but mam,in the 8c method , the super class already has a attribute that is "jobtype".....then how did you add the "job type" as a type attribute in the scema....
The type (or discriminating) attribute whose value indicates the subclass to which each tuple belongs. This option works only for a specialization whose subclasses are disjoint. In this example job_type is also the attribute of superclass. So the same you can use as a flag attribute For example if the Bank Account is of two types 1. Saving Account & 2. Current Account ; so in this case you can use aacount_type as a type attribute.
how to map inheritance (tree structure) ?
but mam,in the 8c method , the super class already has a attribute that is "jobtype".....then how did you add the "job type" as a type attribute in the scema....
The type (or discriminating) attribute whose value indicates the subclass to which each tuple belongs. This option works only for a
specialization whose subclasses are disjoint. In this example job_type is also the attribute of superclass. So the same you can use as a flag attribute For example if the Bank Account is of two types 1. Saving Account & 2. Current Account ; so in this case you can use aacount_type as a type attribute.