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Tableau API Guide

Tableau API Guide

Tableau offers a variety of APIs for different purposes such as automation, integration, and extension. However, because there are so many API types—each with its own goals—it can be difficult for first-time users to decide which API to use. This post briefly introduces Tableau’s APIs and summarizes

Tableau Dashboard Action Execution Order

Tableau Dashboard Action Execution Order

When setting up dashboard actions in Tableau, you might sometimes create multiple actions with the same trigger condition. For example, both actions may filter by the Category field, but each targets a different dashboard. Action NameTrigger ConditionTarget Sheet (or Dashboard)Action AOn selecting CategoryTarget AAction BOn selecting CategoryTarget B In

How to Create Rounded Bar Chart in Tableau

How to Create Rounded Bar Chart in Tableau

When visualizing data in Tableau, the basic bar chart is one of the most commonly used chart types. However, even a slight variation in its form can create a completely different impression. Among these variations, the Rounded Bar Chart is a great way to display data values clearly while giving

How to Import Different Tables from One Excel Sheet into Tableau

How to Import Different Tables from One Excel Sheet into Tableau

Users who are accustomed to Excel’s high degree of flexibility often store different types of tables within a single worksheet. While the standard approach for importing such data into Tableau is to separate each table into its own worksheet, you can instead use Excel’s Name Manager feature to

Showing the Difference Between Two Points in a Tableau Line Chart

Showing the Difference Between Two Points in a Tableau Line Chart

When working with a line chart, you may sometimes want to know the difference between two points. In such cases, you can use Tableau’s parameter actions to capture date values and apply them in conditional logic to display the rate of change directly on your dashboard. In this example,

Using Map Chart in Tableau

Using Map Chart in Tableau

Map chart are one of Tableau’s strengths and are highly useful for visualizing data that includes country or regional values. However, because map charts inherently convey geographic information in addition to the user’s data, they can be somewhat more restrictive compared to other chart types. In this post,

Drawing Origin–Destination Paths in Tableau

Drawing Origin–Destination Paths in Tableau

In Tableau’s map charts, you can not only visualize the locations of individual points but also draw connecting lines between them. This feature is particularly useful for showing relationships between countries or visualizing movement paths between locations. However, it requires that you have the latitude and longitude information for

World Happiness Report 2025

Gallery Featured

World Happiness Report 2025

The World Happiness Report ranks countries by life satisfaction. This 2025-based dashboard lets users explore each country's trends, emotions, benevolence, and key factors. It features a redesigned layout for clearer communication.

How to use Custom Number Formatting in Tableau

How to use Custom Number Formatting in Tableau

When building visualizations in Tableau, there are times when you need precise control over how numbers are displayed. For example, you may want to simplify figures by displaying them in millions, add specific suffixes, or format negative numbers with parentheses. To meet these needs, Tableau provides the Custom Number Formatting

Why Is Serial Number 1 Dated December 31, 1899?

Why Is Serial Number 1 Dated December 31, 1899?

When converting a date to a number in Excel, Google Sheets or Tableau, you'll notice that the value 1 represents a specific point in time. In Excel, that number corresponds to January 1, 1900, but in Google Sheets and Tableau, it points to December 31, 1899. Why do

What is Tableau Next?

What is Tableau Next?

An introduction to Tableau Next, the newly released analytics platform from Tableau.

Hiding Date Field Drill-Down in Tableau

Hiding Date Field Drill-Down in Tableau

When a dashboard is built based on a specific date aggregation level, you can use Tableau’s custom date feature to prevent the drill-down button from appearing.

How to Create Gauge Chart in Tableau

How to Create Gauge Chart in Tableau

A gauge chart is a great way to visualize where a current value falls within a defined range at a glance. This guide walks you through how to create one in Tableau.

Using Date Parameter in Tableau

Using Date Parameter in Tableau

This article covers key points to keep in mind when working with date parameters in Tableau, especially given the wide variety of user needs.

Population Pyramid of South Korea

Population Pyramid of South Korea

This chart shows the projected changes in Korea's population by age group from 2022 to 2072, based on data from Statistics Korea.

Adding Country Flag Icons in Tableau

Adding Country Flag Icons in Tableau

This guide explains how to add flag images in Tableau using its feature that allows dynamic image insertion.

Why "No." is the Abbreviation for "Number"

Why "No." is the Abbreviation for "Number"

In our daily lives, we often see "Number" abbreviated as "No.". For example, when creating a list or indicating order, we use "No. 1," "No. 2," and so on. But if you look closely, the word "Number" doesn't contain the letter 'o' at all. So, why did "No." become the abbreviation for "Number"?

How to Create Radar Chart in Tableau

How to Create Radar Chart in Tableau

This article explains how to create a radar chart (also known as a spider chart), which is useful for identifying the characteristics of different items.

Using Date Constants in Tableau Calculated Fields

Using Date Constants in Tableau Calculated Fields

This is a method you can use when writing calculated fields that compare against a specific date.

Documentary Boom

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Documentary Boom

Documentary has rapidly grown to become the second-largest film genre. Despite this, voter participation remains low. With better promotion and access, the genre has strong potential for further growth.

Difference Between Top and Bottom Date Aggregation Options in Tableau

Difference Between Top and Bottom Date Aggregation Options in Tableau

This post explains the confusing aggregation options that often appear when working with date fields in Tableau.

Korea’s Elderly Poverty: A Call for Policy Rethink

Korea’s Elderly Poverty: A Call for Policy Rethink

South Korea, facing the highest old-age poverty rate in the OECD, is considering extending the retirement age. Drawing on past experience and Japan’s gradual reforms, a careful approach is needed—one that includes wage system changes and flexible reemployment policies.

How to Create Waffle Chart in Tableau

How to Create Waffle Chart in Tableau

This guide shows you how to create a waffle chart in Tableau—a useful visual for understanding what share a particular item holds in the overall market.

Korean Companies Refuse to Share the Wealth

Korean Companies Refuse to Share the Wealth

The failure of Korea’s Commercial Act amendment has once again raised concerns about the country's weak shareholder return practices. In response, major institutions are calling for stronger corporate governance and better returns for investors.

Difference Between Blue and Green Fields in Tableau

Difference Between Blue and Green Fields in Tableau

Many people assume that blue fields are dimensions and green fields are measures. While this assumption often holds true, it’s not technically accurate. In this post, we’ll break down what these colors actually mean and how understanding them can improve your visualizations.