SQL tables append problem

[Jarek_Warsaw]

Hello,

I'm trying to combine data from the accounting system for different companies. I retrieve the data through SQL Server from identical tables located in different databases, add one column to specify the company, and attempt to 'append' to proceed with further processing. Unfortunately, nothing happens; the resulting table is not displayed, and the system keeps working continuously (moving dots across the top bar). When a new or changed table appears, a yellow exclamation mark appears, but I cannot see what the error is. There is also no dialog box appearing. I tried changing access settings (None, Public, Organizational), but it didn't change anything. I also tried different Data Connectivity modes (Import and DirectQueries), also without success. I would appreciate any hints on what might be causing this behavior.

Thanks a lot for help.

[Jarek_Warsaw]

Thanks, but I'm not sure how to Union tables. Is it a different method than 'Append' from QueryEditor (Home menu, Combine)? How can I access it?

Just to add, tables are loaded into Power BI, have size max 20k x 35 columns, each. Source databases are on the same server on local machine.

[lbendlin · Accepted solution]

UNION is a DAX function. You do that in Power BI, not in Power Query.

[lbendlin]

 from identical tables located in different databases ... and attempt to 'append' to proceed with further processing

The formula firewall monster will not be happy about that.

Load the tables as is and do the UNION in Power BI instead.