I am currently employed as a contractor to a large organization that currently supports ADABAS/NATURAL. For reasons not needed to be mentioned right now, they are looking to terminate their contract with SAG and convert to DB2 or ORACLE. I am fiercely working to prevent this from happening. I have been an ADABAS/Natural developer for over 20 years, but I have no experience with DB2 and my exposure to ORACLE has been limited to datawarehouse access. Outside of the time/expense of having to totally rewrite our systems, I need provide an argument that would convince the powers that be not to do this.
Are there features in ADABAS and Natural that would not available or duplicated in DB2/COBOL or ORACLE?
MU/PE fields, debug facility (I guess Xpediter is still around), expandable arrays, Read descending???
Any differences in performance, data compression/storage, monitoring, security, cpu utilization, etc.???
Any ideas or help with my argument would be appreciated.