# which nosql db is better for linking two json files to model for ml.net?

I attached json file but I need to link this with another json file to model for ml.net

[{"userid":"U471363",
"timing":"11/15/2019 11:04:18 AM",
"vs":["N21411","N21278","N72571","N46575","N16463","N44431","N77957","N80201","N123570","N24446","N24446","N42718"]}