Bill Pearson


Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 17: Time Intelligence Functions: The DAX DATEADD() Function

Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces the DAX DATEADD() function, discussing its syntax, uses and operation. He then provides hands-on exposure to DATEADD(), focusing largely upon a popular use in creating prior-period values at multiple Date hierarchy levels.

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2026-04-15 (first published: )

2,730 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 18: Time Intelligence Dates Functions

Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces five DAX Time Intelligence functions related to Dates: DATESBETWEEN(), DATESINPERIOD(), DATESMTD(), DATESQTD(), and DATESYTD(). He discusses the syntax, uses and operation of each, and then provides hands-on exposure to the functions in Power BI.

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2026-04-15 (first published: )

2,254 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 2: The DAX COUNTROWS() and FILTER() Functions

Bill Pearson, business intelligence architect and author, exposes the DAX COUNTROWS() and FILTER() functions, while generally exploring, comparing and contrasting the nature and operation of calculated columns and calculated measures, in the second Level of our Stairway to PowerPivot and DAX series.

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2026-04-15 (first published: )

23,789 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 20: Time Intelligence – Date Functions: ENDOFMONTH(), ENDOFQUARTER(), ENDOFYEAR()

Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces three DAX Time Intelligence functions related to the End of Periods: ENDOFMONTH(), ENDOFQUARTER(), and ENDOFYEAR(). He discusses the syntax, uses and operation of each, and then provides hands-on exposure to the function in Power BI.

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2026-04-15 (first published: )

1,219 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 21: Time Intelligence – Dates Functions: FIRSTDATE() and LASTDATE()

Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces two DAX Time Intelligence functions related to the Date: FIRSTDATE(), and LASTDATE(). He discusses the syntax, uses and operation of each function, and then provides hands-on exposure to it in Power BI.

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2026-04-15 (first published: )

5,147 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 22: Time Intelligence – Dates Functions: The DAX NEXT() Functions

Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces four very similar DAX Time Intelligence functions related to Date: NEXTDAY(), NEXTMONTH(). NEXTQUARTER() and NEXTYEAR(). He discusses the syntax, uses and operation of each function, and then provides hands-on exposure to it in Power BI.

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2026-04-15 (first published: )

1,297 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 23: Time Intelligence – Dates Functions: The DAX PREVIOUS() Functions

Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces four very similar DAX Time Intelligence functions related to Date: PREVIOUSDAY(), PREVIOUSMONTH(). PREVIOUSQUARTER() and PREVIOUSYEAR(). He discusses the syntax, uses and operation of each function, and then provides hands-on exposure to it in Power BI.

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2026-04-15 (first published: )

1,148 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 3: The DAX DISTINCT() Function and Basic Distinct Counts

Bill Pearson, Business Intelligence architect and author, exposes the DAX DISTINCT() function, and then provides some hands-on exposure to its use in generating distinct counts. Moreover, he further explores working with measures in the PivotTable in this, the third Level of our new Stairway to PowerPivot and DAX series.

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2026-04-15 (first published: )

11,526 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI - Level 5: The DAX ISBLANK() Function

Business Intelligence architect, Analysis Services Maestro, and author Bill Pearson exposes the DAX ISBLANK() function, and then provides some hands-on exposure to its use, particularly in combination with other DAX functions, in managing empty values underlying our PowerPivot model designs.

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2026-04-15 (first published: )

8,302 reads

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