获取返回插入这条数据的主键

<insert id="insertProduct-MS-SQL" parameterClass="product">  
    insert into PRODUCT (PRD_DESCRIPTION)  
    values (#description#)  
    <selectKey resultClass="int" type="post" keyProperty="id" >  
        select @@IDENTITY as value  
    </selectKey>  
</insert> 

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