So i have been using Azure DB for a while, but i ran in problem that I can't store in Azure large files and as a solution I found Storage Account.
To make queries I used tedious (JS). Can I save and recieve data via JS?
as far as I know tedious is for interacting with SQL server. You may want to check out https://www.npmjs.com/package/@azure/storage-blob for interacting with Azrue Blob storage service.