Error with NHibernate 2.1 and Oracle 10g client

nhibernate, oracle, oracle10g

Solution

I asked this same question in the NHUsers group, and got an acceptable answer. Add the following to the hibernate configuration:

<property name="hbm2ddl.keywords">none</property>

See http://fabiomaulo.blogspot.com/2009/06/auto-quote-tablecolumn-names.html

Problem

I need to get NHibernate 2.1 to talk to an oracle database. I am being required to use the Oracle 10g client. I get the following error when trying to build my session factory: Unable to cast object of type 'Oracle.DataAccess.Client.OracleConnection' to type 'System.Data.Common.DbConnection'. I don't recall getting this error with NHibernate 2.01. I am trying to get the server admins to install the 11g client, but it looks like that is a loosing battle. Here are the important bits from my web.config: ``` <runtime> <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1"> <qualifyAssembly partialName="Oracle.DataAccess" fullName="Oracle.DataAccess, Version=10.2.0.100, Culture=Neutral, PublicKeyToken=89b483f429c47342"/> </assemblyBinding> </runtime> <hibernate-configuration xmlns="urn:nhibernate-configuration-2.2"> <session-factory> <property name="dialect">NHibernate.Dialect.Oracle10gDialect</property> <property name="connection.provider">NHibernate.Connection.DriverConnectionProvider</property> <property name="connection.driver_class">NHibernate.Driver.OracleDataClientDriver</property> <property name="connection.connection_string_name">Demo</property> <property name="show_sql">false</property> <property name="proxyfactory.factory_class">NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle</property> </session-factory> </hibernate-configuration> ``` Full stack trace ``` at NHibernate.Tool.hbm2ddl.SuppliedConnectionProviderConnectionHelper.Prepare() at NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.GetReservedWords(Dialect dialect, IConnectionHelper connectionHelper) at NHibernate.Tool.hbm2ddl.SchemaMetadataUpdater.Update(ISessionFactory sessionFactory) at NHibernate.Impl.SessionFactoryImpl..ctor(Configuration cfg, IMapping mapping, Settings settings, EventListeners listeners) at NHibernate.Cfg.Configuration.BuildSessionFactory() at ConsoleApplication6.Program.Main(String[] args) in C:\\Dev\\Temp\\ConsoleApplication6\\Program.cs:line 26 ```

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