Solution : https://service.sap.com/sap/support/notes/383823 (SAP Service marketplace login required)
Key words : 
report rmprog00001 forecast restriction002 control parameters forecast003 selected plants, 001 forecast restriction002 control parameters forecast003 selected plants, proto     log recordupdte     savewerk      plant, oracle database returns error ora-01555, attached source code corrections, planning areas                      createmat      material, additional key words mp38, 005 selected planning areas, selected plants, prdur     forecast execution
Related Notes : 
       
| 616176 | Material forecast: deleting inactive data records from PROW | 
| 604589 | Material forecast: Version management in background | 
| 581172 | Material forecast: Short dump DBIF_RSQL_INVALID_RSQL | 
| 502897 | Forecast: Rounding strategy in Transaction MM02 and MPxx | 
| 428995 | Correction to Note 383823 | 
| 335336 | Matl forecast:Short dump w/ 'FACTORY_CALENDAR_NOT.' | 
| 185822 | ora-1555 - cause and action | 
| 183032 | Batch forecast: Reprocessing forcst errors & exception | 
| 60233 | Oracle rollback segments, more information. | 
| 3807 | Error messages regarding rollback and undo segments |