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List the table modification commands in SQL?
A) Deletion
B) Updates
C) Insertion
D) Update of a view
E-R model uses this symbol to represent weak entity set ? A Doubly outlined rectangle symbol is used to represent weak entity set.
Differentiate between Key and superkey? Key and superkey - A key a single attribute or a combination of two or more attributes of an entity set in which is used to identify o
Define physical image of a global relation at a site
What are the two distinct aspects to the implementation of associations? i) It is required to define data declarations which will enable details of actual links to be stored. I
what is query processing ,query optimization and performance turring?
WHAT IS DATABASE TECHNOLOGIES
discuss the array implementation of a stack.
Write short notes on data ware housing? Data ware housing applications needs the transformation of data from many sources into a cohesive reliable step set of data configured a
Define what Immediate database modification technique uses? Ans: Both undo and redo.
Which is an advantage of view? The Advantages of view is Data security, Derived columns and Hiding of complex queries
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