Solved! Go to Solution.
Hi,
found the solution to my issue! The problem was the database name. Your are not allowed to use mixed capital and lower letters or underscores in the name of your database. For example it is not allowed to call the database "myTestDb".
...
Hope this issue will be resolved with the next service pack for ArcGIS 10.1.
Regards
Martin
Martin, this really sounds like a database issue, not an ArcGIS issue.
This also seems to be confirmed by for example the discussion thread below, that talks about the need to "Quote" database and field names in PostgreSQL in case of using mixed upper and lower case letters:
http://stackoverflow.com/questions/9538668/postgresql-forces-lowercase-names