Bug: ArcSDE 9.1 does not connect to Oracle10gR2 databases
** This issue is addressed in ArcSDE 9.1 Service Pack 1 (SP1) **
ArcSDE 9.1 fails to connect to Oracle 10g R2 databases with one of the following errors:
- "Error: Underlying DBMS error (-51)"
- "Error: Unable to connect
DBMS error (0)"
Click on the link in Related Information below to download the Service Pack, if necessary. **