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<h1 class="topictitle1">Data considerations for a distributed relational database</h1>
<div><p>The placement of data in respect to the applications that need
it is an important consideration when designing a distributed relational database.</p>
<div class="section"><p>When making such placement decisions, consider the
following items:</p>
</div>
<div class="section"><ul><li>The level of performance needed from the applications</li>
<li>Requirements for the security, currency, consistency, and availability
of the data across locations</li>
<li>The amount of data needed and the predicted patterns of data access</li>
<li>If the distributed relational database functions needed are available</li>
<li>The skills needed to support the server and the skills that are actually
available</li>
<li>Who "owns" the data (that is, who is responsible for maintaining the accuracy
of the data)</li>
<li>Management strategy for cross-system security, accounting, monitoring
and tuning, problem handling, data backup and recovery, and change control</li>
<li>Distributed database design decisions, such as where to locate data in
the network and whether to maintain single or multiple copies of the data</li>
</ul>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rbal1desappnet.htm" title="Designing a distributed relational database involves making choices about applications, network considerations, and data considerations.">Design the application, network, and data for a distributed relational database</a></div>
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