Solution : https://service.sap.com/sap/support/notes/536991 (SAP Service marketplace login required)
Key words : 
syntactically incorrect sql statement, terms rsdu_exec_sql lrsdu_sql_db6f01 reason, 0b            import support package 26, 1c            import support package 18, 0a            import support package 11, 0b            import support package 04, create_table_as_select/rsdu_exec_sql /bi0/0100000010 104-, 0b support package 26, 1c support package 18, 0a support package 11
Related Notes : 
       
| 523196 | SAPBWNews BW 2.1C Support Package 18 | 
| 523133 | SAPBWNews BW 2.0B Support Package 26 | 
| 493975 | SAPBWNews BW 3.0B Support Package 04 | 
| 458702 | SAPBWNews BW 3.0A Support Package 10 |