跨用戶訪問數據庫

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="org.sg.ombss.dal.dao.TranslateDataDao">
    <insert id="writeDataToDataBase"> 
        INSERT INTO JS_69KT.biz_idx_name (IDX_CODE, BIZ_CODE, IDX_NAME) 
        SELECT IDX_CODE,BIZ_CODE,IDX_NAME FROM OMBSS.OMBSS_BIZ_IDX
    </insert>
</mapper>

跨用戶訪問數據庫並作相應的操做mabits在這個過程作了些什麼呢？
OMBSS的權限比較大，mabits封裝jdbc的connection爲session 先到ombss 下查數據再操做69kt下的表。