<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><!-- InstanceBegin template="../../Templates/DocTemp.dwt" codeOutsideHTMLIsLocked="false" -->
<head>
<!-- InstanceBeginEditable name="doctitle" -->
<title>Omnidex Concepts - Indexing Options - ASK Indexes</title>
<!-- InstanceEndEditable --> 
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link href="../../docs.css" rel="stylesheet" type="text/css">
<script language="JavaScript1.2" src="../../docs.js"></script>
<!-- InstanceBeginEditable name="head" --><!-- InstanceEndEditable -->
</head>

<body>
<table width="100%" class="lightblue" border="0" cellspacing="0" cellpadding="0">
  <tr>
    <td><a href="http://www.omnidex.com"><img src="../../images/flatlogo.gif" width="95" height="25" hspace="3" vspace="3" border="0"></a></td>
    <td><img src="../../images/omnidex.gif" width="109" height="25" hspace="3" vspace="3"></td>
    <td align="right" valign="top"><p class="banner"><a href="../../Contents.htm">Contents</a> 
        | <a href="../../Quick%20Links.htm">Quick Links</a></p></td>
  </tr>
</table>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
  <tr> 
    <td width="175" class="bar"><p class="banner">&nbsp;</p></td>
    <td align="right" class="bar"> <!-- InstanceBeginEditable name="Section Title" --> 
      <h1>Omnidex Concepts - Indexing Options</h1>
      <!-- InstanceEndEditable --></td>
  </tr>
  <tr> 
    <td width="175" class="left1 lightblue"><img src="../../images/blank.gif" width="10" height="20"> 
    </td>
    <td valign="top" class="left1 lightblue">&nbsp; </td>
  </tr>
  <tr> 
    <td width="175" valign="top" class="left"><!-- InstanceBeginEditable name="leftnav" -->
      <p><a href="#advantages">Advantages</a></p>
      <p><a href="#when">When to Use ASK Indexes</a></p>
      <p><a href="#searches">Sorted Searches</a></p>
      <p class="line">&nbsp;</p>
      <p>&nbsp;</p>
      <!-- InstanceEndEditable --></td>
    <td valign="top" class="content"> <!-- InstanceBeginEditable name="Content" --> 
      <h2>Aggregation/Sorted Key (ASK) Indexes</h2>
      <p>Aggregation/Sorted Key (ASK) Indexes provide high-speed aggregation and 
        sorted key retrieval capabilities.</p>
      <p>Data returned by an ASK index qualification is returned in order, sorted 
        numerically or alphabetically by key value.</p>
      <p>Aggregations performed on an Aggregation index are calculated lightning 
        fast and returned grouped and sorted in the order specified when the indexes 
        were installed.</p>
      <p>ASK indexes allow qualifications on rows whose indexed columns begin 
        with a certain string (ASCII only) or that fall within a range of values, 
        and return the rows sorted by the values in the indexed column.</p>
      <p>See Composite Indexes for more information and rules about creating composite 
        MDK indexes.</p>
      <p></p>
      <p class="line">&nbsp;</p>
      <h3><a name="advantages"></a>Advantages</h3>
      <p>Although many DBMSs provide a means of sorting rows, Omnidex ASK indexes 
        offer several advantages over them.</p>
      <ul>
        <li>ASK indexes do not store entire rows redundantly. They store only 
          the indexed column values and the row IDs. </li>
        <li>ASK indexes can be maintained automatically, in real time, as rows 
          are added to a table. </li>
        <li>ASK indexes let you search using ranges, relational operations (&lt;, 
          &lt;=, &gt;, &gt;=), and wildcard criteria. </li>
        <li>ASK composite indexes provide an efficient means to sorting rows by 
          several columns. </li>
        <li>If all of the requested data is stored in the indexes, for example 
          aggregations on the data without detail data, the database is never 
          touched. The aggregations are performed against the indexes eliminating 
          the overhead incurred when connecting to and requesting rows from the 
          dbms. </li>
        <li>The need for summary tables is completely eliminated saving disk space 
          used by redundant data.</li>
      </ul>
      <p class="line">&nbsp; </p>
      <h3><a name="when"></a>When to Use ASK Indexes</h3>
      <p> ASK indexes should be used when criteria will consist of a range in 
        the data, such as between two dates, or a relational operation, such as 
        amount&gt;=100.</p>
      <p>ASK indexes should be used to retrieve rows in sorted order, including 
        rows qualified by an MDK index. When the underlying database does not 
        provide a native sorting method, a flat file database for instance, ASK 
        indexes are the only way to retrieve rows in sorted order.</p>
      <p>Use ASK indexes when performing aggregations, SUM, MIN, MAX, AVG, COUNT. 
