Query performance tuning in Tableau - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the main goal of query performance tuning in Tableau?

The main goal is to make Tableau dashboards and reports load faster by optimizing how data queries are run.

beginner

Name one common cause of slow queries in Tableau.

Using large data sources without filters or aggregations can cause slow queries because Tableau has to process too much data.

intermediate

How does using extracts instead of live connections help with query performance?

Extracts store a snapshot of data optimized for fast reading, reducing the time Tableau takes to run queries compared to live connections.

intermediate

What is the Tableau Performance Recorder used for?

It records how long each step in loading a dashboard takes, helping you find slow queries or actions to improve.

beginner

Why should you limit the number of quick filters in Tableau dashboards?

Because each quick filter can add extra queries or processing, too many can slow down dashboard performance.

Which of these improves Tableau query performance the most?

A Using data extracts instead of live connections

B Adding more quick filters

C Increasing dashboard size with many sheets

D Using unindexed data sources

Data extracts are optimized for fast queries, unlike live connections which query the source each time.

What does Tableau's Performance Recorder help you find?

A Data refresh schedules

B Slow loading steps in dashboards

C User login times

D Data source connection errors

Performance Recorder tracks how long each dashboard action takes to identify slow parts.

Why can too many quick filters slow down Tableau dashboards?

A They reduce data source size

B They cache data locally

C They improve data aggregation

D They increase the number of queries Tableau runs

Each quick filter can trigger extra queries, increasing load time.

Which practice helps reduce query time in Tableau?

A Adding many complex calculated fields

B Using all data without filters

C Filtering data at the source before loading

D Using live connections for all data

Filtering data early reduces the amount Tableau needs to process.

What is a sign that a Tableau dashboard query is slow?

A Dashboard takes a long time to load

B Dashboard shows data instantly

C Filters update immediately

D Data source connection is offline

Slow queries cause dashboards to load slowly.

Explain three ways to improve query performance in Tableau dashboards.

Think about how data size and query complexity affect speed.

Describe how Tableau's Performance Recorder helps with query performance tuning.

It’s a tool to find where delays happen.