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What is meant by normalization of data?
It is a process of examining the given relation schemas based on their Functional Dependencies (FDs) and primary key to achieve the properties
Minimizing redundancy
Minimizing insertion
deletion and
updating anomalies.
Concurrency issues Data integrity: Threads accessing same object need to be synchronized, such as: banking account. Deadlock: One or more threads in system are perman
What is association? Give an example of association Association is used for establishing relationships among classes. Association describe links among/between classes. For exa
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List the set operations of SQL? 1) Union 2) Intersect operation 3) The except operation
It can be easily defined as: The database must not have any unmatched foreign key values. The term "unmatched foreign key value" means a foreign key value for which there doe
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
as a customer service employee, explain five measures you would recommend a displeased student to patronise a school canteen
how map binary relation one to one
Implementing software control To implement software control designer must redesign strategy of state event model which is present in dynamic model. There are three basic ap
Difference between Operating System and Database Security Security within the operating system can be executed at various levels ranging from passwords for access to system, t
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