Question

我在CRM Online 2013上运行了一个FetchXml报告，其中有大约12,000条记录。数据通过脚本从CRM Online转移到SQL数据库。我希望当前修改的记录仅转移到SQL。这是我的查询

string fetchXml = string.Format(
    @"<fetch version='1.0' output-format='xml-platform' mapping='logical' distinct='false'>
        <entity name='new_studentinformation' enableprefiltering ='1' prefilterparametername='CRM_Filterednew_studentinformation'>
            <attribute name='new_studentid' />
            <attribute name='new_primaryhomeroom' />
            <attribute name='new_lastname' />
            <attribute name='new_firstname' />
            <attribute name='new_busnumber' />
            <attribute name='new_building' />
            <attribute name='new_grade' />
            <attribute name='modifiedon' />
            <attribute name='new_studentinformationid' />
            <filter type='and'>
                <condition attribute='modifiedon' value='{0}' operator='on-or-after'/>
            </filter>
            <link-entity name='annotation' from='objectid' to='new_studentinformationid' alias='Notes' link-type='outer'>
                <attribute name='documentbody'/>
            </link-entity>
        </entity>
    </fetch>",
    DateTime.Now.AddMinutes(-2).ToString());

查询最近两分钟修改过的记录并将其转移到SQL数据库。这个问题有两个部分：

如何更改查询以便它带来最新的修改记录而是在最后两分钟修改过的那个？
第二，将获取XML总是查询前5,000条记录？如果改变了怎么办？让我们说，在第6,000条记录中，它也会被查询吗？

Answer 1

您可以按修改日期降序排序，然后通过更改fetch xml来获取第一条记录，如下所示。还可以通过添加count =＆＃34;＆＃34;属性可以控制检索的记录数。我觉得有最大值。可能有5000条记录。

<fetch version='1.0' output-format='xml-platform' count="5000" page="1" no-lock="false"  mapping='logical' distinct='false'>
  <entity name='new_studentinformation' enableprefiltering ='1' prefilterparametername='CRM_Filterednew_studentinformation'>
    <attribute name='new_studentid' />
    <attribute name='new_primaryhomeroom' />
    <attribute name='new_lastname' />
    <attribute name='new_firstname' />
    <attribute name='new_busnumber' />
    <attribute name='new_building' />
    <attribute name='new_grade' />
    <attribute name='modifiedon' />
    <attribute name='new_studentinformationid' />
    <filter type='and'>
      <condition attribute='modifiedon' value='{0}' operator='on-or-after'/>
    </filter>
    <order attribute='modifiedon' descending='true' />
    <link-entity name='annotation' from='objectid' to='new_studentinformationid' alias='Notes' link-type='outer'>
      <attribute name='documentbody'/>
    </link-entity>
  </entity>
</fetch>

FetcXml会不会搜索前5000条记录？

1 个答案: