正在运行<p:outputLabel value="#{bundle.CreateReportsLabel_examrequisitions}" for="examrequisitions" />
<p:selectOneMenu id="examrequisitions" value="#{reportsController.selected.examrequisitions}" required="true" requiredMessage="#{bundle.CreateReportsRequiredMessage_examrequisitions}">
<f:selectItems value="# examrequisitionsController.itemsAvailableSelectOne}" var="examrequisitionsItem" itemValue="#{examrequisitionsItem}"/>
</p:selectOneMenu>
<p:outputLabel value="#{bundle.CreateReportsLabel_status}" for="status" />
<p:selectOneRadio id="status" value="#{reportsController.selected.status}">
<f:selectItems value="#{reportsController.status}" var="status" itemLabel="#{status}" itemValue="#{status}" />
</p:selectOneRadio>
<p:outputLabel value="#{bundle.CreateReportsLabel_outcome}" for="outcome" />
<p:inputTextarea id="outcome" value="#{reportsController.selected.outcome}" title="#{bundle.CreateReportsTitle_outcome}" rows="7" maxlength="100" />
。我有一个存储过程，我使用多个选择生成SQL Server 2014。下面是一个简化的例子。
XML查看I / O，我发现SELECT
(SELECT ... FROM X WHERE ID = @ID FOR XML PATH('x'), TYPE),
(SELECT ... FROM Y WHERE ID = @ID FOR XML PATH('y'), TYPE),
(SELECT ... FROM Z WHERE ID = @ID FOR XML PATH('z'), TYPE),
(SELECT IndexedColumn1, IndexedColumn2
FROM W WHERE ID = @ID FOR XML PATH('w'), TYPE),
FOR XML PATH(''), ROOT(root')
和IndexedColumn1没有显示任何IndexedColumn2。但是，当我在列表中添加几个简单选项时，我突然看到这些索引列的大量I / O.为什么呢？！
当查询变大时，似乎不考虑我的非聚集索引，即使此查询独立于查询的其余部分。我应该忽略这些增加的logical reads还是我确实做错了什么？