Learning Tableau

Filtering data

Often, you will want to filter data in Tableau in order to perform analysis on a subset of data, narrow your focus, or drill into detail. Tableau offers multiple ways to filter data.

If you want to limit the scope of your analysis to a subset of data, you can filter the data at the source:

• Data source filters are applied before all other filters and are useful when you want to limit your analysis to a subset of data. These filters are applied before any other filters.
• Extract filters limit the data that is stored in a TDE file (.tde). Data source filters are often converted into extract filters if they are present when you extract the data.
• Custom SQL filters can be accomplished using a live connection with custom SQL that has a Tableau ...