Solution : https://service.sap.com/sap/support/notes/585299 (SAP Service marketplace login required)
Key words : 
incorrectly entered locale arabic_saudi arabia, terms arabic_saudi arabia, windows operating system, microsoft code page, arabic_saudi arabia, incorrect locale, toupper behavior, arabian characters, table tcp0c, support package
Related Notes : 
       
| 39473 | locale and TCP0C |