Forum Discussion
Not being able to merge two tables in Power Query
Hey All,
I am new to Power BI and struggling with merging queries.
Could someone please tell me why I am getting warning sign against so many tables while I am trying to merge "Dim_Date" with some other table using "Merge Queries". I am trying to merge "Dim_Date" with "Dates_Cross_Join" but not being able to do so due to the warning sign and "No Preview is available". Image attached for reference.
But when I try with "Merge queries as New", it works fine.
Your help would be greatly appreciated.
Thanks in advance!
Anonymous Perhaps there is some sort of dependency between those two queries? Does one refer to the other?
- Anonymous I would say 100% that is the issue and why it works if you merge new, because with merge new it will load the queries in the right order , load Dim_Date and then Shipment and then Dates_Cross_Join and then the new merge query. Otherwise, you have effectively created a circular reference and it is not going to like that.
4 Replies
Anonymous Perhaps there is some sort of dependency between those two queries? Does one refer to the other?
Greg_Deckler Hey.. "Dates_Cross_Join" is a reference of "Shipment" table and "Shipment" table is a merge of "Dim_Date" and another table.
Could this be a reason behind the problem?
- Anonymous I would say 100% that is the issue and why it works if you merge new, because with merge new it will load the queries in the right order , load Dim_Date and then Shipment and then Dates_Cross_Join and then the new merge query. Otherwise, you have effectively created a circular reference and it is not going to like that.
As others commented below, maybe there's a dependency between those two queries. You can turn this around using DAX OR...
You can right click on Dim_Date and press "Reference". It will create another query called "Dim_Date (2)" and you com merge it with "Dates_Cross_Join". Doing this, you have to start working on "Dim_Date (2)" besides "Dim_Date".
The difference between 'duplicate' and 'reference': Solved: Difference between Reference and Duplicate - Microsoft Power BI Community