Forum Discussion
OLE DB or ODBC error: type mismatch (exception from HRESULT: 0x80020005 (DISP_E_TYPEMISMATCH))
I'm seeing exactly the same error. Report was running fine? Using Power BI desktop and source is a SQL server database.
Sorry to hear that. You could open a ticket, but here are a few suggestions.
Run the refresh in PowerBI.com - it will fail, but the error reporting is better (? why ? I don't know) - so if you look at the dataset in the "schedule refresh" area, you will see the failure notification - if you expand that, it may identify the column that is causing the problem. Then you step through your query (and rebuild it if necessary).
If that error does not show, go to PowerBI desktop and get into the data view - then look at the fields list and start by inspecting any columns that are flagged, then look for items that are have date format. Hypotheis is that a new value showed up in your data that caused PowerBI to "change it's mind" about the TYPE - moving from Text or Date Type to "any" or "text".
May need to rebuild those.
I do not think this was a matter of someone changing the format in the source - so the cause of the problem is not known - one day it was working, the next it was not - so I would not advise going down that path as a first step - unless you control everything and have easy access.
Good luck.
Just had the same error and solved it by duplicating my table in the Query Editor, deleting the original table and renaming the copy to the original's name.. Hope that helps
It just worked !!! Thank you :)
Hi, there,
This happened to me also. But i figured out that if i remove all the relations to the table it will be better to do changes on it.
When I removed the relations and edited the table (without duplicating it and etc.), all the changes were applied without any problems.
I think it is because you have some "strange" values in a column or columns that are in relation to others and from there it reffers to that TYPE MISMATCH.
It worked for me.
Have a nice day!
Pavlin
It worked, thank you very much...only problem is that I lost all the measures I inserted in that table :(
Now I'm copying the formulas from my older .pbix, but this is really problematic, I hope this gets fixed soon by PBI Team, considering that in June 2018 is still happening.Thank you again chabib :)
It worked thank you very much!
Too bad I had to copy all my old measures again and change the origin of the dependant queries, but it helped a lot :)
A date field was giving me probs, it loaded from SQL as text, so I changed it to Decimal number and then then tried to create a Date field, But I still got that message, so I left it as a Decimal number and created four seperate columns, Year, Month, Day and then concateated them together and the query reloads without the error. Hope that helps someone.
your suggestion to run the refresh in PowerBI.com was very helpful to me. Thanks also for the detailed description where to find the error description in the power BI service. Turned out for me that a whole different column threw me out than I wuold have expected and was trying to change. Thanks a lot
@Syndicate_Admin
