Hi,
Could you please send me more details about your project? (how many db tables are involved, are they related each other by foreign keys, are they using indexes, how many rows/columns has the largest table, what are the requirements for visualisation - number of views, filters, type of graphs, grid/table presentation, need to be uploaded on Tableau Server?)
I would like to have a look trying to understand the complexity and estimate the project duration.
Thanks and regards,
Robert