data models, Database Management System

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What is the initial step for object-oriented designing, What is the initial...

What is the initial step for object-oriented designing The initial step for object-oriented designing is object modeling. Before we go into deep about object modeling first of

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Write an sql statement to find what is the percentage of home policies which are from the state of Arizona out of all Home policies by Policy Value.

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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

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Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo

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Create 1 experiment to demonstrate an aspect of query optimisation by using access-path structures (indexes), decomposition, or denormalisation. Once satisfied with your experiment

Forward recovery (redo), Forward Recovery (Redo): In this system the commit...

Forward Recovery (Redo): In this system the committed changes made by a transaction are reapplied to a previous copy of the database.                          In simpler

Explain the term- periodic recomputation, Explain the term- Periodic recomp...

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What are the two types of serializability, What are the two types of serial...

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