Sophie

Sophie

distrib > Fedora > 15 > i386 > by-pkgid > 864d1c3c3cd8df4e3a2692faf8776e05 > files > 121

db4o-doc-7.4-2.fc13.i686.rpm

<html>
  <head>
    <META http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Types Of Locks</title>
    <link rel="stylesheet" type="text/css" href="../../../style.css">
  </head>
  <body>
    <div class="CommonContent">
      <div class="CommonContentArea">
        <h1>Types Of Locks</h1><p>Locking can also be classified by
the entities that are being locked. Usually the following types are
distinguished:</p>

<ul class="unIndentedList"><li>
Page locking: all the data on a specific memory page is
locked.</li><li>
Cluster locking: all the objects in a cluster are
locked (applies only to cluster-enabled object databases).</li><li>
Class or table locking: all objects of a class (OODBMS)
or all rows in a table (RDBMS) will be locked.</li><li>Object or instance locking: a single object (OODBMS)
or a single relational tuple (RDBMS) will be locked.

</li></ul></div>
    </div>
    <div id="footer">
					This revision (2) was last Modified 2007-06-13T18:36:27 by Tetyana.
				</div>
  </body>
</html>