<html xmlns:MSHelp="http://msdn.microsoft.com/mshelp" xmlns:mshelp="http://msdn.microsoft.com/mshelp" xmlns:ddue="http://ddue.schemas.microsoft.com/authoring/2003/5" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:msxsl="urn:schemas-microsoft-com:xslt"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8" /><META NAME="save" CONTENT="history" /><title>BaseDatabase Properties </title><link rel="stylesheet" type="text/css" href="../styles/presentation.css" /><link rel="stylesheet" type="text/css" href="ms-help://Hx/HxRuntime/HxLink.css" /><script type="text/javascript" src="../scripts/EventUtilities.js"> </script><script type="text/javascript" src="../scripts/SplitScreen.js"> </script><script type="text/javascript" src="../scripts/Dropdown.js"> </script><script type="text/javascript" src="../scripts/script_manifold.js"> </script><script type="text/javascript" src="../scripts/script_feedBack.js"> </script><script type="text/javascript" src="../scripts/CheckboxMenu.js"> </script><script type="text/javascript" src="../scripts/CommonUtilities.js"> </script><meta name="container" content="BerkeleyDB" /><meta name="file" content="Properties_T_BerkeleyDB_BaseDatabase" /><meta name="guid" content="Properties_T_BerkeleyDB_BaseDatabase" /><xml><MSHelp:Attr Name="AssetID" Value="Properties.T:BerkeleyDB.BaseDatabase" /><MSHelp:TOCTitle Title="BaseDatabase Properties " /><MSHelp:RLTitle Title="BaseDatabase Properties (BerkeleyDB)" /><MSHelp:Keyword Index="A" Term="Properties.T:BerkeleyDB.BaseDatabase" /><MSHelp:Keyword Index="A" Term="frlrfBerkeleyDBBaseDatabasePropertiesTopic" /><MSHelp:Keyword Index="K" Term="BaseDatabase class, properties" /><MSHelp:Attr Name="DevLang" Value="CSharp" /><MSHelp:Attr Name="DevLang" Value="VB" /><MSHelp:Attr Name="DevLang" Value="C++" /><MSHelp:Attr Name="Locale" Value="en-us" /><MSHelp:Attr Name="TopicType" Value="kbSyntax" /><MSHelp:Attr Name="TopicType" Value="apiref" /><MSHelp:Attr Name="AssemblyVersion" Value="4.8.24.0" /></xml></head><body><input type="hidden" id="userDataCache" class="userDataStyle" /><input type="hidden" id="hiddenScrollOffset" /><img id="collapseImage" style="display:none; 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</td></tr></table><table id="gradientTable"><tr><td class="nsrBottom" background="../icons/gradient.gif" /></tr></table></div><div id="mainSection"><div id="mainBody"><div id="allHistory" class="saveHistory" onsave="saveAll()" onload="loadAll()" /><span style="color: DarkGray"> </span><p>The <a href="T_BerkeleyDB_BaseDatabase.htm">BaseDatabase</a> type exposes the following members.</p><h1 class="heading"><span onclick="ExpandCollapse(propertyTableToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(propertyTableToggle, event)" tabindex="0"><img id="propertyTableToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Properties</span></h1><div id="propertyTableSection" class="section" name="collapseableSection" style=""><table id="memberList" class="members" frame="lhs" cellpadding="2"><col width="10%" /><tr><th class="iconColumn">
</th><th class="nameColumn">Name</th><th class="descriptionColumn">Description</th></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_AutoCommit.htm">AutoCommit</a></td><td><div class="summary">
If true, all database modification operations based on this object
will be transactionally protected.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_CacheSize.htm">CacheSize</a></td><td><div class="summary">
The size of the shared memory buffer pool -- that is, the cache.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Creation.htm">Creation</a></td><td><div class="summary">
The CreatePolicy with which this database was opened.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_DatabaseName.htm">DatabaseName</a></td><td><div class="summary">
The name of this database, if it has one.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_DoChecksum.htm">DoChecksum</a></td><td><div class="summary">
If true, do checksum verification of pages read into the cache from
the backing filestore.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_EncryptAlgorithm.htm">EncryptAlgorithm</a></td><td><div class="summary">
The algorithm used by the Berkeley DB library to perform encryption
and decryption.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Encrypted.htm">Encrypted</a></td><td><div class="summary">
If true, encrypt all data stored in the database.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Endianness.htm">Endianness</a></td><td><div class="summary">