        Also use ASK indexes to define grouping for one or more columns when performing 
        aggregations.</p>
      <h6>Sorting</h6>
      <p> Install ASK indexes on columns that will be used for sorting, such as 
        a name field or a ZIP_CODE field for mass mailings. ASK indexes can be 
        installed on an MDK indexed column to return data qualified by a keyword 
        search, in sorted order.</p>
      <p>Create composite sorted indexes that sort rows based on multiple columns. 
      </p>
      <p class="ex">Table: PRODUCTS<br>
        Key field: PRODUCT_NO<br>
        Key field: PRODUCT_NAME<br>
        Key field: CLASSNAME_AG!<br>
        Component 1 (Field [,start-byte,lgth]) PRODUCT_CLASS<br>
        Component 2 (Field [,start-byte,lgth]) PRODUCT_NAME<br>
        Component 3 (Field [,start-byte,lgth]) SALES_PRICE<br>
        Component 4 (Field [,start-byte,lgth]) PRODUCT_COST<br>
        Component 5 (Field [,start-byte,lgth]) /</p>
      <p><br>
        Omnidex ASK indexes reduce the data redundancy usually associated with 
        sorting rows. There is no need to maintain external files of sorted rows, 
        or to maintain pointers for sort paths. This makes Omnidex ASK indexes 
        faster and more efficient to use than other means of sorting rows.</p>
      <p>Use ASK Indexes to retrieve records in sorted order from a flat file 
        database or dbms that does not have native sorted indexing capabilities.</p>
      <h6>Aggregations and Grouping</h6>
      <p>An Aggregation Index is a composite ASK index used for calculating, grouping, 
        and sorting aggregations quickly. </p>
      <p>Aggregations are used to summarize the collective values of qualified 
        rows for a specified column, using SUM, MIN, MAX, AVG, and COUNT. For 
        example, AVG(SALES_AMT) is an aggregation that would return the average 
        value of the SALES_AMT column for a group of selected rows.</p>
      <p>The DBINSTAL example above creates an ASK index on the PRODUCTS table 
        with a composite aggregation index on the PRODUCT_CLASS, PRODUCT_NAME, 
        SALES_PRICE and PRODUCT_COST fields. This allows aggregations to be performed 
        on the SALES_PRICE and PRODUCT_COST fields grouped by PRODUCT_CLASS and 
        PRODUCT_NAME, and sorting done on the PRODUCT_NO and PRODUCT_NAME fields.</p>
      <p>The following SQL statement will be optimized using this index:</p>
      <p class="ex">SELECT <br>
        PRODUCT_NAME, <br>
        SUM(SALES_PRICE), <br>
        SUM(PRODUCT_COST)<br>
        FROM PRODUCTS<br>
        GROUP BY PRODUCT_CLASS, PRODUCT_NAME<br>
        ORDER BY 1,2</p>
      <p class="line">&nbsp;</p>
      <h3><a name="searches" id="searches"></a>Sorted Searches</h3>
      <p>ASK indexes support the following search operations:</p>
      <ul>
        <li>range retrievals </li>
        <li>relational retrievals (like &gt;, &lt;, &gt;= and&lt;=) </li>
        <li>partial-key searches </li>
      </ul>
      <p>ASK indexes also support partial-key and wildcard searches. This is especially 
        useful when searching on hierarchical code fields. Account numbers are 
        often hierarchical fields where the first few bytes represent a regional 
        code, the next few bytes a SIC code, and so on. When an ASK index is installed 
        on a hierarchical code field, it lets you find rows as generally or as 
        specifically as you want, depending on how much of the key value you specify 
