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<div class="sect1"><!-- infolevel="all" infotype="General" --><a id="sthref255" name="sthref255"></a>
<h1>Column Definition Support</h1>
<p>The JPA Details view for attributes enables you to modify the nullable and unique column constraints and such column properties as length, scale, and precision.</p>
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<p class="titleinfigure">Defining Columns in JPA Details View for Entity Attributes</p>
<img src="img/column_support_new.png" alt="The JPA Details View for an entity with its Details section expanded to show the column configuration parameters." title="The JPA Details View for an entity with its Details section expanded to show the column configuration parameters." /><br /></div>
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<img src="img/ngrelr.png" alt="Related reference" title="Related reference" /><br />
<br />
<a href="ref_new_jpa_project_wizard.htm#CACBJGBG">Create New JPA Project wizard</a><br />
<a href="ref_persistence_perspective.htm#BABIFBDB">JPA Development perspective</a>
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