Solution : https://service.sap.com/sap/support/notes/777024 (SAP Service marketplace login required)
Key words : 
im04_aix_64/sapinst/unix/aix_64/nw04sr1/webas/abap/db6/, support package/tool patch level r3load >= 61 r3szchk >= 14 bw 3, cd51030944                     sap netweaver 04 sr1 kernel db2 udb, sap netweaver 04 sr1 unicode kernel db2, system adjusts database-specific ddic entries, special database platform maxdb---------------------------------- program smigr_create_ddlyou, special database platform db2-------------------------------- additional prerequisites, 300 -merge_bck -stop_on_error -nolog]]> </strval>important, special oracle database platform----------------------------------- implement, iseries inplace unicode conversion
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