Pull Values from Many Side of One to Many Relationship into One Side Column

[chris-thompson]

Hi there.  I have two tables that have a one to many relationship connected by a unique ID present in both tables.  I want to pull the unique value(s) of a separate column in the Many side table into the One side table that corresponds to the Unique ID (there should only be one unique value per ID but no database is perfect so there may be multiple).  In applied terms, the One side table has an unduplicated list of all individuals in the system, and the Many side table has all of the claims for each of the users (connected via Unique ID#).  I want to pull the associated Name of the person tied to the Unique ID# from the Claims table (Many table) and have it be a column in the unique individual list table (One table).  More or less, I want to run a calculation to identify all name mismatches between the two tables anchoring on the unique inidividual table. 

[Anonymous]

If I've understood you correctly, I was able to pull the values using a measure like:

vals = MINX('many_table', RELATED('one_table'[name]))

[johnt75]

You could extend Syk's answer to avoid having to create the column itself and simply create a column on the many table which flags if the two names don't match, e.g.

Name mismatch = 'Many table'[Name] <> RELATED( 'One table'[Name] )

Any rows with TRUE in this column have a mismatched name.

[Syk]

You may want to do it the other way around, bring the name from the "One table" into the "Many table". You can do it with a calculated column in the "Many table". Something that looks like this, assuming you have the relationships set up already

One_table_name = related('One Table'[Name])