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Stairway to DAX and Power BI
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stairway series    

Data Analysis Expressions (DAX) can be used in formulas or expressions to calculate and return information from data already in our Power BI models. This Stairway series serves as a progressive introduction to DAX within the context of Power BI, examining the functions, operators and values involved, and examining their operation in practice examples. As a part of introducing DAX functions and overall capabilities, the Levels of the series will also offer a wealth of practical exposure to Power BI features as a part of putting DAX to work in our data models and visualizations.

Stairway to DAX and Power BI - Level 1: Getting Started with PowerPivot and DAX

Learning DAX is easy once you install the PowerPivot for Excel 2010 add-in and get practical exposure to using functions, operators and values in DAX formulas. Bill Pearson, business intelligence architect and author, kicks off another Stairway series designed to get you using DAX and PowerPivot quickly to provide actionable business intelligence in your own environment.  Read more...
By Bill Pearson 2014/05/07 (first published: 2011/12/21) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 25,209 reads

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.  Read more...
By Bill Pearson 2013/09/11 (first published: 2012/12/07) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 10,934 reads

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.  Read more...
By Bill Pearson 2013/10/09 (first published: 2013/02/26) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 8,504 reads

Stairway to DAX and Power BI - Level 4: The DAX BLANK() Function

Business Intelligence architect and author Bill Pearson exposes the DAX BLANK() function, and then provides some hands-on exposure to its use in managing empty values underlying our PowerPivot model designs.  Read more...
By Bill Pearson 2013/11/06 (first published: 2013/03/18) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 7,212 reads

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.  Read more...
By Bill Pearson 2013/12/04 (first published: 2013/05/09) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 5,718 reads

Stairway to DAX and Power BI - Level 6: The DAX SUM() and SUMX() Functions

Business Intelligence architect, Analysis Services Maestro, and author Bill Pearson exposes the DAX SUM() and SUMX() functions, comparing and contrasting the two. He then provides some hands-on exposure to the use of each, particularly in combination with other DAX functions, in managing “sum” aggregations within our PowerPivot model designs.  Read more...
By Bill Pearson 2014/12/24 (first published: 2014/08/27) | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 5,056 reads

Stairway to DAX and Power BI - Level 7: Function / Iterator Function Pairs: The DAX AVERAGE() and AVERAGEX() Functions

Business Intelligence architect, Analysis Services Maestro, and author Bill Pearson explores the DAX AVERAGE() and AVERAGEX() functions, comparing and contrasting the two. He then provides some hands-on exposure to the use of each, particularly in combination with other DAX functions, in generating arithmetic means within our PowerPivot model designs.  Read more...
By Bill Pearson 2014/09/17 | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 2,467 reads

Stairway to DAX and Power BI - Level 8: Function / Iterator Function Pairs: The DAX COUNT() and COUNTX() Functions

As a part of his “Function / Iterator Pairs” mini-series, Business Intelligence architect, Analysis Services Maestro, and author Bill Pearson introduces the DAX COUNT() and COUNTX() functions, discussing similarities and differences. He then provides some hands-on exposure to the use of each, particularly in combination with other DAX functions, in generating counts to meet differing needs within our PowerPivot model designs.  Read more...
By Bill Pearson 2015/01/07 | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 2,283 reads

Stairway to DAX and Power BI - Level 9: Function / Iterator Function Pairs: The DAX MAX() and MAXX() Functions

As a part of his "Function / Iterator Pairs" mini-series, Business Intelligence architect, Analysis Services Maestro, SQL Server MVP, and author Bill Pearson introduces the DAX MAX() and MAXX() functions, discussing similarities and differences. He then provides some hands-on exposure to the use of each, particularly in combination with other DAX functions, in generating "largest numeric values" to meet differing needs within our PowerPivot model designs.  Read more...
By Bill Pearson 2015/01/14 | Source: SQLServerCentral.com | Category: stairway series
Rating: |  Discuss |   Briefcase | 2,401 reads

Stairway to DAX and Power BI - Level 10: Function / Iterator Function Pairs: The DAX Product() and ProductX() Functions

As a part of his “Function / Iterator Pairs” mini-series, Business Intelligence architect, Analysis Services Maestro, and author Bill Pearson introduces the DAX Product()and ProductX() functions, discussing the syntax, uses and operation of each. He then provides hands-on exposure to Product()and ProductX(), respectively, in returning the product of numbers in a column and in returning the product of an expression evaluated for each row in a table.  Read more...
By Bill Pearson 2016/03/16 | Source: SQLServerCentral.com | Category: dax
Rating: (not yet rated) |  Discuss |   Briefcase | 24 reads
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