Ya, You may have put me on the right track. I copied all the .jar files from my jdev tree to what I think is the right place in my Mathematica tree. I'm not sure which of the .jar files it wants. I bounced Mathematica. I tried the=20 OpenSQLConnection expression. It hangs (but no error msg this time!). So it looks like it's knocking on the door and Oracle will not answer. I'll try it against a 9i DB tomorrow. -msg On 5/20/05, Christian Antognini <Christian.Antognini@xxxxxxxxxxxx> wrote: >=20 >=20 > >Any more trouble shooting hints or tips? >=20 > I suppose that with Jdev and OEM you use another JDBC driver. If it's the= case try to replace the Mathematica JDBC driver with the Jdev or OEM one..= . >=20 >=20 > HTH > Chris > -- //www.freelists.org/webpage/oracle-l