Hi Knut, Paulo is right.. but I would suggest first drop these columns with
alter table minmaxdataelement drop column maximumvalue; alter table minmaxdataelement drop column minimumvalue; Then apply Paolo's statements: ALTER TABLE minmaxdataelement RENAME minvalue TO minimumvalue ALTER TABLE minmaxdataelement RENAME maxvalue TO maximumvalue Something must have gone wrong during the upgrade process. But I have tested at a few databases here now and not able to reproduce or understand why it happens. Lars
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