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What is nested relational model? The nested relational model is an extension of relational model in which domains might be either atomic or relation valued.
Ask qu. Write a XML with database with book details (Book ID, Title, Author, subject, published year, language, vendor, and price).estion #Minimum 100 words accepted#
Define average latency time. The average latency time of the disk is one-half the time for a full rotation of the disk.
Explain the two constraints, check and foreign key in SQL along with an example for each. Give the syntax. CHECK constraint - CHECK constraint specifies an expression which
The primary key is selected from the
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
State the Component Diagram A component diagram represents a set of component and relationships among them. In a dynamic model, component diagram is used to model physical com
a project based on normalization with first, second and third normalization. There need to be a diagram also
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);
Find the names of all Albums that have more than 30 tracks. Result: (name: varchar(255))
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