Merging two databases

Question

Hello,

I have a problem merging two databases in openLCA 1.11. If I try to merge the database (ecoinvent_391_cutoff and ecoinvent_391_cutoff_upr) I usually import the smaller database into the bigger one.
If I do this with these two, openLCA loads for 2 seconds and after that the loading window disappears but the information wasn't merged.

Does anyone have an idea how to solve this issue?

Thank you, Simon

Answer 1

The reason why it "loads for 2 seconds" is because openLCA will recognize that there are no new processes to import, since currently the LCI (system processes) and UPR (unit processes) ecoinvent 3.9.1 databases on Nexus have the same UUID numbers for the equal processes in the UPR and LCI version. We will upload an updated version of the ecoinvent 3.9.1 LCI (system process) databases with changed UUID numbers for all processes, so that the unit process database can be easily imported (merged) into the system process database, if desired. The unit process databases will keep the current UUID numbers.