        in your search argument.</p>
      <p>For example, if you used a partial criterion, like 80*, against a ZIP_CODE 
        ASK index, you would find rows where the first two bytes of the zip codes 
        match the two-byte argument.</p>
      <p>A report of the qualifying rows might look like this:</p>
      <table width="100%" border="0" cellspacing="0" cellpadding="0">
                    <tr> 
                      <td><p class="ex">Customer<br>
              Number</p></td>
                      <td><p class="ex">Company</p></td>
                      <td><p class="ex">Zip Code</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">2</p></td>
                      <td><p class="ex">Information Express</p></td>
                      <td><p class="ex">80020</p></td>
                    </tr>
                    <tr> 
                      <td><p class="ex">1</p></td>
                      <td><p class="ex"> Dynamic Information Systems Corporation</p></td>
                      <td><p class="ex">80301</p></td>
                    </tr>
                  </table>
      <p>&nbsp;</p>
      <!-- InstanceEndEditable --><P align="right"><a href="#">Top</a> </P>
	  </td>
  </tr>
  <tr>
    <td width="175" class="bbar">
<p>&nbsp;</p></td>
    <td align="right" valign="middle" class="bbar"> <p class="banner">Omnidex 
        Version 4.1 Build 1 - E10.04 - Dynamic Information Systems Corporation 
        - Copyright &copy; 2004</p></td>
  </tr>
</table>
<div class="menu0" id="m1" onMouseOver="changeClass('menu1','m1'); changeVisibility('visible','s1');" onMouseOut="changeClass('menu0','m1'); changeVisibility('hidden','s1');"> 
  <a href="../../index.htm">Home</a></div>      
<div class="menu0" id="m2" onMouseOver="changeClass('menu1','m2'); changeVisibility('visible','s2');" onMouseOut="changeClass('menu0','m2'); changeVisibility('hidden','s2');"> 
  <a href="../../Omnidex%20Concepts/Omnidex%20Overview.htm">Omnidex</a></div>      
<div class="menu0" id="m3" onMouseOver="changeClass('menu1','m3'); changeVisibility('visible','s3');" onMouseOut="changeClass('menu0','m3'); changeVisibility('hidden','s3');"> 
  <a href="../../Getting%20Started/Getting%20Started.htm">Getting Started </a></div>      
<div class="menu0" id="m4" onMouseOver="changeClass('menu1','m4'); changeVisibility('visible','s4');" onMouseOut="changeClass('menu0','m4'); changeVisibility('hidden','s4');"> 
  <a href="../../Development/Development.htm">Development</a></div>      
<div class="menu0" id="m5" onMouseOver="changeClass('menu1','m5'); changeVisibility('visible','s5');" onMouseOut="changeClass('menu0','m5'); changeVisibility('hidden','s5');"> 
  <a href="../../Utilities/Utilities.htm">Utilities</a></div>      
<div class="menu0" id="m6" onMouseOver="changeClass('menu1','m6'); changeVisibility('visible','s6');" onMouseOut="changeClass('menu0','m6'); changeVisibility('hidden','s6');"> 
  <a href="../../Appendix/Appendix.htm">Appendix</a></div>
    <td>&nbsp;</td>
  </tr>
</table> 
<table id="s1" border="0" cellspacing="0" cellpadding="0" onMouseOver="changeClass('menu1','m1'); changeVisibility('visible','s1');" onMouseOut="changeClass('menu0','m1'); changeVisibility('hidden','s1');">
  <tr> 
    <td id="s11" class="menu1" onMouseOver="changeClass('menu0','s11');" onMouseOut="changeClass('menu1','s11');"><a href="../../Whats%20New.htm">What's 
      New!</a></td>
  </tr>
  <tr> 
    <td id="s12" class="menu1" onMouseOver="changeClass('menu0','s12');" onMouseOut="changeClass('menu1','s12');"><a href="../../Quick%20Links.htm">Quick 
