What is a context filter in Tableau?
A context filter is a filter that creates a temporary subset of data. Other filters then work only on this subset, improving performance and enabling dependent filtering.
Why use a context filter instead of a regular filter?
Context filters improve performance by reducing data early and allow creating dependent filters that rely on the filtered subset.
How does Tableau process filters when a context filter is applied?
Tableau first applies the context filter to create a temporary table, then applies other filters on this smaller data set.
What happens if you remove a context filter?
Removing a context filter removes the temporary subset, so all other filters apply to the full data set again, which may slow down performance.
Can context filters be used with calculated fields?
Yes, context filters can be used to limit data before calculated fields are evaluated, ensuring calculations use the filtered subset.
What is the main purpose of a context filter in Tableau?
Context filters create a temporary subset of data that other filters use, improving performance and enabling dependent filtering.
When does Tableau apply context filters during filtering?
Tableau applies context filters first to create a temporary table, then applies other filters on this smaller data set.
Which of the following is a benefit of using context filters?
Context filters allow dependent filters to work on the filtered subset, enabling more precise filtering logic.
What happens if you remove a context filter?
Removing a context filter means other filters apply to the full data set, which can reduce performance.
Can context filters affect calculated fields?
Context filters limit the data before calculated fields are evaluated, so calculations use the filtered subset.
Explain what a context filter is and why it is useful in Tableau.
Describe the order in which Tableau applies filters when a context filter is present.