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margin: 0px;"> + <A href="https://cwiki.apache.org/confluence/pages/editpage.action?pageId=50948"> + <IMG src="http://tuscany.apache.org/images/notep_16.gif" height="16" width="16" border="0" align="absmiddle" title="Edit Page"></A> + </DIV> + </TD> + + </TR> + </TABLE> + <!-- topNav macro end --> + + <!-- breadCrumbs macro --> + <TABLE border="0" cellpadding="2" cellspacing="0" width="100%"> + <TR class="topBar"> + <TD align="left" valign="middle" class="topBarDiv" nowrap="true" width="100%"> + <A href="home.html" title="Apache Tuscany">Apache Tuscany</A> > <A href="home.html" title="Home">Home</A> > <A href="das-overview.html" title="DAS Overview">DAS Overview</A> > <A href="das-java.html" title="DAS Java">DAS Java</A> > <A href="das-java-documentation-menu.html" title="DAS Java Documentation Menu">DAS Java Documentation Menu</A> > <A href="das-java-developer-guide.html" title="DAS Java Developer Guide">DAS Java Developer Guide</A> > <A href="" title="RDB DAS Java">RDB DAS Java</A> + </TD> + + <TD align="right" valign="middle" class="topBarDiv" align="left" nowrap="true"> + <A href="http://mail-archives.apache.org/mod_mbox/tuscany-user">User List</A> | <A href="http://mail-archives.apache.org/mod_mbox/tuscany-dev">Dev List</A> | <A href="http://issues.apache.org/jira/browse/Tuscany">Issue Tracker</A> + </TD> + </TR> + </TABLE> + <!-- breadCrumbs macro end --> + + + <TABLE border="0" cellpadding="0" width="100%" bgcolor="#FFFFFF"> + <TR> + <TD align="left" valign="top"> + + <!-- pageContent macro --> + <DIV id="PageContent"> + + <DIV class="pagecontent"> + <DIV class="wiki-content"> + <TABLE class="sectionMacro" border="0" cellpadding="5" cellspacing="0" width="100%"><TBODY><TR><TD class="confluenceTd" valign="top" width="15%"><P></P> +<DIV class="panel" style="background-color: #ECF4D1;border-color: #C3CDA1;border-style: solid;border-width: 1px;"><DIV class="panelHeader" style="border-bottom-width: 1px;border-bottom-style: solid;border-bottom-color: #C3CDA1;background-color: #C3CDA1;"><B>General</B></DIV><DIV class="panelContent" style="background-color: #ECF4D1;"> +<P><A href="home.html" title="Home">Home</A><BR> +<A href="http://www.apache.org/licenses/LICENSE-2.0.html" class="external-link" rel="nofollow">License </A><BR> +<A href="das-java-get-involved.html" title="DAS Java Get Involved">Get Involved</A><BR> +<A href="das-java-found-a-bug.html" title="DAS Java Found A Bug">Found a Bug?</A></P> +</DIV></DIV> +<DIV class="panel" style="background-color: #ECF4D1;border-color: #b4b4b5;border-style: solid;border-width: 1px;"><DIV class="panelHeader" style="border-bottom-width: 1px;border-bottom-style: solid;border-bottom-color: #b4b4b5;background-color: #C3CDA1;"><B>DAS Java</B></DIV><DIV class="panelContent" style="background-color: #ECF4D1;"> +<P><A href="das-java.html" title="DAS Java">DAS Java Home</A><BR> +<A href="das-java-faq.html" title="DAS Java - FAQ">FAQ</A><BR> +<A href="das-java-releases.html" title="DAS Java Releases">Downloads</A><BR> +<A href="das-java-documentation-menu.html" title="DAS Java Documentation Menu">Documentation</A><BR> +<A href="https://svn.apache.org/repos/asf/tuscany/java/das/" class="external-link" rel="nofollow">Source Code</A></P> +</DIV></DIV></TD><TD class="confluenceTd" valign="top" width="85%"> + +<H4><A name="RDBDASJava-WhatisRDBDataAccessService%3F"></A>What is RDB Data Access Service?</H4> + +<P>RDB DAS provides provides transformation capability between SDO data graphs and relational databases and vise versa.</P> + +<P>By using RDB DAS, applications developers avoid the details and complications of working directly with a relational database and also the complex transformation between relational rows/columns and SDO Data Object types/properties.</P> + +<P>RDB DAS processes the SDO change summary and produces efficient update statements that only write to columns that have actually been modified.</P> + +<P>The following diagram illustrates a DAS client. The client starts by reading a graph of data specified by some query. The client then makes modifications to the graph, possibly by adding elements, and then requests the DAS to push the changes back to the database.</P> + + +<P><SPAN class="image-wrap" style=""><IMG src="rdb-das-java.data/rdbDAS.gif" style="border: 0px solid black"></SPAN></P></TD></TR></TBODY></TABLE> + + </DIV> + </DIV> + </DIV> + <!-- pageContent macro end --> + + </TD> + </TR> + </TABLE> + + <!-- footer macro --> + <SCRIPT src="http://www.google-analytics.com/urchin.js" type="text/javascript"> + </SCRIPT> + <SCRIPT type="text/javascript"> + _uacct = "UA-1174707-5"; + urchinTracker(); + </SCRIPT> + + <A href="http://www.statcounter.com/" target="_blank"><IMG src="http://c26.statcounter.com/counter.php?sc_project=2619156&java=0&security=94bd7e7d&invisible=0" alt="website stats" border="0"></A> + + <DIV class="footer"> + Copyright � 2003-2012, The Apache Software Foundation </BR> + Apache Tuscany and the Apache Tuscany project logo are trademarks of The Apache Software Foundation. + </DIV> + <!-- footer macro end --> + + </BODY> +</HTML> |