Bigquery: Append to a nested record - sql

Question

I'm currently checking out Bigquery, and I want to know if it's possible to add new data to a nested table.
For example, if I have a table like this:
[
{
"name": "name",
"type": "STRING"
},
{
"name": "phone",
"type": "RECORD",
"mode": "REPEATED",
"fields": [
{
"name": "number",
"type": "STRING"
},
{
"name": "type",
"type": "STRING"
}
]
}
]
And then I insert a phone number for the contact John Doe.
INSERT into socialdata.phones_examples (name, phone) VALUES("Jonh Doe", [("555555", "Home")]);
Is there an option to later add another number to the contact ? To get something like this:
I know I can update the whole field, but I want to know if there is way to append to the nested table new values.

Answer 1

When you insert data into BigQuery, the granularity is the level of rows, not elements of the arrays contained within rows. You would want to use a query like this, where you update the relevant row and append to the array:
UPDATE socialdata.phones_examples
SET phone = ARRAY_CONCAT(phone, [("555555", "Home")])
WHERE name = "Jonh Doe"

Answer 2

if you need to update multiple records for some users - you can use below
#standardSQL
UPDATE `socialdata.phones_examples` t
SET phone = ARRAY_CONCAT(phone, [new_phone])
FROM (
SELECT 'John Doe' name, STRUCT<number STRING, type STRING>('123-456-7892', 'work') new_phone UNION ALL
SELECT 'Abc Xyz' , STRUCT('123-456-7893', 'work') new_phone
) u
WHERE t.name = u.name
or if those updates are available in some table (for example socialdata.phones_updates):
#standardSQL
UPDATE `socialdata.phones_examples` t
SET phone = ARRAY_CONCAT(phone, [new_phone])
FROM `socialdata.phones_updates` u
WHERE t.name = u.name