data models, Database Management System

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what is stracture of dabms

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Explain saving derived attributes to avoid re-computation, Saving Derived A...

Saving Derived Attributes to Avoid Re-computation   As discussed, "redundancy means duplication of exact data". But, if multiple copies of same data are present in the system,

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What is average response time? The average response time is that the average time for a transaction to be done after it has been submitted.

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Heterogeneous ddb and homogeneous ddb, Probelm: (a) A distributed datab...

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Optimistic concurrency contents -write-set(t), write-set(T): Each data ite...

write-set(T): Each data items that are written by a transaction T

Create data base table apply key and functions, CREATE YOUR DATABASE TABLES...

CREATE YOUR DATABASE TABLES Your database project must have a minimum of four tables. Include the SQL scripts used to create the tables in your documentation. Explain the tables

Illustrate the fifth normal form, Fifth Normal Form (5NF) These relatio...

Fifth Normal Form (5NF) These relations still have a difficulty. While defining the 4NF we mentioned that all the attributes depend upon each other. Whereas creating the two ta

Write the queries in relational algebra, Problem: You are given the fol...

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The transactions, The Transactions- A transaction is definite as the unit o...

The Transactions- A transaction is definite as the unit of work in a database system. Database systems that deal with a huge number of transactions are also termed as transaction p

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Create a Student database and Retrieve the names of all students majoring in ‘CS' Consider the following relational database: STUDENT (name, student#, class, major) COURSE (co

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