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Answer Posted / rahul nittala
The concept of packages came from this particular problem
which was faced earlier:
when there were no packages, all the dbrms for a respective
program have to be bound directly to the plan. In such
cases, whenever there was any change made to any calling or
called program within the plan, all the modules had to be
bound to their individual dbrm and then all the dbrms had
to be bound to the plan. To avoid this, the concept of
package was introduced which was just an address location
in the memory and not a physical entity. By introducing the
package concept, it was not necessary to bind all the
individual dbrms again, only that module to which change
was done had to be bound to that respective package. There
will be a one - to - one relation between a dbrm and a
package. A package actually stores the address of the dbrm.
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