Snowflake - Querying Nested JSON - json

Question

I need some help querying this JSON file I've ingested into a temp table in Snowflake. So, I've created a JSON_DATA variant column and plan to query and do a COPY INTO another table, but my query isn't working yet... I feel I'm close (possibly?)
JSON layout:
{
"nextPage": "01",
"page": "0",
"status": "ok",
"transactions": [
{
"id": "65985",
"recordTp": "vendorbill",
"values": {
"account": [
{
"text": "14500 Deferred Expenses",
"value": "249"
}
],
"account.number": "1450",
"account.type": [
{
"text": "Deferred Expense",
"value": "DeferExpense"
}
],
"amount": "51733",
"classnohierarchy": [
{
"text": "901 Corporate",
"value": "139"
}
],
"currency": [
{
"text": "Canadian Dollar",
"value": "3"
}
],
"customer.altname": "V Sties expenses (Tor)",
"customer.custate": "12/31/2019",
"customer.custentient": "ada Inc.",
"customer.custendate": "1/1/2019",
"customer.entyid": "PR781",
"departmentnohierarchy": [
{
"text": "8rity",
"value": "37"
}
],
"fxamount": "689",
"location": [
{
"text": "Othad Projects",
"value": "48"
}
],
"postingperiod": [
{
"text": "Jan 2020",
"value": "1"
}
],
"subsidiary.custrecord_region": [
{
"text": "CANADA",
"value": "3"
}
],
"subsidiarynohierarchy": [
{
"text": "ada Inc.",
"value": "25"
}
]
}
},
I've been able to query the values that are not (deeply) nested but I need help getting, for example, the values from 'classnohierarchy', to get both the 'text' and 'value' I tried:
transactions.value:"values".classnohierarchy.text::string as class_txt,
transactions.value:"values".classnohierarchy.value::string as class_val,
but it's returning NULL values.
Below is my entire query:
SELECT
JSON_DATA:status::string as connection_status,
transactions.value:id::string as id,
transactions.value:recordType::string as record_type,
transactions.value:"values"::variant as trans_val,
transactions.value:"values".account as acc,
transactions.value:"values".account.text as text,
transactions.value:"values".account.value as val,
transactions.value:"values"."account.number"::string as acc_num,
transactions.value:"values"."account.type".text::string as acc_type_txt,
transactions.value:"values"."account.type".value::string as acc_type_val,
transactions.value:"values".amount::string as amount,
**transactions.value:"values".classnohierarchy.text::string as class_txt,
transactions.value:"values".classnohierarchy.value::string as class_val,**
transactions.value:"values".currency.text::string as currency_text,
transactions.value:"values".currency.value::string as currency_val,
transactions.value:"values"."customer.altname"::string as customer_project_name,
transactions.value:"values"."customer.custate"::string as customer_end_date,
transactions.value:"values"."customer.custentient"::string as customer_end_client,
transactions.value:"values"."customer.custendate"::string as customer_start_date,
transactions.value:"values"."customer.entyid"::string as customer_project_id,
transactions.value:"values".departmentnohierarchy.text::string as department_name,
transactions.value:"values".departmentnohierarchy.value::string as department_value,
transactions.value:"values".fxamount::string as fx_amount,
transactions.value:"values".location.text::string as product_name,
transactions.value:"values".postingperiod.text::string as postingperiod,
transactions.value:"values".postingperiod.value::string as postingperiod,
transactions.value:"values"."subsidiary.custrecord_region".text::string as region_name,
transactions.value:"values"."subsidiary.custrecord_region".value::string as region_value,
transactions.value:"values".subsidiarynohierarchy.text::string as entity_name,
transactions.value:"values".subsidiarynohierarchy.value::string as entity_value,
FROM MY_TABLE,
LATERAL FLATTEN (JSON_DATA:transactions) as transactions
and here's a picture of whats showing in Snowflake:
SNOWFLAKE_SCREENSHOT

Answer 1

departmentnohierarchy is an array. you need to mention the index as below.
select *,transactions.VALUE:"values".departmentnohierarchy[0].value::text as department_name
FROM jsont1,
LATERAL FLATTEN (JSON_DATA:transactions) as transactions