      Links</a></td>
  </tr>
  <tr> 
    <td id="s13" class="menu1" onMouseOver="changeClass('menu0','s13');" onMouseOut="changeClass('menu1','s13');"><a href="../../Contents.htm">Contents</a></td>
  </tr>
</table>
<table id="s2" border="0" cellspacing="0" cellpadding="0" onMouseOver="changeClass('menu1','m2'); changeVisibility('visible','s2');" onMouseOut="changeClass('menu0','m2'); changeVisibility('hidden','s2');">
  <tr> 
    <td id="s21" class="menu1" onMouseOver="changeClass('menu0','s21');" onMouseOut="changeClass('menu1','s21');"><a href="../../Omnidex%20Concepts/Features/Features.htm">Features</a></td>
  </tr>
  <tr> 
    <td id="s22" class="menu1" onMouseOver="changeClass('menu0','s22');" onMouseOut="changeClass('menu1','s22');"><a href="../../Omnidex%20Concepts/Indexing%20Strategies/Indexing%20Strategies.htm">Indexing 
      Strategies</a></td>
  </tr>
  <tr> 
    <td id="s23" class="menu1" onMouseOver="changeClass('menu0','s23');" onMouseOut="changeClass('menu1','s23');"><a href="../../Omnidex%20Concepts/Indexing%20Options/Indexing%20Options.htm">Indexing 
      Options </a></td>
  </tr>
  <tr> 
    <td id="s24" class="menu1" onMouseOver="changeClass('menu0','s24');" onMouseOut="changeClass('menu1','s24');"><a href="../../Omnidex%20Concepts/Index%20Maintenance/Index%20Maintenance.htm">Index 
      Maintenance </a></td>
  </tr>
  <tr> 
    <td id="s25" class="menu1" onMouseOver="changeClass('menu0','s25');" onMouseOut="changeClass('menu1','s25');"><a href="../../Omnidex%20Concepts/Partitioning/Partitioning.htm">Optimization</a></td>
  </tr>
  <tr> 
    <td id="s26" class="menu1" onMouseOver="changeClass('menu0','s26');" onMouseOut="changeClass('menu1','s26');"><a href="../../Omnidex%20Concepts/Index%20Maintenance/Index%20Maintenance.htm">Partitioning</a></td>
  </tr>
  <tr> 
    <td id="s27" class="menu1" onMouseOver="changeClass('menu0','s27');" onMouseOut="changeClass('menu1','s27');"><a href="../../Omnidex%20Concepts/Text/Omnidex%20Text.htm">Omnidex Text</a></td>
  </tr>
</table>
<table id="s3" border="0" cellspacing="0" cellpadding="0" onMouseOver="changeClass('menu1','m3'); changeVisibility('visible','s3');" onMouseOut="changeClass('menu0','m3'); changeVisibility('hidden','s3');">
  <tr> 
    <td id="s31" class="menu1" onMouseOver="changeClass('menu0','s31');" onMouseOut="changeClass('menu1','s31');"><a href="../../Getting%20Started/1%20-%20Installation%20and%20Setup.htm">Server 
      Setup Guides</a></td>
  </tr>
  <tr> 
    <td id="s32" class="menu1" onMouseOver="changeClass('menu0','s32');" onMouseOut="changeClass('menu1','s32');"><a href="../../Getting%20Started/Omnidex%20Client/Windows%20Client.htm">Windows 
      Client</a></td>
  </tr>
  <tr> 
    <td id="s33" class="menu1" onMouseOver="changeClass('menu0','s33');" onMouseOut="changeClass('menu1','s33');"><a href="../../Database%20Platforms/Supported%20Database%20Platforms.htm">Database 
      Platforms </a></td>
  </tr>
  <tr> 
    <td id="s34" class="menu1" onMouseOver="changeClass('menu0','s34');" onMouseOut="changeClass('menu1','s34');"><a href="../../Environment%20Catalog/Environment%20Catalog.htm">Environment 
      Catalog</a> </td>
  </tr>
</table>
<table id="s4" border="0" cellspacing="0" cellpadding="0" onMouseOver="changeClass('menu1','m4'); changeVisibility('visible','s4');" onMouseOut="changeClass('menu0','m4'); changeVisibility('hidden','s4');">
  <tr> 
