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Thanks for your reply. I don't know how to preserve initial format of the file here, so I'll replace empty cells of.csv with null.

Username; Asset Name

Corinna Mayer;JKDef4574

Janek Huska;NAdf8f48g5

Eric Shtits;JSd5345kPFl



Erik Fisher;UiO8trve

As you can see Eric Shtits owns 3 asset names in according to this .csv file, so two fields that supposed to be keys are empty.And I need to implement a solution that will be able to detect that all three asset names belong to one person. Regards, Kazak

In reply to Re^4: Parse a file into a hash by kazak
in thread [Resolved] Parse a file into a hash by kazak

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