Hi , I’ve two big datasets and both don’t have a unique_id to join/merge, Does any one have an idea how to join them? Data_1 is a summary file and Data_2 is a detail of the summary of the file. Here is an example of both datasets. Any help is appreciated? Data_1 is a summary file ID Group 00233 ABCD 00233 ABCD 02013 Oxy 02013 Oxy 02013 Oxy Data_2 is a detail of the summary of the file I Group 0233 ABCD 0233 ABCD 0233 ABCD 0233 ABCD 0233 ABCD 0233 ABCD 0233 ABCD PSM2013 Oxy Inc PSM2013 Oxy Inc PSM2013 Oxy Inc PSM2013 Oxy Inc PSM2013 Oxy Inc ... View more