snd-escloud/target/classes/mapper/build/ElectricFeeCompanyDao.xml

<?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="platform.modules.build.dao.ElectricFeeCompanyDao">

    <select id="findElectricReadCompanyIdsByElectricFeeId" resultType="Integer">
        select electric_read_company_id from y_electric_fee_company where electric_fee_id=#{electric_fee_id}
    </select>

    <delete id="deleteByFeeId">
        delete  from y_electric_fee_company where electric_fee_id=#{feeId}
    </delete>
</mapper>