Question

Difference between conceptual design of odb and rdb

Answer 1

RDB

Programmers takes 25% of coding time checking the program object to database.

ODB

Direct and enhanced.

RDB

Table framework easy to learn and many end-user tools available.

ODB

OK for programmers and some SQL access for terminal users.

RDB

Gives independence of data from application and good for simple relationships.

ODB

Objects are simple way to model which can take into account a wide variety of types.

RDB

Level of safety changes with vendor and must be traded off by achieving both requires extensive testing.

ODB

Level of safety varies with vendor where most ODB allows programmers to extend DBMS functionality by explaining new classes