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Describe the development process of Object oriented methods
Object oriented methods have roots which are strongly anchored back in the 60s, functional and structured methods were first to be used. This is not very uncommon, as functional methods are inspired directly by computer architecture (a proven domain, well known to computer scientists). The separation of data and program as exists physically in hardware was converted into functional methods. This is the reason why computer scientists got into habit of thinking with respect to system functions. Later it was felt which hardware should act as servant of the software which is executed on it rather than imposing the architectural constraints on system development process.
Explain the Functional Mode with help of an example. Functional Model The functional model shows a computation and functional derivation of data values in it without ind
What is the use of integrity constraints? Integrity constraints make sure that changes made to the database by authorized users do not result in a loss of data consistency. The
what is union compatable?
The advantages of a database management system (DBMS) include :- Data integrity and elimination of duplication.
A relationship set is a set of relationships of the similar type. For example, let consider the relationship among two entities sets course and student. Collection of all the in
(a) Design a query plan for the following distributed query: An application at site B wants to compute a join of STUDENT ? Id=StudId TRANSCRIPT where STUDENT (Id,Major) is at site
explain the level architectures of the database management system
What are the advantages of creating a table from existing table?
Define Boyce codd normal form A relation schema R is in BCNF with respect to a set F of functional dependencies if, for all functional dependencies in F + of the form.α ->β.
Run the following queries. For each query show 1) What you expect the output to be based upon the data 2) the SQL code and 3) the output running the query in Oracle. 1. Show all c
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