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Define an operator that a Relational Algebra does not have Ans: Relational Algebra does not have Aggregation operators.
List two restrictions that are applied on the modification (updation, insertion or deletion) of base tables through view. Ans: The two restrictions are: 1. If a view
explain normalisation
Question: Consider the following database relations for a textbook ordering system used by a college bookshop: Book (b-copy#, bname, ISBN#, author, price, subject) Order (s#
Explain the Static or conservative Two Phase Locking: Static (or conservative) Two Phase Locking: In this type of scheme, all the data items are locked earlier than any opera
Enumerate or state the steps in creating a relevant database of a shop.
notes about update opreation
What is a function group? A function group is a collection of logically related modules that share global data with every other. All the modules in the group are contained in
What is the role of a database administrator?
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