java.sql.SQLException: ORA-64203: 目标缓冲区太小, 无法容纳字符集转换之后的 CLOB 数据

<!--获取ae45at-->
    <select id="selectAe45at" parameterClass="java.util.Map" resultClass="java.util.HashMap">
        <!--select caz045,aac001,to_char(aae013) aae013,flag,aaa121 from ae45at where caz045=#caz045#-->
        select caz045,aac001,aae013,flag,aaa121 from ae45at where caz045=#caz045#
    </select>