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Package classes and associations into models
Programs are made of separate physical units which could be edited, imported, complied or otherwise manipulated. The careful partitioning of an implementation into package is significant for group work on the program. Packaging has the following issues:
a. Information hiding
b. Collection of entities
c. Constructing physical modules with strong coupling with each other module.
What is meant by normalization of data? It is a process of examining the given relation schemas based on their Functional Dependencies (FDs) and primary key to achieve the prop
Probelm: a) In the context of OODBMS, define the following terms with appropriate examples. (i) Object class. (ii) Abstract class. (iii) Aggregation. (iv)
(a) Why did SAP introduce the extended star schema?
What are the features of embedded SQL? Explain. Embedded SQL - SQL could be implemented within two ways. It can be used interactively or embedded in a host language or throu
a. Construct a query around any one of the functional divisions you made in 4a such that if executed in the distributed design of 4 would require reconstruction of at least two ho
How does Tuple-oriented relational calculus vary from domain-oriented relational calculus? The tuple-oriented calculus uses a tuple variables i.e., variable whose only allowed
Draw an Entity-Relationship model for the relational schema given in the Appendix. Show all the entities, relationships, relationship names, and attributes and also underline the
Explain the paths in the association network We can analyze use of paths in the association network as given below: Calculate each operation Find associations whic
losers with new information systems
examples of fields in a database
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