ERROR
Join cannot be based on a 1-many relationship class
Error Message
Joining data to a table or layer through a relationship class returns:
"Join cannot be based on a 1-many relationship class"
Cause
You cannot create a join based on a one-to-many (1-M) relationship class from the one side.
Solution or Workaround
Create the join from the many side or, if the data is one-to-one (1-1), create a one-to-one relationship class.
Article ID:000003693
Software:
- ArcMap 8 x
- ArcMap 9 x
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