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Problem:
(a) Briefly explain the ‘Hierarchical Database Model' using appropriate diagram.
(b) List and briefly describe five potential benefits of the database approach compared to conventional file systems.
(c) To address the issue of data independence, the SPARC/ANSI three level architecture was proposed. Compare and contrast the three levels of the model.
(d) Explain briefly the parts of the Relational Model.
What are the advantages of relational data model? Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer
A model in database system mostly defines the organisation of data or structure and a set of operations on that data. Relational model is a easy model in which database is represen
What are the advantages of Logical Databases? It offers a simple-to-use selection screens. You can change the pre-generated selection screen to your needs. It offers check f
Your OS has a set of queues, each of which is protected by a lock. To enqueue or dequeue an item, a thread must hold the lock associated to the queue. You need to implement an a
Sequential File Organisation The most necessary way to organise the collection of records in a file is to use sequential Organisation. Records of the file are stored in series
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10A.53 Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department. 10A.54 Code an Oracle Database trigger to allow the
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In which format database schema is written ? Data base schema is written in the DDL format.
Project Description: I want to build a card playing Website. The user should be able to 1. Login. 2. Have profile access. 3. Put money into the site. 4. Selects t
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