Hi Sri Reddy,
Do you want to migrate the to the JAVA stack's db schema?, you know that you won't use the RFC lookup and you would need a jdbc lookup, are you sure you want this information stored in a db?
Are you talking about a great quantity of data, there are another types of value mapping: http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/00ee347e-aabb-2a10-b298-d15a1ebf43c5?overridelayout=t…
Depending the business infrastructure you could use an ECC dictionary or another third database, have you considered this option?
Regards.