Installing on Oracle 9
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OpenCms 7.5.4
Installed on a system where the blank opencms - tables were already there. Problem: You cannot bypass touching the DB via deselecting the create checkboxes (http://bugzilla.opencms.org/show_bug.cgi?id=1961). So database had to be dropped which was only possible "as sysdba". Luckily the input field just takes the additional string for the user and everything went fine with the settings in the following screenshot: