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| <title>Creating an Association</title> | |
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| <h1 class="title topictitle1">Creating an Association</h1> | |
| <div class="body conbody"><p class="shortdesc">This sectoin provides information to create Association between Entities.</p> | |
| <p class="p">An association is a named relationship between two entities. Association defines a | |
| peer-to-peer relationship between participating entity types and can support different | |
| multiplicities at both the ends. An example of an association is the relationship | |
| between the Customer and Order entities.</p> | |
| <p class="p">You can create three types of association:</p> | |
| <ul class="ul" id="loio50dc336f79024ca2a560d049846eb5e8__ul_cmp_qc2_gj"><li class="li"><strong class="ph b">Single Association</strong> - This is the unidirectional association, which allows navigation | |
| in only one direction. See <a class="xref" href="Creating a Single Association.html">Creating a Single Association</a> | |
| .</li> | |
| <li class="li"><strong class="ph b">Bi-directional Association</strong> - The bi-directional association allows navigation in both | |
| directions of the association. The bi-directional association is defaulted to | |
| one-to-many. See <a class="xref" href="Creating Bidirectional Association.html" title="Instructions about how to create a bidirectional associations.">Creating a Bidirectional Association</a> .</li> | |
| <li class="li"><strong class="ph b">Self Association </strong> - Self association has the ends of the association point to the same | |
| entity . See <a class="xref" href="Creating a Self Association.html" title="Explains how to create self associations in the entities.">Creating a Self Association</a>.</li> | |
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