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 nowData Days is here! Join us now for 60+ days of learning, challenges, and connection. Learn more
I'm trying to append two queries together. One is from a csv file while the other from an xls worksheet. The data comes up fine in the query editor but when I try to Close & Apple, I get the following error:
Geography
Column 'Column1' in Table 'Geography' contains a duplicate value 'ACSSF' and this is not allowed for columns on the one side of a many-to-one relationship or for columns that are used as the primary key of a table.
The column above just contains data. I haven't defined any relationships or created any models. I'm just trying to append the rows from one query to another.
Solved! Go to Solution.
Hi @Adam_123
from simple data models relationships are defined automatically.
So, first remove relationships in report mode then do you appen workaround in Query Editor
Don't miss out on Data Days, June 15 through August 7. Learn Fabric, Power BI, SQL, AI and more.
Check out the May 2026 Power BI update to learn about new features.
| User | Count |
|---|---|
| 22 | |
| 21 | |
| 20 | |
| 17 | |
| 13 |
| User | Count |
|---|---|
| 58 | |
| 50 | |
| 37 | |
| 29 | |
| 24 |