Solution : https://service.sap.com/sap/support/notes/1577019 (SAP Service marketplace login required)
Key words : 
symptom segment builder application, access sap hana database, secondary database connection, sap hana db, older sap kernels 700, apply support package 7, prerequisites sap_basis version, segment builder, terms hana, sap kernel
Related Notes : 
       
| 1597627 | SAP HANA connection | 
| 1589983 | No DBCON entry possible for SAP In-Memory Database | 
| 1514967 | SAP HANA 1.0: Central Note |