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yasuhirokimura-db18/docs/csharp/html/F_BerkeleyDB_DatabaseConfig_NonDurableTxns.htm
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Yasuhiro KIMURA 923a4cd4e6 Update to 18.1.32
2020-07-24 00:46:17 +09:00

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<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>NonDurableTxns Field</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="F_BerkeleyDB_DatabaseConfig_NonDurableTxns" /><meta name="guid" content="F_BerkeleyDB_DatabaseConfig_NonDurableTxns" /><xml><MSHelp:Attr Name="AssetID" Value="F:BerkeleyDB.DatabaseConfig.NonDurableTxns" /><MSHelp:TOCTitle Title="NonDurableTxns Field" /><MSHelp:RLTitle Title="DatabaseConfig.NonDurableTxns Field (BerkeleyDB)" /><MSHelp:Keyword Index="A" Term="F:BerkeleyDB.DatabaseConfig.NonDurableTxns" /><MSHelp:Keyword Index="A" Term="frlrfBerkeleyDBDatabaseConfigClassNonDurableTxnsTopic" /><MSHelp:Keyword Index="K" Term="NonDurableTxns field" /><MSHelp:Keyword Index="K" Term="DatabaseConfig.NonDurableTxns field" /><MSHelp:Keyword Index="F" Term="NonDurableTxns" /><MSHelp:Keyword Index="F" Term="DatabaseConfig.NonDurableTxns" /><MSHelp:Keyword Index="F" Term="BerkeleyDB.DatabaseConfig.NonDurableTxns" /><MSHelp:Attr Name="APIType" Value="Managed" /><MSHelp:Attr Name="APILocation" Value="libdb_dotnet181.dll" /><MSHelp:Attr Name="APIName" Value="BerkeleyDB.DatabaseConfig.NonDurableTxns" /><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="Abstract" Value="If true, Berkeley DB does not write log records for this database." /><MSHelp:Attr Name="AssemblyVersion" Value="18.1.32.0" /></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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If true, Berkeley DB does not write log records for this database.
</div><p />
<b>Namespace:</b>
 <a href="N_BerkeleyDB.htm">BerkeleyDB</a><br />
<b>Assembly:</b>
 <span sdata="assembly">libdb_dotnet181</span> (in libdb_dotnet181.dll) Version: 18.1.32.0<h1 class="heading"><span onclick="ExpandCollapse(syntaxToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(syntaxToggle, event)" tabindex="0"><img id="syntaxToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Syntax</span></h1><div id="syntaxSection" class="section" name="collapseableSection" style=""><div id="syntaxCodeBlocks" class="code"><span codeLanguage="CSharp"><table><tr><th>C#</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">public</span> <a href="http://msdn2.microsoft.com/en-us/library/a28wyd50" target="_blank">bool</a> <span class="identifier">NonDurableTxns</span></pre></td></tr></table></span><span codeLanguage="VisualBasicDeclaration"><table><tr><th>Visual Basic (Declaration)</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">Public</span> <span class="identifier">NonDurableTxns</span> <span class="keyword">As</span> <a href="http://msdn2.microsoft.com/en-us/library/a28wyd50" target="_blank">Boolean</a></pre></td></tr></table></span><span codeLanguage="ManagedCPlusPlus"><table><tr><th>Visual C++</th></tr><tr><td><pre xml:space="preserve"><span class="keyword">public</span>:
<a href="http://msdn2.microsoft.com/en-us/library/a28wyd50" target="_blank">bool</a> <span class="identifier">NonDurableTxns</span></pre></td></tr></table></span></div></div><h1 class="heading"><span onclick="ExpandCollapse(remarksToggle)" style="cursor:default;" onkeypress="ExpandCollapse_CheckKey(remarksToggle, event)" tabindex="0"><img id="remarksToggle" class="toggle" name="toggleSwitch" src="../icons/collapse_all.gif" />Remarks</span></h1><div id="remarksSection" class="section" name="collapseableSection" style="">
If Berkeley DB does not write log records, updates of this database
exhibit the ACI (atomicity, consistency, and isolation)
properties, but not D (durability); database integrity
persists if the application or system does not fail.
The database file must be verified and/or restored
from backup after a failure. In order to ensure integrity after
application shut down, the database must be synced when closed, or
all database changes must be flushed from the database environment
cache using either
<a href="M_BerkeleyDB_DatabaseEnvironment_Checkpoint.htm">Checkpoint<span class="languageSpecificText"><span class="cs">()</span><span class="cpp">()</span><span class="nu">()</span></span></a> or
<a href="M_BerkeleyDB_DatabaseEnvironment_SyncMemPool.htm">SyncMemPool<span class="languageSpecificText"><span class="cs">()</span><span class="cpp">()</span><span class="nu">()</span></span></a>. All database objects
for a single physical file must set NonDurableTxns, including
database objects for different databases in a physical file.
</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_DatabaseConfig.htm">DatabaseConfig 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"> </span>
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