Solution : https://service.sap.com/sap/support/notes/669656 (SAP Service marketplace login required)
Key words : 
> additional components  > sap kernel  > sap kernel <type>  > <operating system>  > sap db, session -> settings -> query dialog tab -> sql modethe sql mode, > additional components  > upgrade tools  > r3up  > r3up <version>  > <operating system>, runtime errors         dbif_rsql_sql_error  exception              cx_sy_open_sql_db  database error text, registration file '/usr/spool/sql/ini/sap_dbtech, err 51080 syserror -9402 ak unexpected strategy informationset, individual phases icnvreq phasetransaction icnv terminates, r3up -vmaxdb version   r3up version   min, > additional components  > upgrade tools  > corrections, sapr3  tmenu01t  tmenu01t^tid_x    2003-10-08delete
Related Notes : 
       
| 1617578 | Incorrect results for selects with correlated subquery | 
| 898358 | R3load: Entries remain in "/MAXDB/INDEXSTATEMENTS" | 
| 836947 | Error in the database catalog for UNICODE systems | 
| 789086 | Precompiler Runtime to be used for Extended Kernel | 
| 788623 | Additions to upgrade on SAP SRM Server 5.0 SR1 | 
| 788218 | Add. info. on upgrading to SAP ERP Central Component 5.0 SR1 | 
| 775047 | Add. info. on upgrading to SAP Web AS 6.40 SR1 | 
| 747108 | prg in ACT_620 phase in R/3 upgrd to SAP DB 7.4.03 | 
| 728788 | -602 AK Unexpected strategy information with join select | 
| 689574 | Add. info. on upgrading to SAP ERP Central Component 5.00 | 
| 684406 | Additional information on upgrading to SAP SCM 4.1 | 
| 683937 | R/3 upgrade with SAP DB/MaxDB >= 7.4.03 and Release < 6.20 | 
| 663258 | Corrections for R3up version 640 | 
| 663240 | Repairs for upgrade to Basis 640 | 
| 661640 | Add. info. on upgrading to SAP Web AS 6.40 | 
| 415073 | Termination or very long runtime in prepare phase DYNSPCADD |