o2com 1

1 A database

The authors follow a pragmatic strategy in considering a priori that an
ODBMS is a kind of DBMS.
Let us first review what this sets as requirements; what, as it feels,
should be preserved from the RDBMS into the final ODBMS.

This will lead us to see how even some of these ‘traditional’ concerns may
have to be reevaluated in the light of the object paradigm.

11

Mandatory features for a DBMS

12

Traditional issues in the new context

121

Distribution architecture

122

Clustering

123

The query language

13

Implementation note