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Explain the systems development life cycle.
This is the traditional method to develop, maintain, and replace information systems that contains the project identification and selection, project initiation and planning, analysis, logical design, physical design, execution, and maintenance steps. The process is a series of steps that are ideally completed in a linear fashion. In reality, the process is not linear and the process needs steps to be revisited and an overlap of steps.
What is relational model feature? A relational model feature is much more data independence than some other database models.
What are metrics for choosing the best algorithm? Matrices for choosing the best algorithms are as below: Computational complexity Ease of understand ability and im
Improved performance: As the data is located near the site of its demand, and given the inherent parallelism because of multiple copies, speed of database access may be good for di
Question: Data Mining is the process of extracting knowledge hidden from large volumes of raw data. (a) Using a suitable example, illustrate how Data Mining can be useful t
Define Database layer? The database layer defines the data formats used in the database.
Haw does it work one database application
ER diagram on cosmetics
what is check point in database management system
These are designed to reduce the effects of a database failure and make sure a database is restored to a consistent state if a failure does arise. Manual backup/restore utilities n
Define outer union operation of the relational algebra. Compute the outer union for the relations R and S given below. Outer Join - If there are any values in one tabl
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