Database functions-system development life cycle
Write a short on the six database functions which occur during the systems development life cycle?
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The enterprise modeling that analyzes the present data processing. Conceptual data modeling which identifies attributes, entities, and relationships. The logical database design is identifies data security and integrity requirements. The physical database definition and designs which defines database to DBMS. The database implementation that installs and alters data from previous systems. Database maintenance that fixes mistakes in the database and database applications.
You have been given a setup of tables with data and inquired to make a new database to store them. What are you looking for, when you observe the data values in the tables?
Define the term Smoothing.
Illustrates the third normal form?
Specify the options in the target session of the update strategy transformation?
State the difference between the content store and content manager?
Illustrates the levels of data abstraction?
Database Requirements Consider a MOVIE database in which data is recorded about the movie industry. The data requirements are summarized as follows: • Each movie is identified by title and year of release. Each movie has a length in minutes. Each has a production company, and each is classifie
Describe some of the major objectives of normalization?
Briefly explain the functional differentiations between COGNOs and BO?
Write out the disadvantages of using the Alias?
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