Sorting data in Power BI - Dashboard Guide

Dashboard Mode - Sorting data

Goal

Find out which products sold the most and see them sorted from highest to lowest sales.

Sample Data

Product	Sales	Category
Notebook	150	Stationery
Pen	300	Stationery
Desk Lamp	120	Electronics
Chair	200	Furniture
Monitor	250	Electronics
Stapler	100	Stationery

Dashboard Components

• KPI Card: Total Sales calculated as Total Sales = SUM(SalesData[Sales]). Result: 1120
• Bar Chart: Sales by Product sorted descending by Sales. The chart shows products on the vertical axis and sales on the horizontal axis, sorted from highest to lowest sales.
• Table: Product Sales Table showing Product, Category, and Sales columns sorted descending by Sales using Power BI's sort feature on the Sales column.

Dashboard Layout

+----------------------+----------------------+
|      Total Sales      |   Sales by Product    |
|       (KPI Card)      |      (Bar Chart)      |
+----------------------+----------------------+
|               Product Sales Table              |
+-----------------------------------------------+

Interactivity

Clicking on a product bar in the Sales by Product chart highlights that product in the Product Sales Table. Sorting the table by Sales updates the order immediately. The Total Sales KPI remains the same as it sums all sales.

Self Check

If you add a filter to show only the Stationery category, which components update?

• The Total Sales KPI updates to sum only Stationery sales (150 + 300 + 100 = 550).
• The Sales by Product bar chart updates to show only Stationery products sorted by sales.
• The Product Sales Table updates to show only Stationery products sorted by sales.

Key Result

Dashboard showing total sales and products sorted by sales descending.

Practice

1. What is the main purpose of sorting data in Power BI reports?

easy

A. To create new columns in the dataset

B. To delete unnecessary data from the report

C. To change data values automatically

D. To organize data so reports are clearer and easier to read

Solution

1. Step 1: Understand sorting purpose

   Sorting arranges data in a specific order to improve readability and clarity.

2. Step 2: Identify correct purpose in options

   Only To organize data so reports are clearer and easier to read describes organizing data to make reports clearer and easier to read.

3. Final Answer:

   To organize data so reports are clearer and easier to read -> Option D

4. Quick Check:

   Sorting = Organizing data for clarity [OK]

Hint: Sorting arranges data to improve report clarity [OK]

Common Mistakes:

• Confusing sorting with deleting data
• Thinking sorting changes data values
• Believing sorting creates new columns

2. Which of the following is the correct way to sort a column by another column in Power BI?

easy

A. Select the column, then use 'Sort by Column' and choose the other column

B. Right-click the column and select 'Delete Column'

C. Drag the column to the report canvas

D. Use 'Sort Ascending' on the other column only

Solution

1. Step 1: Recall sorting by another column method

   In Power BI, to sort a column by another, you select the column and use 'Sort by Column' feature.

2. Step 2: Match method to options

   Select the column, then use 'Sort by Column' and choose the other column correctly describes this process; other options do unrelated actions.

3. Final Answer:

   Select the column, then use 'Sort by Column' and choose the other column -> Option A

4. Quick Check:

   Sort by Column feature = Select the column, then use 'Sort by Column' and choose the other column [OK]

Hint: Use 'Sort by Column' to order one column by another [OK]

Common Mistakes:

• Trying to delete columns instead of sorting
• Dragging columns to canvas does not sort
• Using 'Sort Ascending' alone won't sort by another column

3. Given a table with columns MonthName and MonthNumber, which sorting will display months in calendar order in a visual?

medium

A. Sort MonthName by MonthNumber

B. Sort MonthNumber by MonthName

C. Sort MonthName alphabetically

D. Sort MonthNumber descending

Solution

1. Step 1: Understand sorting for calendar order

   Months should be shown in calendar order, which is numeric order of MonthNumber.

2. Step 2: Choose sorting method

   Sorting MonthName by MonthNumber arranges month names in calendar order.

3. Final Answer:

   Sort MonthName by MonthNumber -> Option A

4. Quick Check:

   MonthName sorted by MonthNumber = calendar order [OK]

Hint: Sort names by numbers for correct calendar order [OK]

Common Mistakes:

• Sorting MonthNumber by MonthName causes wrong order
• Alphabetical sort of MonthName is incorrect calendar order
• Descending MonthNumber reverses calendar order

4. You tried to sort a 'Product Category' column by 'Category ID' but the visual still shows alphabetical order. What is the likely issue?

medium

A. The data model is missing a relationship

B. The 'Category ID' column has duplicate values

C. You did not select the 'Product Category' column before applying 'Sort by Column'

D. You sorted the 'Category ID' column instead of 'Product Category'

Solution

1. Step 1: Understand sorting by column requirement

   To sort one column by another, you must select the column to sort first.

2. Step 2: Identify common mistake

   If the visual still shows alphabetical order, likely the 'Product Category' column was not selected before sorting.

3. Final Answer:

   You did not select the 'Product Category' column before applying 'Sort by Column' -> Option C

4. Quick Check:

   Select column first to sort by another [OK]

Hint: Always select the column to sort before choosing 'Sort by Column' [OK]

Common Mistakes:

• Sorting wrong column by mistake
• Ignoring duplicate values in sort column
• Assuming relationships affect sorting here

5. You have a sales table with a 'Region' column and a separate 'Region Sort Order' table. How do you ensure a bar chart sorts regions by the custom order defined in 'Region Sort Order'?

hard

A. Sort the 'Region Sort Order' column alphabetically

B. Create a relationship between tables and sort 'Region' column by 'Region Sort Order' column

C. Sort the bar chart manually by dragging bars

D. Use a slicer to filter regions in desired order

Solution

1. Step 1: Understand sorting with related tables

   To sort by a custom order in another table, a relationship must exist between the tables.

2. Step 2: Apply sorting by related column

   Sort the 'Region' column by the 'Region Sort Order' column from the related table to enforce custom order in visuals.

3. Final Answer:

   Create a relationship between tables and sort 'Region' column by 'Region Sort Order' column -> Option B

4. Quick Check:

   Relationship + sort by related column = custom order [OK]

Hint: Link tables and sort main column by related order column [OK]

Common Mistakes:

• Sorting order column alphabetically loses custom order
• Trying to drag bars does not persist sorting
• Using slicers does not change sort order