    <td id="s41" class="menu1" onMouseOver="changeClass('menu0','s41');" onMouseOut="changeClass('menu1','s41');"><a href="../../SQL%20Reference/SQL%20Reference.htm">SQL 
      Reference</a> </td>
  </tr>
  <tr> 
    <td id="s42" class="menu1" onMouseOver="changeClass('menu0','s42');" onMouseOut="changeClass('menu1','s42');"><a href="../../Development/ODBC/ODBC.htm">ODBC</a></td>
  </tr>
  <tr> 
    <td id="s43" class="menu1" onMouseOver="changeClass('menu0','s43');" onMouseOut="changeClass('menu1','s43');"><a href="../../Development/JDBC/JDBC.htm">JDBC</a></td>
  </tr>
  <tr> 
    <td id="s44" class="menu1" onMouseOver="changeClass('menu0','s44');" onMouseOut="changeClass('menu1','s44');"><a href="../../Development/OmniAccess%20API/OmniAccess%20API.htm">OmniAccess 
      API</a></td>
  </tr>
  <tr> 
    <td id="s45" class="menu1" onMouseOver="changeClass('menu0','s45');" onMouseOut="changeClass('menu1','s45');"><a href="../../Development/Debugging/OMNIDEX_DEBUG.htm">Debugging</a></td>
  </tr>
</table>
<table id="s5" border="0" cellspacing="0" cellpadding="0" onMouseOver="changeClass('menu1','m5'); changeVisibility('visible','s5');" onMouseOut="changeClass('menu0','m5'); changeVisibility('hidden','s5');">
  <tr> 
    <td id="s51" class="menu1" onMouseOver="changeClass('menu0','s51');" onMouseOut="changeClass('menu1','s51');"><A href="../../Utilities/DBINSTAL/DBINSTAL.htm">DBINSTAL</A></td>
  </tr>
  <tr> 
    <td id="s52" class="menu1" onMouseOver="changeClass('menu0','s52');" onMouseOut="changeClass('menu1','s52');"><a href="../../Utilities/DSEDIT/DSEDIT.htm">DSEDIT</a></td>
  </tr>
  <tr> 
    <td id="s53" class="menu1" onMouseOver="changeClass('menu0','s53');" onMouseOut="changeClass('menu1','s53');"><a href="../../Utilities/NSADMIN/NSADMIN.htm">NSADMIN</a></td>
  </tr>
  <tr> 
    <td id="s54" class="menu1" onMouseOver="changeClass('menu0','s54');" onMouseOut="changeClass('menu1','s54');"><a href="../../Utilities/OACOMP/OACOMP.htm">OACOMP</a></td>
  </tr>
  <tr> 
    <td id="s55" class="menu1" onMouseOver="changeClass('menu0','s55');" onMouseOut="changeClass('menu1','s55');"><a href="../../Utilities/OADECOMP/OADECOMP.htm">OADECOMP</a></td>
  </tr>
  <tr> 
    <td id="s56" class="menu1" onMouseOver="changeClass('menu0','s56');" onMouseOut="changeClass('menu1','s56');"><a href="../../Utilities/OAHELPER/OAHELPER.htm">OAHELPER</a></td>
  </tr>
  <tr> 
    <td id="s57" class="menu1" onMouseOver="changeClass('menu0','s57');" onMouseOut="changeClass('menu1','s57');"><A href="../../Utilities/ODXAIM/ODXAIM.htm">ODXAIM</A></td>
  </tr>
  <tr> 
    <td id="s58" class="menu1" onMouseOver="changeClass('menu0','s58');" onMouseOut="changeClass('menu1','s58');"><a href="../../Utilities/ODXMAKE/ODXMAKE.htm">ODXMAKE</a></td>
  </tr>
  <tr> 
    <td id="s59" class="menu1" onMouseOver="changeClass('menu0','s59');" onMouseOut="changeClass('menu1','s59');"><a href="../../Utilities/ODXNET/ODXNET.htm">ODXNET</a></td>
  </tr>
  <tr> 
    <td id="s510" class="menu1" onMouseOver="changeClass('menu0','s510');" onMouseOut="changeClass('menu1','s510');"><A href="../../Utilities/ODXQUERY/ODXQUERY.htm">ODXQUERY</A></td>
  </tr>
  <tr> 
    <td id="s511" class="menu1" onMouseOver="changeClass('menu0','s511');" onMouseOut="changeClass('menu1','s511');"><a href="../../Utilities/ODXSQL/ODXSQL.htm">ODXSQL</a></td>
  </tr>
  <tr> 
    <td id="s512" class="menu1" onMouseOver="changeClass('menu0','s512');" onMouseOut="changeClass('menu1','s512');"><a href="../../Utilities/REGMAINT/REGMAINT.htm">REGMAINT</a></td>
  </tr>
  <tr> 
