Username in Insight Report
Accepted answer
1. Create a new Query
2. Add a new Data Item to it.
3. Set the Expression of the Data Item to :
#sq($account.personalInfo.userName)#
4. Drop a Singleton onto the report page where you want the username displayed and associate the singleton with the query above.
5. drop the data item from the query onto the Singleton object.
ref http://pic.dhe.ibm.com/infocenter/cbi/v10r1m1/topic/com.ibm.swg.ba.cognos.ug_fm.10.1.1.doc/c_create_modify_session_parameter.html#create_modify_session_parameter and http://mycognos.blogspot.com.au/2009/03/displaying-report-author-name-in-report.html