Information from E-mail systems, calenders, databases and other data sources is needed on mobile devices for review, update, and processing.

移动设备需要查看、更新和处理来自电子邮件系统、日程表、数据库和其他数据源的信息。

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For example, if you want to issue an UPDATE statement to change the E-mail address of a particular client's contact information, you simply have to supply the new E-mail address.

例如，如果要发出一条update语句来更改某个特定客户的联系方式信息中的email地址，就必须在xml列中提供全部联系方式信息，而不仅仅是新的email元素值。

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