What is the Row Data Limit for Microsoft SQL?

According to the FAQ's it seems their isn't one, at least on the Workbench side. https://knowledge.domo.com/Connect/Connecting_to_Data_Using_Workbench_5/13Workbench_5_FAQs

However if the table is huge you may want to think about the best way to get your data up their, perhaps in chunks rather than all at once but that's up to you how you want to do it.