saving record into different tables?

[l vic]

Hi,
I have a json record that contains array "mylst":
{
    "id": 0,
    "name": "Root",
     "mylist": [{
      "id": 10,
      "info": "2am-3am"
    },
    {
        "id": 11,
        "info": "3AM-4AM"
    },
    {
        "id": 12,
"info": "4am-5am"
    }]

}
I have to save root data into one db table and array into another... Can
someone recommend an approach to "splitting" of record for 2 different
database writers?
Thank you,
V