IBATIS中的include功能

<sql id="selectItem_fragment">  

    FROM items  

    WHERE parentid = 6  

</sql>  

<select id="selectItemCount" resultClass="int">  

    SELECT COUNT(*) AS total  

    <include refid="selectItem_fragment"/>  

</select>  

<select id="selectItems" resultClass="Item">  

    SELECT id, name  

    <include refid="selectItem_fragment"/>  

</select>