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<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>Getting Started with Berkeley DB</title> <link rel="stylesheet" href="gettingStarted.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.62.4" /> <link rel="home" href="index.html" title="Getting Started with Berkeley DB" /> <link rel="next" href="preface.html" title="Preface" /> </head> <body> <div class="navheader"> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">Getting Started with Berkeley DB</th> </tr> <tr> <td width="20%" align="left"> </td> <th width="60%" align="center"> </th> <td width="20%" align="right"> <a accesskey="n" href="preface.html">Next</a></td> </tr> </table> <hr /> </div> <div class="book" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h1 class="title"><a id="id613728"></a>Getting Started with Berkeley DB</h1> </div> <div> <div class="legalnotice"> <p class="legalnotice-title"> <b>Legal Notice</b> </p> <p> This documentation is distributed under an open source license. You may review the terms of this license at: <a href="http://www.oracle.com/technology/software/products/berkeley-db/htdocs/oslicense.html" target="_top">http://www.oracle.com/technology/software/products/berkeley-db/htdocs/oslicense.html</a> </p> <p> Oracle, Berkeley DB, and Sleepycat are trademarks or registered trademarks of Oracle. All rights to these marks are reserved. No third-party use is permitted without the express prior written consent of Oracle. </p> <p> To obtain a copy of this document's original source code, please submit a request to the Oracle Technology Network forum at: <a href="http://forums.oracle.com/forums/forum.jspa?forumID=271" target="_top">http://forums.oracle.com/forums/forum.jspa?forumID=271</a> </p> </div> </div> <div> <p class="pubdate">4/25/2008</p> </div> </div> <div></div> <hr /> </div> <div class="toc"> <p> <b>Table of Contents</b> </p> <dl> <dt> <span class="preface"> <a href="preface.html">Preface</a> </span> </dt> <dd> <dl> <dt> <span class="sect1"> <a href="preface.html#conventions">Conventions Used in this Book</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="preface.html#moreinfo">For More Information</a> </span> </dt> </dl> </dd> </dl> </dd> <dt> <span class="chapter"> <a href="introduction.html">1. Introduction to Berkeley DB </a> </span> </dt> <dd> <dl> <dt> <span class="sect1"> <a href="introduction.html#aboutthismanual">About This Manual</a> </span> </dt> <dt> <span class="sect1"> <a href="concepts.html">Berkeley DB Concepts</a> </span> </dt> <dt> <span class="sect1"> <a href="accessmethods.html">Access Methods</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="accessmethods.html#selectAM">Selecting Access Methods</a> </span> </dt> <dt> <span class="sect2"> <a href="accessmethods.html#BTreeVSHash">Choosing between BTree and Hash</a> </span> </dt> <dt> <span class="sect2"> <a href="accessmethods.html#QueueVSRecno">Choosing between Queue and Recno</a> </span> </dt> </dl> </dd> <dt> <span class="sect1"> <a href="databaseLimits.html">Database Limits and Portability</a> </span> </dt> <dt> <span class="sect1"> <a href="environments.html">Environments</a> </span> </dt> <dt> <span class="sect1"> <a href="coreExceptions.html">Exception Handling</a> </span> </dt> <dt> <span class="sect1"> <a href="returns.html">Error Returns</a> </span> </dt> <dt> <span class="sect1"> <a href="gettingit.html">Getting and Using DB </a> </span> </dt> </dl> </dd> <dt> <span class="chapter"> <a href="DB.html">2. Databases</a> </span> </dt> <dd> <dl> <dt> <span class="sect1"> <a href="DB.html#DBOpen">Opening Databases</a> </span> </dt> <dt> <span class="sect1"> <a href="coredbclose.html">Closing Databases</a> </span> </dt> <dt> <span class="sect1"> <a href="DBOpenFlags.html">Database Open Flags</a> </span> </dt> <dt> <span class="sect1"> <a href="CoreDBAdmin.html">Administrative Methods</a> </span> </dt> <dt> <span class="sect1"> <a href="dbErrorReporting.html">Error Reporting Functions</a> </span> </dt> <dt> <span class="sect1"> <a href="CoreEnvUsage.html">Managing Databases in Environments</a> </span> </dt> <dt> <span class="sect1"> <a href="CoreDbCXXUsage.html">Database Example</a> </span> </dt> </dl> </dd> <dt> <span class="chapter"> <a href="DBEntry.html">3. Database Records</a> </span> </dt> <dd> <dl> <dt> <span class="sect1"> <a href="DBEntry.html#usingDbEntry">Using Database Records</a> </span> </dt> <dt> <span class="sect1"> <a href="usingDbt.html">Reading and Writing Database Records</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="usingDbt.html#databaseWrite">Writing Records to the Database</a> </span> </dt> <dt> <span class="sect2"> <a