biee11g无法连接数据源的问题

This is a behaviour change when we move from 10g to 11g. In BI EE 10g, there was no Oracle Client bundled along with BI EE. So, BI EE will use your Oracle DB Home client to connect to the database. Generally no issues in that case. But in BI EE 11g, the software itself contains the 11.2 DB client. So, when you try to connect to the database through the Repository or BI Server, it will try to find the tnsnames entry in the Oracle Client of BI EE 11g instead of your database. There are 2 options to work around this

1. Copy your tnsnames.ora to {Oracle_BI1}\network\admin directory & {oracle_common}\network\admin directory (only the former is needed as that is the ORACLE_HOME)

2. Or instead of tnsnames.ora source entry, use the full expanded tnsnames as shown below

(DESCRIPTION =(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.66.173)(PORT = 1521))(CONNECT_DATA =(SERVER = DEDICATED)(SERVICE_NAME = orcl)))