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Explain Stand Alone Query Language in details?
Stand alone Query Language - The query language that can be used interactively is known as stand alone query language. It does not require the support of a host language.
Mention the several levels in security measures. A) Database system B) Operating system C) Network D) Physical Human
construct an er diagram for a hospital with a set of patients and a set of medical doctors. associate with each patient a log of various test and examination conducted.convert er d
Can a domain, assigned to a data element be changed? Yes. We can do so by just overwriting the entry in the field domain.
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
Explanation on Data Sharing?
Representing complex relationship among data A database may contain varieties of data interrelated to each other in numerous ways. A DBMS must have the capability to represent
Support by Adding Indexes Multiple indexes can be used to access a data file by multiple access paths. In such a scheme only single copy of the data is consider, only the numbe
What is known as a search key? An attribute or set of attributes used to look up records in a file is known as a search key.
Explain the Object-oriented decomposition Object-oriented decomposition targets at identifying individual sovereign objects that encapsulate both a state and certain behavio
Define Two phase commit Two phase commit: To make sure atomicity, all the sites where a transaction is being executed must agree on the final outcome of the execution. The tran
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