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(a) Differentiate between information and data . (b) List and briefly explain five potential benefits of the database approach compared to conventional file systems. (c) Diff
List any eight applications of DBMS. a) Universities b) Airlines c) Banking d) Credit card transactions e) Tele communication f) Sales g)Finance h) Manufac
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
Implementation of association as an object Implement as a separate association object, independent of either class, as in Figure. An association object is a group of pairs
What are the advantages of by using an index and what are its disadvantages ? In difference, if the search key of a secondary index is not a candidate key, it is not sufficient
how many types of data model in DBMS? explain data abstraction with its different level
what is natural join?
Q. What is relational algebra and calculus? Explain the relational algebra operators :- Selection and predicate, set operation, joins and division. Sol. Relational Algebra
What is the most significant feature that does not directly map into programming language structures? Why? Association, since there are complex types of association, like as qu
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