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While using extract datasets it is required to have a special workarea for interface
False. It is not required to have a special workarea for interface
Consider the following six relation schemes and their corresponding sets of functional dependencies. In each case identify a. All the candidate keys b. The highest normal for
What are the problems if one were not to normalize? When do these problems surface? Ans: Database normalization, sometimes considered to as canonical synthesis, is
Which of the operations constitute a basic set of operations for manipulating relational data? Relational algebra operations constitute a basic set of operations for manipulati
(a) Why did SAP introduce the extended star schema?
Explain retrieval in QBE? Retrieval in QBE : A "GUI" for expressing queries. Based on the Domain Relational Calculus (DRC) Actually invented before GUIs. Very co
In E-R diagram how generalization is represented? in E-R diagram generalization is represented by Triangle shape.
What is a dataset? A dataset is an in-memory database that is disconnected from any regular database, but has all the significant characteristics of a regular database. Dataset
Removing a Synonym: DROP SYNONYM D30;
At its most essential level the DBMS architecture can be divide into two parts: the back end and the front end. The back end is responsible for managing the physical database an
What are the three classes of SQL expression? SQL expression consists of three clauses: Select From Where
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