There are business rules that before version 8.0 of Oracle database could not be fully supported only on the database side, but needed “collaboration” between the client side and the database.
ABSTRACT
There are business rules that before version 8.0 of Oracle database could not be fully supported only on the database side, but needed “collaboration” between the client side and the database.
Probably the simplest example of such a rule is:
“The master instance must have at least one corresponding instance of the details “
(e.g. “DEPT must have at least one EMP”).