如何在xml文件中定义主键 [英] how to define the primary key in xml file

问题描述

您好我的所有查询是我必须在xml文件中保存日期我已成功完成但我的记录是没有主键保存所以我的问题是如何声明主键是在XML文件我的日期是保存喜欢

Hi all my query is that i have to save the date in the xml file which i have done successfully but my record is saving without primary key so my question is how can i declare primary key is in XML file my date is saving like

<Comments>
   <Name>a</Name>
   <location>aa</location>
   <Email>[e-mail]</Email>
   <Description>dfedf</Description>
   <Date>10/5/2013 1:17:31 PM</Date>
 </Comments>
 <Comments>
   <Name>a</Name>
   <location>aa</location>
   <Email>[e-mail]</Email>
   <Description>dfedf</Description>
   <Date>10/5/2013 1:17:32 PM</Date>
 </Comments>

推荐答案

set-primary-key-element-xml [ ^ ]

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