During the work with Web Intelligence Rich Client I got the error:
Database error: (CS) "Unexpected behavior" . (IES 10901) (WIS 10901)
Of course service.sap.com offered the solution, but as always they didn't help me, but maybe some of you can try it:
Cause
ORACLE_BASE and ORACLE_HOME environment variables were not set to the correct 64 bit path.
Resolution
1. Set ORACLE_HOME and ORACLE_BASE to the correct paths.
eg. ORACLE_BASE=<Oracle_client_install_folder>/product/11.2.0/client_1/BIN
ORACLE_HOME=<Oracle_client_install_folder>/product/11.2.0/client_1
2. Reboot the Server machine.
But I solved it in other way - just use full Oracle Client, it's pretty heavy around 1 GB but help you.