I am looking to import a CSV into our data platform to populate database names against machines, I am thinking of keying on KEY-Hostname:Machine but I am worried about getting an error about duplicates. I am very new to FDP.  I understand that there is a restriction around duplicate keying i.e. keying multiple times on the same hostname... I am thinking I need to generate a unique key on the source e.g.  Hostname\ins1:Database1, but this still doesnt resolve that a single machine can have multiple databases on it.   I am interested in if anyone else has attempted this and how you may have approached the resolution.  Example Data:  Hostname Instance Name Database Hostname1 Hostname1\INS1 Database1 Hostname1 Hostname1\INS1 Database2 Hostname2 Hostname2\INS1 Database3 Hostname3 Hostname3\INS1 Database4 Hostname3 Hostname3\INS2 Database5 ... View more