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Increases efficiency: Data is stored close to most often used site, therefore retrieval would be faster. Also, data that is not required by local applications is not stored, therefore the size of data to be looked into is smaller.
Explain four causes for failures in data warehouse projects
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
Explain the disadvantages of a file processing system? Ans: Disadvantages of File Processing Systems include: 1) Data Redundancy 2) Data Inconsistency 3) Difficult to acce
Give two profit of Reuse of Code. Reusing the implementation . Place existing class directly inside a new class. The new class can be made up of any number and type of the oth
can you create a database for me in oracle/sql
Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...
Describe relational model? Structure of relational data base Basic structure Database schema Keys Schema diagram Query languages
explain cascading rollback
Niles Video Inc. wants to create a website for online sales of movies (DVD and videotapes). People will be allowed to register as customers on the website and to update their store
Differentiate between various levels of data abstraction? Data Abstraction - Abstraction is the procedure to hide the irrelevant things from the users and represent the rele
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