實現功能：把數據庫Db1中ammeter表的數據同步到Db2中的meter_bill表中去

代碼如下：

INSERT INTO db2.meter_bill (
    oms_meter_id,
    house_id,
    meter_no,
    meter_number,
    first_quantity,
    zoom,
    last_month,
    last_month_quantity,
    last_month_create_date,
    current_month,
    current_month_quantity,
    current_use_quantity,
    remark,
    create_by,
    creation_date,
    last_updated_by,
    last_updated_date,
    delete_flag
)
 
SELECT _id,
    house_id,
    water_meter_no,
    ext_meter_no,
    first_quantity,
    zoom,
    last_month,
    last_month_quantity,
    last_month_create_date,
    current_month,
    current_month_quantity,
    current_use_quantity,
    remark,
    create_by,
    creation_date,
    last_updated_by,
    last_updated_date,
    delete_flag
 
FROM db1.ammeter

實際上就是把從db1的ammeter表中查出來的數據，插入到db2中的meter_bill表中去,最主要的是字段名要一一對應，mark！

關於在不同的數據庫中的同步表的數據