There are definitely other businesses that use Derby.  My company's is one, but as an embedded database many companies do not advertise or promote the fact that they use Derby.  I can assure you that Derby is reliable and scales quite well.  Just one data point to consider.

On Fri, Jan 17, 2014 at 7:42 PM, AirDT <> wrote:
Thank you for your reply Dyre

As indicated in the list

many products use Derby but only one Business Application use it.
Why ?

We develop an application that uses HSQLDB today. We have about 500 users.
We fail to understand why sometimes, users lose data. We want to replace the
HSQLDB database with another database ...


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