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Evaluate, compare and contrast the two methods of relational database design namely top down method and Bottom up method. What will be your choice if you are asked to select a method? Justify your choice.
FDs in Entities : Student entity : Enrolment number → Student name, Address Course Entity :
Explain the concept of Modeling With Objects A model is a conceptual representation of a specification, design or system from a particular point of view. A modelling language
Report writing help on database mgmt Project Description: Use of Harvard referencing, critical analysis is required. Skills required: Academic Writing, Technical Writin
What is B-Tree? A B-tree eliminates the redundant storage of search-key values .It permits search key values to appear only once.
Explain Alternate key? Alternate Key - All the candidate keys except primary key are known as alternate keys.
What is a relationship called when it is maintained between two entities? A relationship is called Binary relationship when it is maintained between two entities.
DISADVANTAGES OF RDBMS
Unrepeatable reads : Assume T7 reads X twice during its implementation. If it did not update X itself it could be very disturbing to see a dissimilar value of X in its next read. B
State about the Use Case Diagram A use case diagram represents a set of use cases, actors and their relationships. These diagrams shall be used to model context or requirement
An orchestra database consists of the following relations: CONDUCTS (conductor, composition) REQUIRES (composition, Instrument) PLAYS (Player, Instrument) Give the relational
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