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Define query optimization.
Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
Differentiate between the object oriented decomposition and the structured decomposition? Process-oriented (structural) decomposition divides a complex process, function or tas
Data Warehousing & Mining 1. What is the concept of knowledge discovery in database? 2. Describe the following types of Multidimensional Data Models. • Stars, Snowflakes and
how many types of data model in DBMS? explain data abstraction with its different level
Where does view definition stored? A view definition is permanently stored as part of the database.
(a) Differentiate between information and data . (b) List and briefly explain five potential benefits of the database approach compared to conventional file systems. (c) Diff
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Discuss along with examples about several types of attributes present in the ER model? Types of Attributes are: • SIMPLE attributes are attributes which are drawn from the ato
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
About Attribute inheritance
What is Object Oriented model? This model is based on collection of objects. An object has values stored in instance variables with in the object. An object also having bodies
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