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<a accesskey="3" href="page.php?w=database_theory&amp;p=2">3.Next</a>
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<p><b>Database theory</b> encapsulates a broad range of topics related to the study and research of the theoretical realm of <a href="page.php?w=database">database</a>s and <a href="page.php?w=database_management__system">database management  system</a>s.</p>

<p>Theoretical aspects of data management include, among other areas, the foundations of query languages, <a href="page.php?w=Computational_complexity_theory">computational complexity</a> and <a href="page.php?w=expressive_power_%28computer_science%29">expressive power</a> of queries, <a href="page.php?w=finite_model_theory">finite model theory</a>,</p><p>
<a accesskey="3" href="page.php?w=database_theory&amp;p=2">3.Next</a>
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