DAX

Technical Article

Level 28: DAX Text Functions: The DAX Extract & Modify Functions: LEFT(), RIGHT(), MID(), REPLACE(), SUBSTITUTE()

  • Stairway Step

Business Intelligence Architect, Data Analyst, CPA, and author Bill Pearson introduces a subseries surrounding the DAX Text Functions, including LEFT(), RIGHT(), MID(), REPLACE(), and SUBSTITUTE() and breaks out the operational groups of functions involved. Next, he introduces the “Extract and Modify” group of text functions as the focus of this Level. Finally, he identifies and examines each functional member of the “Extract and Modify

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2026-02-04

1,630 reads

External Article

INFO.VIEW DAX Functions Usage and Examples

  • Article

In the December 2023 Microsoft Power BI Desktop release, more than 50 new INFO DAX functions were added. They all start with “INFO.” and return the same result as corresponding data management views (DMVs) that were available before only using a SQL-like syntax. With these new DAX functions, you can use the recently added DAX query to get metadata about your semantic mode

2025-03-10

Stairway to DAX and Power BI

Level 27: Time Intelligence – Dates Functions: The DAX “Parallel Period” and “Same Period Last Year” Functions

  • Stairway Step

Business Intelligence Architect, “Analysis Services Maestro, and author Bill Pearson introduces two somewhat similar DAX Time Intelligence functions related to “parallel” Date periods: PARALLELPERIOD() and SAMEPERIODLASTYEAR(). 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: )

1,934 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI Level 26: Time Intelligence – Dates Functions: The DAX “Total to Date” Functions

  • Stairway Step

Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces three similar DAX Time Intelligence functions related to Date: TOTALMTD(), TOTALQTD(), and TOTALMYD(). 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: )

999 reads

Stairway to DAX and Power BI

Stairway to DAX and Power BI Level 25: Time Intelligence – Dates Functions: The DAX CLOSINGBALANCE*() Functions

  • Stairway Step

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

(1)

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2026-04-15 (first published: )

903 reads

Stairway to DAX and Power BI

Level 24: Time Intelligence – Dates Functions: The DAX OPENINGBALANCE*() Functions

  • Stairway Step

Business Intelligence Architect, Analysis Services Maestro, and author Bill Pearson introduces three similar DAX Time Intelligence functions related to Date: OPENINGBALANCEMONTH(), OPENINGBALANCEQUARTER(). and OPENINGBALANCEYEAR(). 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: )

1,556 reads

Stairway to DAX and Power BI

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

  • Stairway Step

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.

(2)

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2026-04-15 (first published: )

1,152 reads

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RegEx Functions I

Which of these RegEx functions need compatibility level 170 in SQL Server 2025?

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