    <td id="s513" class="menu1" onMouseOver="changeClass('menu0','s513');" onMouseOut="changeClass('menu1','s513');"><A href="../../Utilities/REGTEST/REGTEST.htm">REGTEST</A></td>
  </tr>
  <tr> 
    <td id="s514" class="menu1" onMouseOver="changeClass('menu0','s514');" onMouseOut="changeClass('menu1','s514');"><a href="../../Utilities/SNOWGEN/SNOWGEN.htm">SNOWGEN</a></td>
  </tr>
  <tr> 
    <td id="s515" class="menu1" onMouseOver="changeClass('menu0','s515');" onMouseOut="changeClass('menu1','s515');"><a href="../../Utilities/SYSINFO/SYSINFO.htm">SYSINFO</a></td>
  </tr>
  <tr> 
    <td id="s516" class="menu1" onMouseOver="changeClass('menu0','s516');" onMouseOut="changeClass('menu1','s516');"><a href="../../Utilities/VERSIONS/VERSIONS.htm">VERSIONS</a></td>
  </tr>
  <tr> 
    <td id="s517" class="menu1" onMouseOver="changeClass('menu0','s517');" onMouseOut="changeClass('menu1','s517');"><a href="../../Utilities/VIEWGEN/VIEWGEN.htm">VIEWGEN</a></td>
  </tr>
</table>
<table id="s6" border="0" cellspacing="0" cellpadding="0" onMouseOver="changeClass('menu1','m6'); changeVisibility('visible','s6');" onMouseOut="changeClass('menu0','m6'); changeVisibility('hidden','s6');">
  <tr> 
    <td id="s61" class="menu1" onMouseOver="changeClass('menu0','s61');" onMouseOut="changeClass('menu1','s61');"><a href="../../Appendix/Cardinality.htm">Cardinality</a></td>
  </tr>
  <tr> 
    <td id="s62" class="menu1" onMouseOver="changeClass('menu0','s62');" onMouseOut="changeClass('menu1','s62');"><a href="../../Appendix/Date%20Formats.htm">Date 
      Formats </a></td>
  </tr>
  <tr> 
    <td id="s63" class="menu1" onMouseOver="changeClass('menu0','s63');" onMouseOut="changeClass('menu1','s63');"><a href="../../Appendix/Environment%20Variables.htm">Environment 
      Variables </a></td>
  </tr>
  <tr> 
    <td id="s64" class="menu1" onMouseOver="changeClass('menu0','s64');" onMouseOut="changeClass('menu1','s64');"><a href="../../Appendix/File%20Name%20Handling.htm">File 
      Name Handling</a></td>
  </tr>
  <tr> 
    <td id="s65" class="menu1" onMouseOver="changeClass('menu0','s65');" onMouseOut="changeClass('menu1','s65');"><a href="../../Appendix/Glossary%20A.htm">Glossary</a></td>
  </tr>
  <tr> 
    <td id="s66" class="menu1" onMouseOver="changeClass('menu0','s66');" onMouseOut="changeClass('menu1','s66');"><a href="../../Appendix/Null.htm">Null</a></td>
  </tr>
  <tr> 
    <td id="s67" class="menu1" onMouseOver="changeClass('menu0','s67');" onMouseOut="changeClass('menu1','s67');"><a href="../../Appendix/OAGLOBAL.htm">OAGLOBAL</a></td>
  </tr>
  <tr> 
    <td id="s68" class="menu1" onMouseOver="changeClass('menu0','s68');" onMouseOut="changeClass('menu1','s68');"><a href="../../Appendix/Operating%20Limits.htm">Operating 
      Limits</a></td>
  </tr>
  <tr> 
    <td id="s69" class="menu1" onMouseOver="changeClass('menu0','s69');" onMouseOut="changeClass('menu1','s69');"><a href="../../Appendix/Provided%20Managed%20Synonym%20Lists.htm">Managed 
      Synonym Lists</a></td>
  </tr>
  <tr> 
    <td id="s70" class="menu1" onMouseOver="changeClass('menu0','s70');" onMouseOut="changeClass('menu1','s70');"><a href="../../Appendix/Reserved%20Words.htm">Reserved 
      Words</a></td>
  </tr>
  <tr> 
    <td id="s71" class="menu1" onMouseOver="changeClass('menu0','s71');" onMouseOut="changeClass('menu1','s71');"><a href="../../Appendix/Supported%20Datatypes.htm">Supported 
      Data Types</a></td>
  </tr>
</table>
<p>&nbsp;</p>
</body>
<!-- InstanceEnd --></html>
