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SPQuery查询语法简要说明(转) - 疯子峰 - 博客园
疯子峰 · 2010-01-27 · via 博客园 - 疯子峰

SPQuery查询语句是以XML格式展现出来的,如下面的例子

<Query>
  
<OrderBy>
    
<FieldRef Name="Modified" Ascending="FALSE"></FieldRef>
  
</OrderBy>
  
<Where>
    
<Or>
      
<Neq>
        
<FieldRef Name="Status"></FieldRef>  //字段名
        
<Value Type="Text">Completed</Value> //字段值
      
</Neq>
      
<IsNull>
        
<FieldRef Name="Status"></FieldRef>
      
</IsNull>
    
</Or>
  
</Where>
</Query>

现在我用大家熟悉的SQL语法来和它做个比较

SPQuery SQL
<Where></Where> Where
<OrderBy></OrderBy> Order By
<And></And> And
<Or></Or> Or
<Eq></Eq>    =
<Geq></Geq> >=
<Gt></Gt> >
<Leq></Leq> <=
<Lt></Lt> <
<Neq></Neq> !=

注意:
<And>条件只能包含两个以内的相同子元素,也就是说一个<And>最多只能有两个<Eq>子元素,但是<And>可以包含另一个<And>子元素,所以多个<And>查询条件时我们要用<And>分层的方式来写,我现在只用到了AND,所以就了解这个,其它的不知道是不是也是这样。

这些常用的都列在这里了,有一些特殊的还是去看SDK吧
下载地址

Windows Sharepoint Services SDK

转自 

http://www.cnblogs.com/nick-yan/articles/611158.html