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Why older data models are being replaced by new data modelling 100 words accepted#
CREATE TABLE prodtrans ( pno number (4) ptype char (1) CHECK (ptype in ('I','R','S')), qty number (5) FOREIGN KEY pno REFERENCES product (pno) ON DELETE CASCADE);
What is meant by object identifiers? Object-oriented systems use an object identifier to recognize objects. Object identifiers are unique: that is every object has a single ide
Which method of access uses key transformation? A Hash method of access uses key transformation.
sir, could anybody help me in getting complete information about the mentioned topic
Write a short note on QBE? Stands for "Query By Example." QBE is a feature involved along with various database applications which gives user-friendly techniques of running da
Give two profit of Reuse of Code. Reusing the implementation . Place existing class directly inside a new class. The new class can be made up of any number and type of the oth
i need help with creating database system for a library
What is a hash index? A hash index organizes the search keys, with their associated pointers, into a hash file structure.
What is the role of a database administrator?
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