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Where does view definition stored?
A view definition is permanently stored as part of the database.
explain exhausitively the problems associated with er diagrams with ellustrations
what is Nested relational model? Explain with examples.
What is OOM? Object oriented modeling is an approach by which modeling of systems is done by visualizing the system based on real world concepts. Object oriented modeling does
Define object-relational systems? Systems that give object-oriented extensions to relational systems are known as object-relational systems.
Answer SQL Queries to extract data from data tables and questions on mapping conceptual data models into relational data model.
A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.
What is the use of Union and intersection operation? Union: The result of this operation contains all tuples that are either in r1 or in r2 or in both r1 and r2.Duplicate tuple
write program
Why are cursors necessary in embedded SQL? A cursor is an object used to store the output of a query for row-by-row processing through the application programs. SQL statements
What is transaction? Transaction is a unit of program implementation that accesses and possibly updated several data items.
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