Delete rows from existing DB without Asking

ippissauli · **Joined:** Mon Apr 14, 2008 10:04 am **Posts:** 2

Hibernate version: 2.0.0.Alpha1

Name and version of the database you are using: Oracle 10g release 2

Hi,

I'm trying to use NHibernate for a new Projet with an existing DB that I can't modify.

I've made some Entities and mappings with Unit Tests (NUnit 2.2) .

On the first test I've tried (just getting the list of all the entities from one table), Nhibernate deleted all the rows of my table and the columns I didn't use in my mapping file (some columns are not needed for my application). It's like it dropped all the existing tables and created a new version of them based on the mapping file.

Some explanations would be helpful ...

Must I map all the fields of the tables I will be using ??
Can't I keep my existing Rows ?? (A bit annoying ...)

Thanks for your help.

wolli · **Posted:** Mon Apr 14, 2008 10:31 am

What are you doing ? Post your code when you create the session factory. Do you use SchemaExport ?

ippissauli · **Joined:** Mon Apr 14, 2008 10:04 am **Posts:** 2

OUCH !

Didn't see this ... !

That will teach me not to copy/paste from samples without understanding what I am doing ... !

Yes, I was doing ShemaExport ... !

Sorry for the stupid question ... sometimes the errors are so big that it is blinding us !