Category Archives: Uncategorized

Introduction to PowerBI

By | August 17, 2020

The Covid 19 situation has been tough for pretty much everyone and a lot of careers have come to an abrupt stop. If you feel your career opportunities are hampered by the lack of a particular skill I would like to help by providing a 3 hour introductory course to PowerBI. Why PowerBI? It’s almost… Read More »

Opportunity =Money! = Worth

By | August 12, 2020

We have always had to measure the worth of things. Everybody has things they want and in order to get them they need to trade. With trade came the need to ensure you’re not being ripped off and so we standardized the rates. Initially this meant a fixed quantity of food or cattle gets exchanged.… Read More »

PowerBI DAX – VAR

By | June 16, 2020

A very useful way to work with DAX functions is to use VAR. VAR is a form of variable in which results can be stored temporarily without having to create measures and then using them in others. For example you use Var to store the result of a particular group and then use the var… Read More »

PowerBI DAX- USERNAME

By | June 16, 2020

This is a function that may not be used as frequently as it used to be but it is likely you will encounter it in older PowerBI Reports where RLS or row level security was implemented. The function returns the username of the user currently viewing the report. Using this information and mapping it against… Read More »

PowerBI DAX – USERELATIONSHIP

By | June 16, 2020

A common issue faced when working with PowerBI is the limitation of having only one Active relationship between two tables. While this is a not an issues when importing data it can make creating measures a hassle. An example of this scenario could be the use of calendar table for Order Date and Delivery Date.… Read More »

PowerBI DAX- TREATAS

By | June 16, 2020

Once we are able to create virtual tables within PowerBI using Functions such as EVALUATE , CALCULATE TABLE etc it might be required to filter the contents of the virtual table based on certain Input criteria. In such cases we can use the TREATAS function to apply filters to a Virtual or Actual Table as… Read More »

PowerBI DAX- TOTALYTD

By | June 16, 2020

A very useful kind of report is called a cumulative report. Which is based on summarizing data cumulatively. This means we can see the area chart as progressively growing as the year goes by. Charts such as these provide a clear indication of the long term trajectory of the sales and clearly indicates Sales for… Read More »

PowerBI DAX – TOPN

By | June 16, 2020

Another commonly used function is the TOPN function. It is used for both TOP and BOTTOM use cases. In this example to demonstrate the basics we are first going to simply fetch the top 34employees by their employee key. The below Formula shows what this would look like Table = TOPN(4,ALL(‘Dimension Employee’),’Dimension Employee'[Employee Key],ASC) To… Read More »

PowerBI DAX – SWITCH

By | June 16, 2020

Switch is a DAX function that is used frequently to create custom groups and classifications. In this example we use Switch to create a column called approval where we code different types of approval for the total sum of Amount. You can use switch to replace multiple values with another value instead of using IF… Read More »