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DataGuy2016's avatar
DataGuy2016
Advocate IV
9 years ago
Solved

Table Merge creates duplicate records

Hi Folks,   I am stumped.   I am trying to merge two tables into a new table using a LEFT JOIN.  Both tables have unique records on each row.  When I join the tables, BI creates duplicate rows on...
Need Help
  • DataGuy2016's avatar
    DataGuy2016
    9 years ago

    The problem lay with the Data.

     

    The LEFT JOIN functionality of PowerBI works perfectly.

J_R_Cribb's avatar
J_R_Cribb
Helper I
8 years ago

Hi DataGuy2016, 

 

If you haven't already found a solution...

 

I had a similar issue where LEFT JOIN was creating duplicates, resulting over 1000 rows of data where I should have just 85.

 

I solved the issue by expanding the relative columns as an aggregate, instead of just an expansion.

 

Hope that this makes sense.

 

 

 

 

 

Anonymous's avatar
Anonymous
Not applicable
8 years ago

I am having the same problem with my data.  And no, I do not understand your answer to "expand as an aggregate," will you please clarify?

 

I know this is an old thread, but if someone else is still reading this thread and would like to offer help, I appreciate it!