The database byte order.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_ErrorFeedback.htm">ErrorFeedback</a></td><td><div class="summary">
The mechanism for reporting detailed error messages to the
application.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_ErrorPrefix.htm">ErrorPrefix</a></td><td><div class="summary">
The prefix string that appears before error messages issued by
Berkeley DB.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Feedback.htm">Feedback</a></td><td><div class="summary">
Monitor progress within long running operations.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_FileName.htm">FileName</a></td><td><div class="summary">
The filename of this database, if it has one.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_FreeThreaded.htm">FreeThreaded</a></td><td><div class="summary">
If true, the object is free-threaded; that is, concurrently usable
by multiple threads in the address space.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_HasMultiple.htm">HasMultiple</a></td><td><div class="summary">
If true, the object references a physical file supporting multiple
databases.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_InHostOrder.htm">InHostOrder</a></td><td><div class="summary">
If true, the underlying database files were created on an
architecture of the same byte order as the current one. This
information may be used to determine whether application data needs
to be adjusted for this architecture or not.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_NoMMap.htm">NoMMap</a></td><td><div class="summary">
<p>
If true, this database is not mapped into process memory.
</p>
<p>
See <a href="P_BerkeleyDB_DatabaseEnvironment_MMapSize.htm">MMapSize</a> for further
information.
</p>
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_NonDurableTxns.htm">NonDurableTxns</a></td><td><div class="summary">
If true, Berkeley DB will not write log records for this database.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Pagesize.htm">Pagesize</a></td><td><div class="summary">
The database's current page size.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Priority.htm">Priority</a></td><td><div class="summary">
The cache priority for pages referenced by this object.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_ReadOnly.htm">ReadOnly</a></td><td><div class="summary">
If true, this database has been opened for reading only. Any attempt
to modify items in the database will fail, regardless of the actual
permissions of any underlying files.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_ReadUncommitted.htm">ReadUncommitted</a></td><td><div class="summary">
If true, this database supports transactional read operations with
degree 1 isolation. Read operations on the database may request the
return of modified but not yet committed data.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Transactional.htm">Transactional</a></td><td><div class="summary">
If true, this database has been opened in a transactional mode.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Truncated.htm">Truncated</a></td><td><div class="summary">
If true, the underlying file was physically truncated upon open,
discarding all previous databases it might have held.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_Type.htm">Type</a></td><td><div class="summary">
The type of the underlying access method (and file format). This
value may be used to determine the type of the database after an
<a href="M_BerkeleyDB_Database_Open.htm">Open(String, DatabaseConfig)</a>.
</div></td></tr><tr data="public;declared;notNetfw;"><td><img src="../icons/pubproperty.gif" title="Public property" /></td><td><a href="P_BerkeleyDB_BaseDatabase_UseMVCC.htm">UseMVCC</a></td><td><div class="summary">
If true, the database was opened with support for multiversion
concurrency control.
</div></td></tr></table></div><h1 class="heading"><span onclick="ExpandCollapse(seeAlsoToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(seeAlsoToggle, event)" tabindex="0"><img id="seeAlsoToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />See Also</span></h1><div id="seeAlsoSection" class="section" name="collapseableSection" style=""><div class="seeAlsoStyle"><a href="T_BerkeleyDB_BaseDatabase.htm">BaseDatabase Class</a></div><div class="seeAlsoStyle"><a href="N_BerkeleyDB.htm">BerkeleyDB Namespace</a></div></div></div><div id="footer"><div class="footerLine"><img width="100%" height="3px" src="../icons/footer.gif" title="Footer image" /></div><A NAME="feedback"></A><span id="fb" class="feedbackcss" style="display: none;"> </span>
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