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What benefits can a company gain by managing its own information infrastructure and servicea
what is lossless & dependency preserving decomposition ?
Whst is logical schema ? Logical schema is the entire database.
Explain degree of relation? Degree of a Relation - The degree or arity of a relation is the number of attributes n of its relation schema.
explain exhausitively the problems associated with er diagrams with ellustrations
In which form of relational database developer refers to a record? In a tuple form of relational database developer refers to a record.
What is the major advantage of object-oriented programming paradigm? The ability to modify the explanation of an object without affecting the rest of the system is the main adv
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
Mappings between Levels and Data Independence The 3 levels of abstraction in the database do not exist separately of each other. There must be some correspondence, or mapping
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
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