Symbian3/SDK/Source/GUID-F40E34F4-5B8B-523E-82B6-7717D8FD26AB.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 id="GUID-F40E34F4-5B8B-523E-82B6-7717D8FD26AB" xml:lang="en"><title>Executing
       
    13 SQL statements</title><shortdesc>The <codeph>RDbDatabase</codeph> class provides a member function, <codeph>Execute()</codeph>,
       
    14 which directly executes <i>both</i> DDL and DML statements on the database.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
       
    15 <p>As most of these statements can take an extended time to complete, there
       
    16 are also interfaces to execute these statements incrementally. </p>
       
    17 <ul>
       
    18 <li id="GUID-D73DC76D-6E12-542D-9E60-81A7CDDF221F"><p><codeph>RDbIncremental</codeph> provides
       
    19 a member function, <codeph>Execute()</codeph>, which executes a DDL statement
       
    20 incrementally.</p> </li>
       
    21 <li id="GUID-AA5D4133-B777-5F3E-8DD1-3398D5012B11"><p><codeph>RDbUpdate</codeph> provides
       
    22 the functionality for executing a DML statement incrementally.</p> </li>
       
    23 </ul>
       
    24 <p>DML statements need a different interface because it is not always possible
       
    25 to know how many steps a DML operation is going to need.</p>
       
    26 </conbody></concept>