Date filters in Tableau - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to filter data for the year 2023.

Tableau

IF YEAR([Order Date]) = [1] THEN 'Include' ELSE 'Exclude' END

Drag options to blanks, or click blank then click option'

A2023

B2022

C2024

D2021

Attempts:

3 left

💡 Hint

Common Mistakes

Using the wrong year value.

Not using the YEAR function to extract the year.

The filter checks if the year of the Order Date is 2023 to include the data.

2fill in blank

medium

Complete the code to filter data for dates after January 1, 2023.

Tableau

IF [Order Date] > DATE('[1]') THEN 'Include' ELSE 'Exclude' END

Drag options to blanks, or click blank then click option'

A2022-01-01

B2022-12-31

C2023-01-02

D2023-01-01

Attempts:

3 left

💡 Hint

Common Mistakes

Using a date before January 1, 2023.

Using the wrong date format.

The filter includes dates strictly after January 1, 2023, so the date used is '2023-01-01'.

3fill in blank

hard

Fix the error in the code to filter data for the current month.

Tableau

IF DATETRUNC('month', [Order Date]) = DATETRUNC('month', [1]) THEN 'Include' ELSE 'Exclude' END

Drag options to blanks, or click blank then click option'

ATODAY()

BNOW()

CDATE()

DGETDATE()

Attempts:

3 left

💡 Hint

Common Mistakes

Using NOW() which includes time and may cause mismatch.

Using undefined functions like GETDATE() in Tableau.

TODAY() returns the current date without time, which works well with DATETRUNC for month comparison.

4fill in blank

hard

Fill both blanks to filter data between January 1, 2023 and December 31, 2023.

Tableau

IF [Order Date] >= DATE('[1]') AND [Order Date] <= DATE('[2]') THEN 'Include' ELSE 'Exclude' END

Drag options to blanks, or click blank then click option'

A2023-01-01

B2023-12-31

C2022-12-31

D2024-01-01

Attempts:

3 left

💡 Hint

Common Mistakes

Using dates outside the 2023 year range.

Swapping start and end dates.

The filter includes dates from January 1, 2023 to December 31, 2023 inclusive.

5fill in blank

hard

Fill all three blanks to filter data for the last 7 days including today.

Tableau

IF [Order Date] >= DATEADD('day', -[1], [2]) AND [Order Date] <= [3] THEN 'Include' ELSE 'Exclude' END

Drag options to blanks, or click blank then click option'

A7

BTODAY()

D30

Attempts:

3 left

💡 Hint

Common Mistakes

Using 30 days instead of 7.

Using NOW() instead of TODAY() causing time issues.

The filter uses DATEADD to go back 7 days from today and includes dates up to today.

Practice

1. What is the main purpose of using Date filters in Tableau dashboards?

easy

A. To create new date columns

B. To change the color of date fields

C. To focus analysis on specific time periods

D. To sort data alphabetically

Solution

1. Step 1: Understand what date filters do

   Date filters allow you to limit data shown based on dates, focusing on certain time frames.

2. Step 2: Identify the correct purpose

   Among the options, only focusing analysis on specific time periods matches the use of date filters.

3. Final Answer:

   To focus analysis on specific time periods -> Option C

4. Quick Check:

   Date filters = focus on time periods [OK]

Hint: Date filters narrow data by time to focus analysis [OK]

Common Mistakes:

• Confusing filters with formatting options
• Thinking filters create new data columns
• Assuming filters sort data alphabetically

2. Which of the following is the correct way to add a relative date filter in Tableau?

easy

A. Right-click date field > Filter > Select 'Relative Date'

B. Drag date field to Columns shelf only

C. Create a calculated field with TODAY()

D. Use Data Source tab to filter dates

Solution

1. Step 1: Recall how to add relative date filters

   In Tableau, you right-click the date field, choose Filter, then select 'Relative Date' to add this filter type.

2. Step 2: Check other options

   Dragging to Columns shelf or creating calculated fields does not add a relative date filter directly. Data Source tab filters are different.

3. Final Answer:

   Right-click date field > Filter > Select 'Relative Date' -> Option A

4. Quick Check:

   Relative date filter = right-click > Filter > Relative Date [OK]

Hint: Right-click date field to add relative date filter quickly [OK]

Common Mistakes:

• Dragging date to Columns shelf does not filter
• Using calculated fields instead of filter dialog
• Trying to filter dates in Data Source tab only

3. Given a relative date filter set to 'Last 3 months' on a dashboard viewed on June 15, 2024, which months' data will be shown?

medium

A. March, April, May 2024

B. April, May, June 2024

C. February, March, April 2024

D. May, June, July 2024

Solution

1. Step 1: Understand 'Last 3 months' relative filter

   This filter includes the current month and the two previous months.

2. Step 2: Identify months for June 15, 2024

   Current month is June 2024, so last 3 months are April, May, and June 2024.

3. Final Answer:

   April, May, June 2024 -> Option B

4. Quick Check:

   Last 3 months includes current month [OK]

Hint: Relative filters include current month plus previous months [OK]

Common Mistakes:

• Excluding current month from last 3 months
• Counting future months incorrectly
• Confusing calendar months with weeks

4. You applied a relative date filter for 'Last 7 days' but the dashboard shows no data. What is the most likely cause?

medium

A. Date field is not recognized as a date type

B. Dashboard is not refreshed

C. Filter was applied on a non-date field

D. Data source has no records in the last 7 days

Solution

1. Step 1: Check filter logic

   If the filter is set correctly but no data shows, it likely means no data exists in that date range.

2. Step 2: Evaluate other options

   Incorrect data type or wrong field would cause errors, not empty results. Dashboard refresh issues usually show old data, not empty.

3. Final Answer:

   Data source has no records in the last 7 days -> Option D

4. Quick Check:

   No data in filter range = empty dashboard [OK]

Hint: Check data availability before blaming filter setup [OK]

Common Mistakes:

• Assuming filter syntax error causes empty data
• Not verifying data freshness
• Confusing data type errors with empty results

5. You want a dashboard that always shows sales data for the current quarter and updates automatically each day. Which filter type should you use in Tableau?

hard

A. Relative date filter set to 'This quarter'

B. Range date filter with fixed start and end dates

C. Individual date filter selecting specific dates

D. Top N filter on sales amount

Solution

1. Step 1: Identify filter that updates automatically

   Relative date filters update dynamically based on current date, perfect for current quarter data.

2. Step 2: Compare with other filter types

   Range filters with fixed dates do not update automatically. Individual date filters are static. Top N filters are unrelated to dates.

3. Final Answer:

   Relative date filter set to 'This quarter' -> Option A

4. Quick Check:

   Dynamic quarter data = relative date filter [OK]

Hint: Use relative date filters for auto-updating time frames [OK]

Common Mistakes:

• Using fixed range filters expecting auto-update
• Selecting individual dates manually
• Confusing sales amount filters with date filters