<doc>
	<legacy_id>366</legacy_id>
	<term>primary key</term>
	<definition><p>In a <glossary tag="database">database</glossary>, a field (or combination of fields) that is different for each <glossary tag="record">record</glossary> in the <glossary tag="database">database</glossary>. The primary key is used when changing or deleting a <glossary tag="record">record</glossary>, to uniquely identify the <glossary tag="record">record</glossary>.</p></definition>
	<categories>
	 	<category>Database Operations</category>
	</categories>
	<synonyms>
	 	<synonym>primary key</synonym>
	 	<synonym>primary keys</synonym>
	 	<synonym>primary key's</synonym>
	 	<synonym>primary keys'</synonym>
	 	<synonym>primary database key</synonym>
	 	<synonym>primary database keys</synonym>
	 	<synonym>primary database key's</synonym>
	 	<synonym>primary database keys'</synonym>
	</synonyms>
</doc>