title: Why are my parameters in Tableau slowing down processor? I am connected via Custom SQL Query via a View
body: <p>I have an <code>SQL Database</code> (SQL Server 2008 r2) that I link to <strong>Tableau</strong> via a <strong>Custom SQL Query</strong> (<code>connected to a view in SQL</code>).  Instead of adding the new fields in the SQL Database, I am creating <strong>calculated fields</strong> in Tableau.  <code>The</code>data source connected to Tableau is a view<code>I created by joining other views</code> (<code>there is a pivot I join to the main table</code>).  <strong>I want to now add the parameters from tableau</strong> <code>as new fields in SQL</code> <strong>and remove them from Tableau</strong> since it is bogging the tool down.  What do you recommend to be the best approach in this?  I have never <code>added fields to a view and curious how this can be achieved.</code>  <strong>All of the parameters work in tableau</strong> <code>only via the custom SQL query (the view created)</code>, <code>but would not if I created them from the main data table in SQL</code>..  I hope this makes sense.  Thank you so much for the help!  Have a great day -p</p>