Get certified for free when you join Fabric Data Days 2026 and dive into Fabric, Power BI, SQL, AI, and other essential data skills.
Join nowJuly 7 - July 17 | Round 2 of the Power BI Dataviz World Championships. Don't miss your chance! Learn more
Hi All,
Firstly I have tried a number of suggested solutions to working it out but none are quiet getting me there.
I would like to present to the end user a % of data completeness score. I have 38 columns of data with a fair few nulls spread throughout the data set.....sample of what I am dealing with if I was not clear
| Vendor | Address | Contact Number | First Name | Surname |
| Vendor ABC | 100 Street name | 0568 870 734 | Tom | null |
| Vendor DEF | 78 Street name | null | Sandra | Jones |
The completeness score will be presented in a matrix so it is a per row basis.....any suggestions?
Hi @Anonymous ,
You want to count the number of rows with nulls and then get the percentage of the total that are nulls, right?
You could use the COUNT() function or COUNTROWS() to get the number of rows.
For example,
CALCULATE(COUNT([Contact Number]), FILTER(ALL('TABLE'), [Contact Number]=BLANK()))
Here you need to determine whether your null is a text type or a null value. If they are null values, =BLANK(), if they are text, ="null".
Best Regards,
Stephen Tao
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
I have tried adding columns and calculating the nulls and "" from each row including newly added colums. Currently dealing with a small sample dataset of 10k....looking to expand to 100k's
Join us in Barcelona for FabCon and SQLCon, the Fabric, Power BI, SQL, and AI community event. Save €200 with code FABCMTY200.
Join Data Days 2026: 60 days of free live/on-demand sessions, challenges, study groups, and certification opportunities.
| User | Count |
|---|---|
| 27 | |
| 23 | |
| 18 | |
| 18 | |
| 15 |
| User | Count |
|---|---|
| 54 | |
| 44 | |
| 42 | |
| 39 | |
| 36 |