Solution : https://service.sap.com/sap/support/notes/374276 (SAP Service marketplace login required)
Key words : 
46d executables support multiple schemata, 6c basis support package 16, 6d basis support package 11, basis support package 7, 0c sr1 installations, required dictionary adjustments, mssql-based systems, patch level statuses, support package 15, multiple schemata
Related Notes : 
       
| 388866 | Multiple Components on One Database - Installation | 
| 388638 | |
| 131387 | No authorization to log on as a trusted system | 
| 90323 | Display of RFC logon screen in SM51 |