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Discuss how the bi-directional Implementations are made.
In bi-directional implementation of the association, a pair of references must implement every link. The declarations and code essential to support such implementations are same as required in unidirectional implementation. The single difference is that suitable fields have to be declared in both the classes participating in an association.
1. Which relational algebra operations do not need the participating tables to be union-compatible? Ans: Join is the relational algebra operations that do not need the particip
What is a Built-in A notation of identity is built-into the data model or programming language and no user-supplied identifier is needed. This form of identity is used in objec
can you create a database for me in oracle/sql
QUESTION (a) Consider a car database consisting of car model, car make, car origin, Engine capacity, color, cost.
While using extract datasets it is required to have a special workarea for interface False. It is not required to have a special workarea for interface
What are composite objects? Objects that have other objects are known as complex objects or composite objects.
Hierarchical
why older data models are being replaced by new data models.
explain ANSI SPARC architecture
Define reference file
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