With in the JSON it is very touch to split the values from Parameters while we connect to REST connector.
RC:
SQL SELECT
A, B, C, D
FROM JSON (wrap on) "root"
WITH CONNECTION (
QUERY "ProductId" "$(vProductId)");
Load A, B, C, D, SubField("root", '@') as "root" Resident RC;
Here "root" is my Query parameters which constantly stored in REST connector section.
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