Solution : https://service.sap.com/sap/support/notes/335877 (SAP Service marketplace login required)
Key words :
------ table access full edidc additional key words poor performance, current oracle support package set, current support package set, ------ index unique scan edidc~0, full table scan, index rowid edidc, cost-based optimizer, incorrect resulting quantity, table access, access plans
Related Notes :
| 658322 | Composite SAP Note: Incorrect resulting set with Oracle |
| 184134 | Current patch set for Oracle 8.0.6 |
| 170989 | Poor performance under Oracle 8044, 805*, 8.0.6 |