Solution : https://service.sap.com/sap/support/notes/577640 (SAP Service marketplace login required)
Key words : 
sqlplus   sapr3/sap   set linesize 132   set echo, terms incorrect data star_transformation_enabled true temp_disable patch set 8, col plan_plus_exp format a106   spool sel_star_true, log   alter session set star_transformation_enabled = temp_disable, log   alter session set star_transformation_enabled = false, log   alter session set star_transformation_enabled = true, trace file namethe trace, dir %oracle_home%\bin\oracle, receive incorrect data, oracle parameter   star_transformation_enabled
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| 565075 | Recommendations for BW systems with Oracle 8.1.x |