Multiple Tables - One DB

I have a Microsoft SQL database hosted on Azure. We currently use Tableau and I'm looking at Looker as an alternative. The main issue I seem to be having is connecting to the DB but seemingly needing a separate connection per table within the DB. Given the number of tables (about 40 - externally developed so not something we've had a control over), this seems overly complex in comparison to Tableau (where one connection exists to the DB and you pick the tables you want dynamically per dashboard/worksheet you want to create). Is there a way around this or is this simply the way it is for Looker? Thanks in advance.

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