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I am currently using PBIX with hosted SQL server as datasource. I am moving to Azure and I have a copy of database migrated to Azure.
Now when I change the data source setting from hosted SQL server to Azure and refresh/apply changes my visuals break and the cause of issue is relationship being dropped between dim table and fact table.
The table structure (table name, column names) is the same as its migrated from hosted server to Azure server.
Any one knows what's wrong?
That's unfortunately very common. If Power BI thinks that the meta data has changed too much (which is clearly the case in your scenario) it will treat your data source change as a complete data source replacement, including severing all connections.
- Make backups before you attempt this
- use views and/or query references to shield Power BI from the upstream source changes
- make small incremental meta data changes if possible
- make absolutely 100% sure that the Power Query result of the new source exactly totally unconditionally matches the prior output format
Or - start over and recreate with the new source. This might be faster.