When you work with tables and queries in Power Query and Power BI, you get the option to copy them through these actions: Duplicate, or Reference. It has been always a question in my sessions and courses that what is the actual difference between these two actions. The explanation is simple but very important to Read more about Reference vs Duplicate in Power BI; Power Query Back to Basics[…]
There are many time intelligence functions in DAX, and each of those is helping in aspects of analyzing data on dates. There are two functions which work very similar to each other but have a bit different usage; DatesInPeriod, and DatesBetween. In this post, I will show you what is the difference between these two Read more about DatesInPeriod vs DatesBetween; DAX Time Intelligence for Power BI[…]
One of the most common requirements in any reporting solution is the ability to drill through from master page to the details page and see the details of an item or category. In this post, I will explain how this feature is simply possible in Power BI, and what are things to consider when you Read more about Master Detail Design with Drillthrough Filter in Power BI[…]
Finding rows that are in one table, but not the other is one of the most common scenarios happening in any data related applications. You may have customer records coming from two sources, and want to find data rows that exist in one, but not the other. In Power Query, you can use Merge to Read more about Find Mismatch Rows with Power Query in Power BI[…]
I work with Power Query transformations every day these days, and I want to share one simple, but critical caution with you. If you use Power Query a lot, this tip can improve the performance of your transformation significantly. The number of steps that you add in a query counts in the performance of your Read more about Watch Your Steps! Power Query Performance Caution for Power BI[…]
The most recent feature added in the Power BI service is a great update, which should not be overlooked. You can now share reports and pass the selection of filters and slicers. This ability, which is announced yesterday, open doors to many possibilities. You can now create “report views” for different personas of users. Previously Read more about Sharing Power BI Reports with Selection of Slicers and Filters; What it Means?[…]
Relationships in Power BI are a bit different from other database management systems. In most of the systems, you just have a relationship and there is no “Direction” for it. In Power BI, however, there is a direction for the relationship. The direction of a relationship plays a critical role in the way that filtering Read more about What is the Direction of Relationship in Power BI?[…]
Sometimes for tables with too many columns, and also for databases with too many tables, you do need a bit of help to explore the data. As an example; you know that you are looking for a column named “account status”, but the column does not exists in the accounts table. You need to search Read more about Search for a Column in the Entire Database with Table.ColumnNames in Power Query and Power BI[…]
Parent-child functions in DAX are very useful for parsing an organizational hierarchy or something like a chart of accounts. Usually, for hierarchies that the number of levels is not determined, you need to use a different method, and parent-child functions in DAX are a big help for that type of hierarchies. In this post, you Read more about Parsing Organizational Hierarchy or Chart of Accounts in Power BI with Parent-child Functions in DAX[…]
There are a number of pre defined DAX time intelligence calculations that help you to get analytics over time, such as year to date, same period last year, and etc. However, there is no calculation for Week to Date built-in. I have found it quite a demand for some of businesses, as many of businesses Read more about Week to Date Calculation in Power BI with DAX[…]