oracle下mybatis查詢____oracle

<select id="getException" resultMap="exceptionInfoMap">        select * from tb_jk_exp_log where SYS_ID = #{systemId}        <if test="startTime != null">            <![CDATA[              and EXP_TIME >= #{startTime,jdbcType=TIMESTAMP }            ]]>        </if>        <if test="endTime != null">            <![CDATA[              and EXP_TIME <= #{endTime , jdbcType=TIMESTAMP }            ]]>        </if>        <if test="number != null">            <![CDATA[             and  rownum <= #{number , jdbcType=NUMERIC }            ]]>        </if>        <if test="order_ == 'desc' ">            <![CDATA[              order by EXP_TIME  desc            ]]>        </if>        <if test="order_ == 'asc' ">            <![CDATA[              order by EXP_TIME  desc            ]]>        </if>    </select>