" height="10">[PHONETIC 'options']<br>
        <img src="../../images/blank.gif" width="30" height="10">[INCLUDED_TAGS 
        'options']<br>
        <img src="../../images/blank.gif" width="30" height="10">[EXCLUDED_TAGS 
        'options'] </p>
      <p>To make SYNONYMS, SPELLCHECK, MISSPELLINGS, FORMS, STOPWORDS or PHONETIC 
        searches available at all time, include the AUTO_ENABLE option with each 
        setting. This will cause every qualification against that column to include 
        that feature.</p>
      <p>&nbsp;</p>
      <p class="line">&nbsp;</p>
      <h3><a name="datatypes"></a>Textual Data Types</h3>
      <p>The new text search capabilities are available for use with any of the 
        following textual data types:</p>
      <ul>
        <li><a href="../../Appendix/Supported%20Datatypes.htm#char">CHARACTER</a></li>
        <li><a href="../../Appendix/Supported%20Datatypes.htm#cstring">C STRING</a></li>
        <li><a href="../../Appendix/Supported%20Datatypes.htm#varchar">VARCHAR</a></li>
        <li><a href="../../Appendix/Supported%20Datatypes.htm#clob">CLOB</a></li>
        <li><a href="../../Appendix/Supported%20Datatypes.htm#blob">BLOB</a></li>
        <li><a href="../../Appendix/Supported%20Datatypes.htm#odxvarchar">OMNIDEX 
          VARCHAR</a></li>
        <li><a href="../../Appendix/Supported%20Datatypes.htm#odxclob">OMNIDEX 
          CLOB</a></li>
        <li><a href="../../Appendix/Supported%20Datatypes.htm#odxblob">OMNIDEX 
          BLOB</a></li>
      </ul>
      <p><img src="../../images/note.gif" width="12" height="15">Omnidex also 
        has limited support for four UNICODE textual data types. The new text 
        search capabilities can be used with these UNICODE data types with certain 
        restrictions. See <a href="../../Appendix/Supported%20Datatypes.htm">Supported 
        Data Types</a> for more information.</p>
      <p>&nbsp;</p>
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