Solution : https://service.sap.com/sap/support/notes/154351 (SAP Service marketplace login required)
Summary : 
      This SAP Note addresses several issues with language import and patch applications across SAP R/3 Releases 4.5 and 4.6. Issues include inconsistent file messages during imports, terminated jobs due to file access errors, misleading status indicators after successful imports, and import refusal of older language versions post Support Package application. Solutions involve applying specific Support Packages, adjusting file directories, and ensuring file accessibility. Errors like overflow in table TLSYHPG and aborted imports due to timeouts are noted, with recommended patches or procedures to remedy these issues.
Key words : 
sgrw_om sgrw_ps sgrw_pc sgrw_sl sgrw_pca sgrw_ec sgrw_lis, language import job sap language-import-job-1 terminates, upgrade ora-1631 db2-904 ----- supportguide 20010208093844 -----reportwriter, ~ftp/general/r3server/patches/rel45b/, ~ftp/general/r3server/patches/rel46b/, ~ftp/general/r3server/patches/rel46c/, apply basis support package sapkb46a12, apply basis support package sapkb46b01, correct code page conversions contained, additional key words language import
Related Notes : 
       
| 352941 | Consultation: Languages and Support Packages | 
| 325186 | Language import:long runtime in SMLT and LANG_IMP3 | 
| 195442 | Language import and Support Packages | 
| 179580 | Current note on language import 4.6B | 
| 173814 | OCS: Known problems with Support Packages for Release 4.6 | 
| 164395 | Current note about language import 4.6A | 
| 142732 | Current note about language import 4.5B | 
| 136649 | R3trans: Selective language import | 
| 135041 | Separation LCPs HR / Hot Packages as of Rel. 4.5B | 
| 97629 | OCS: Known problems with patches Rel. 4.5 | 
| 18601 | Frequently asked questions on language transport | 
| 13719 | Preliminary transports to customers (note for customers) |