Symbian3/SDK/Source/GUID-39897348-B27A-5C02-B65C-C26D122BCAE4.dita
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     1 <?xml version="1.0" encoding="utf-8"?>
       
     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
       
     3 <!-- This component and the accompanying materials are made available under the terms of the License 
       
     4 "Eclipse Public License v1.0" which accompanies this distribution, 
       
     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
       
     6 <!-- Initial Contributors:
       
     7     Nokia Corporation - initial contribution.
       
     8 Contributors: 
       
     9 -->
       
    10 <!DOCTYPE concept
       
    11   PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
       
    12 <concept xml:lang="en" id="GUID-39897348-B27A-5C02-B65C-C26D122BCAE4"><title>Tables</title><prolog><metadata><keywords/></metadata></prolog><conbody><p>Two classes and a template class are used to manipulate tables in the database.</p> <p>The <codeph>RDbTable</codeph> class is used to manipulate a named table in the database, providing access to the data as a rowset. A named index can be used to order the rowset, and to provide fast key-based row retrieval from the table.</p> <p>The <codeph>TDbSeekKey</codeph> class is used to pass a key value to <codeph>RDbTable::SeekL()</codeph>, for lookup in the currently active index on that rowset. It can store a key value of any type. </p> <p><codeph>TDbSeekKey</codeph> can only hold a single-column key. Use the <codeph>TDbSeekMultiKey&lt;TInt S&gt;</codeph> templated class to allow multi-column indexes to be searched using multi-column key values. The template parameter <codeph>S</codeph> specifies the maximum number of column values that can be added to the key value.</p> </conbody></concept>