I have a workbook that is getting connected to an SQL database, I selected an extract connection mode, but my DataSource is really big, do I need to create the local extract before publishing on server? What If I have a so big datasource that it's impossible to my local to create the extract? Is there any possible workaround?
What are you connecting to on the SQL database ? If it's simple, you can change things in the database to only return a few records, then refresh & publish in Tableau, then fix the change in SQL so that all records are returned.