Symbian3/SDK/Source/GUID-39897348-B27A-5C02-B65C-C26D122BCAE4.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Thu, 21 Jan 2010 18:18:20 +0000
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License 
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"Eclipse Public License v1.0" which accompanies this distribution, 
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors: 
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-->
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<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>