Solution : https://service.sap.com/sap/support/notes/758297 (SAP Service marketplace login required)
Key words : 
transaction db50-> problem analysis-> tables/views/synonyms            enter trfcqin, sql statement caused error message -2027, symptom sql error -2027 stating, sap db/maxdb software, choose 'deny index access', trfcqin table, transaction st05, index access, choose 'display', -mentioned index
Related Notes : 
       
| 530567 | Importing SAP DB Version 7.3.00 B33 or higher (OLTP) |