Solution : https://service.sap.com/sap/support/notes/491598 (SAP Service marketplace login required)
Key words : 
chronological order date          topic        short description ----------------------------------------------------------------------08/feb/06, schemauser sapr3shd oder sap<sid>shd19/apr/05, script \usr\sap\put\bin\oragetnls, /    important general information    ii/   freespace requirement, /    important general information ----------------------- < d022030 29/nov/02 >-------------------------upgrading, file$oracle_home/dbs/init<sid>, d030326 15/jul/02 >--------------------------------------------< d030326 25/mar/02 >-------------------------run_rscpfrom phase, ------------------------< d038245 08/feb/06 >----------------------schema user sapr3shd, cd-rom -----------------------< d025974 05/dec/02 >--------------------upgrading, extending next_extents storage parameters20/jul/00
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