href="usingDbt.html#CoreDatabaseRead">Getting Records from the Database</a> </span> </dt> <dt> <span class="sect2"> <a href="usingDbt.html#recordDelete">Deleting Records</a> </span> </dt> <dt> <span class="sect2"> <a href="usingDbt.html#datapersist">Data Persistence</a> </span> </dt> </dl> </dd> <dt> <span class="sect1"> <a href="DbCXXUsage.html">Database Usage Example</a> </span> </dt> </dl> </dd> <dt> <span class="chapter"> <a href="Cursors.html">4. Using Cursors</a> </span> </dt> <dd> <dl> <dt> <span class="sect1"> <a href="Cursors.html#openCursor">Opening and Closing Cursors</a> </span> </dt> <dt> <span class="sect1"> <a href="Positioning.html">Getting Records Using the Cursor</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="Positioning.html#cursorsearch">Searching for Records</a> </span> </dt> <dt> <span class="sect2"> <a href="Positioning.html#getdups">Working with Duplicate Records</a> </span> </dt> </dl> </dd> <dt> <span class="sect1"> <a href="PutEntryWCursor.html">Putting Records Using Cursors</a> </span> </dt> <dt> <span class="sect1"> <a href="DeleteEntryWCursor.html">Deleting Records Using Cursors</a> </span> </dt> <dt> <span class="sect1"> <a href="ReplacingEntryWCursor.html">Replacing Records Using Cursors</a> </span> </dt> <dt> <span class="sect1"> <a href="CoreCursorUsage.html">Cursor Example</a> </span> </dt> </dl> </dd> <dt> <span class="chapter"> <a href="indexes.html">5. Secondary Databases</a> </span> </dt> <dd> <dl> <dt> <span class="sect1"> <a href="indexes.html#CoreDbAssociate">Opening and Closing Secondary Databases</a> </span> </dt> <dt> <span class="sect1"> <a href="keyCreator.html">Implementing Key Extractors </a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="keyCreator.html#multikeys">Working with Multiple Keys</a> </span> </dt> </dl> </dd> <dt> <span class="sect1"> <a href="readSecondary.html">Reading Secondary Databases</a> </span> </dt> <dt> <span class="sect1"> <a href="secondaryDelete.html">Deleting Secondary Database Records</a> </span> </dt> <dt> <span class="sect1"> <a href="secondaryCursor.html"> Using Cursors with Secondary Databases </a> </span> </dt> <dt> <span class="sect1"> <a href="joins.html">Database Joins</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="joins.html#joinUsage">Using Join Cursors</a> </span> </dt> </dl> </dd> <dt> <span class="sect1"> <a href="coreindexusage.html">Secondary Database Example</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="coreindexusage.html#edlWIndexes">Secondary Databases with example_database_load</a> </span> </dt> <dt> <span class="sect2"> <a href="coreindexusage.html#edrWIndexes">Secondary Databases with example_database_read</a> </span> </dt> </dl> </dd> </dl> </dd> <dt> <span class="chapter"> <a href="dbconfig.html">6. Database Configuration</a> </span> </dt> <dd> <dl> <dt> <span class="sect1"> <a href="dbconfig.html#pagesize">Setting the Page Size</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="dbconfig.html#overflowpages">Overflow Pages</a> </span> </dt> <dt> <span class="sect2"> <a href="dbconfig.html#Locking">Locking</a> </span> </dt> <dt> <span class="sect2"> <a href="dbconfig.html#IOEfficiency">IO Efficiency</a> </span> </dt> <dt> <span class="sect2"> <a href="dbconfig.html#pagesizeAdvice">Page Sizing Advice</a> </span> </dt> </dl> </dd> <dt> <span class="sect1"> <a href="cachesize.html">Selecting the Cache Size</a> </span> </dt> <dt> <span class="sect1"> <a href="btree.html">BTree Configuration</a> </span> </dt> <dd> <dl> <dt> <span class="sect2"> <a href="btree.html#duplicateRecords">Allowing Duplicate Records</a> </span> </dt> <dt> <span class="sect2"> <a href="btree.html#comparators">Setting Comparison Functions</a> </span> </dt> </dl> </dd> </dl> </dd> </dl> </div> <div class="list-of-examples"> <p> <b>List of Examples</b> </p> <dl> <dt>2.1. <a href="CoreDbCXXUsage.html#MyDb-cxx">MyDb Class</a></dt> <dt>3.1. <a href="DbCXXUsage.html#VENDORCXXStruct">VENDOR Structure</a></dt> <dt>3.2. <a href="DbCXXUsage.html#InventoryData">InventoryData Class</a></dt> <dt>3.3. <a href="DbCXXUsage.html#exampledbload-cxx">example_database_load</a></dt> <dt>4.1. <a href="CoreCursorUsage.html#CoreEIR-cxx">example_database_read</a></dt> </dl> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"> </td> <td width="20%" align="center"> </td> <td width="40%" align="right"> <a accesskey="n" href="preface.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top"> </td> <td width="20%" align="center"> </td> <td width="40%" align="right" valign="top"> Preface</td> </tr> </table> </div> </body> </html>y~or5J={Eeu磝Qk ᯘG{?+]ן?wM3X^歌>{7پK>on\jy Rg/=fOroNVv~Y+ NGuÝHWyw[eQʨSb> >}Gmx[o[<{Ϯ_qFvM IENDB`