Hi Bilal Ahmed,
I faced the same problem, the problem resolved after I added DBMS_TYPE parameter.
The parameter is evaluated when the application server is started. Valid values are:
ada: SAP MaxDB
db2: DB2 with OS390
db4: DB2 with AS400
db6: DB2 with UNIX/Microsoft Windows NT
hdb: SAP HANA
mss: Microsoft SQL Server
ora: Oracle
syb: Sybase
I added the parameter in windows environment variables. at System properties > Environement Variables > User Variables add new DBMS_TYPE = ORA (oracle etc)
And also I added DBMS_TYPE = ORA in <SID>_DVEBMGS00_<HOST> sap profile at
SAP installed Folder \usr\sap\<SID>\SYS\profile
BR
MFaisol