Table and matrix visuals in Power BI - Step-by-Step Guide

Introduction

Table and matrix visuals help you show data in rows and columns. They make it easy to compare numbers and see details. Use them when you want a clear, organized view of your data.

When you want to list sales data by product and region in a simple grid.

When you need to show totals and subtotals for categories and subcategories.

When you want to let users drill down from yearly to monthly sales in the same visual.

When you want to display detailed customer information alongside summary numbers.

When you want to compare values side by side with easy sorting and filtering.

Steps

Step 1: Click

- Visualizations pane

The visualizations list expands showing all available visuals

Step 2: Select

- Table visual icon

A blank table visual appears on the report canvas

Step 3: Drag

- Fields pane

The selected field appears as a column in the table visual

💡 Start with one or two fields to keep the table clear

Step 4: Select

- Matrix visual icon in Visualizations pane

A blank matrix visual appears on the report canvas

Step 5: Drag

- Fields pane

Add fields to Rows, Columns, and Values areas in the matrix visual

💡 Use Rows for categories, Columns for subcategories, and Values for numbers

Step 6: Click

- Format pane

Formatting options appear to customize the look of the table or matrix

Step 7: Adjust

- Format pane options like gridlines, text size, and subtotals

The visual updates to reflect your formatting choices

Before vs After

Before

Report canvas is empty with no visuals

After

Table visual shows sales data with columns for Product and Sales Amount; Matrix visual shows sales by Region in rows and Year in columns with totals

Settings Reference

Values

📍 Fields pane under Table or Matrix visual

Shows the numbers or measures to summarize in the visual

Default: None

Rows

📍 Fields pane under Matrix visual

Defines the row groups or categories

Default: None

Columns

📍 Fields pane under Matrix visual

Defines the column groups or subcategories

Default: None

Subtotals

📍 Format pane > Subtotals

Shows or hides subtotal rows and columns

Default: On

Gridlines

📍 Format pane > Gridlines

Shows or hides lines between rows and columns

Default: On

Common Mistakes

Adding too many fields to the table or matrix at once

This makes the visual cluttered and hard to read

Start with key fields and add more gradually while checking readability

Using matrix without setting columns for subcategories

The matrix will look like a simple table and miss the benefit of cross-tab layout

Add fields to Columns area to create a multi-dimensional view

Turning off subtotals without checking if totals are needed

Users may lose important summary information

Only turn off subtotals if you want a detailed list without summaries

Summary

Table and matrix visuals organize data in rows and columns for easy comparison.

Matrix visuals allow grouping by rows and columns with subtotals and drill-down.

Keep visuals simple by adding fields gradually and using formatting options.

Practice

1. What is the main difference between a Table visual and a Matrix visual in Power BI?

easy

A. Tables can show images, matrices cannot.

B. Matrix visuals allow grouping and subtotals, tables do not.

C. Tables support drill-down, matrices do not.

D. Matrix visuals cannot display numeric data.

Solution

1. Step 1: Understand Table visual features

   Tables display data in simple rows and columns without grouping or subtotals.

2. Step 2: Understand Matrix visual features

   Matrices allow grouping by rows and columns and show subtotals for those groups.

3. Final Answer:

   Matrix visuals allow grouping and subtotals, tables do not. -> Option B

4. Quick Check:

   Grouping and subtotals = Matrix [OK]

Hint: Remember: Matrix = grouping + subtotals, Table = simple rows [OK]

Common Mistakes:

• Thinking tables support grouping and subtotals
• Confusing drill-down features between visuals
• Assuming matrices cannot show numbers

2. Which of the following is the correct way to add a field to the Rows area in a Matrix visual in Power BI?

easy

A. Drag the field into the Rows area.

B. Drag the field into the Filters area.

C. Drag the field into the Values area.

D. Drag the field into the Columns area.

Solution

1. Step 1: Identify the Rows area in Matrix visual

   The Rows area is where you place fields to group data vertically in a matrix.

2. Step 2: Correct placement of fields

   Dragging a field into the Rows area groups data by that field in rows.

3. Final Answer:

   Drag the field into the Rows area. -> Option A

4. Quick Check:

   Rows area = drag fields here for row grouping [OK]

Hint: Drag fields to Rows area for vertical grouping in matrix [OK]

Common Mistakes:

• Dragging fields to Values instead of Rows
• Confusing Columns and Rows areas
• Placing fields in Filters instead of Rows

3. Given a Matrix visual with Category in Rows and Year in Columns, what will be shown if you add Sales to Values?

medium

A. A list of all sales transactions without grouping.

B. Sales totals only by Category without Year breakdown.

C. Sales totals only by Year without Category grouping.

D. Sales totals grouped by Category and Year with subtotals.

Solution

1. Step 1: Understand Matrix grouping by Rows and Columns

   Category in Rows groups data vertically; Year in Columns groups data horizontally.

2. Step 2: Adding Sales to Values

   Sales values will be aggregated for each Category-Year combination, showing subtotals.

3. Final Answer:

   Sales totals grouped by Category and Year with subtotals. -> Option D

4. Quick Check:

   Matrix with Rows + Columns = grouped totals [OK]

Hint: Rows + Columns + Values = grouped totals with subtotals [OK]

Common Mistakes:

• Ignoring the column grouping by Year
• Expecting ungrouped transaction list
• Confusing subtotals with raw data

4. You created a Matrix visual but subtotals are not showing. What is the most likely reason?

medium

A. Subtotals are disabled in the Matrix visual settings.

B. You did not add any fields to the Values area.

C. The data source has no numeric columns.

D. Matrix visuals never show subtotals.

Solution

1. Step 1: Check Matrix visual subtotal settings

   Subtotals can be turned on or off in the Format pane under Subtotals.

2. Step 2: Confirm fields and data type

   Even with fields added, subtotals won't show if disabled in settings.

3. Final Answer:

   Subtotals are disabled in the Matrix visual settings. -> Option A

4. Quick Check:

   Subtotals off in settings = no subtotals shown [OK]

Hint: Check subtotal toggle in Format pane if subtotals missing [OK]

Common Mistakes:

• Assuming subtotals show automatically without enabling
• Thinking numeric data is required for subtotals
• Believing matrices never show subtotals

5. You want to create a report showing sales by Product Category and Region with subtotals for each. Which visual and setup is best?

hard

A. Use a Table visual with Product Category and Region in Values, Sales in Filters.

B. Use a Matrix visual with Sales in Rows, Product Category in Values, Region in Filters.

C. Use a Matrix visual with Product Category in Rows, Region in Columns, and Sales in Values.

D. Use a Table visual with Region in Rows and Sales in Columns.

Solution

1. Step 1: Identify need for grouping and subtotals

   Showing sales by Product Category and Region with subtotals requires grouping on both dimensions.

2. Step 2: Choose visual and field placement

   Matrix visual supports grouping by Rows and Columns and shows subtotals; place Product Category in Rows, Region in Columns, Sales in Values.

3. Final Answer:

   Use a Matrix visual with Product Category in Rows, Region in Columns, and Sales in Values. -> Option C

4. Quick Check:

   Matrix + Rows + Columns + Values = grouped subtotals [OK]

Hint: Matrix with Rows and Columns fields shows subtotals best [OK]

Common Mistakes:

• Using Table visual which lacks subtotals
• Placing Sales in Filters or wrong areas
• Confusing Rows and Values placement