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I am doing research in this area, especially in sime join and join efficacy when several relations have been queried. Relations located in different sites. I need something like n
Explain in details about the f unctions of DBA ?
Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu
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Rearrange Classes and Operations Sometimes, the similar operation is defined across different classes and can easily be inherited from a familiar ancestor, but more often oper
The natural join is equal to which product? The natural join is equal to Combination of projection and Cartesian product
Let us now make the E-R diagram for the student database as per the explanation given in the previous section. We can also states the overall logical structure of a database usi
What is Primary key? Primary Key - Primary key is one of the candidate keys which uniquely identifies each row in the relation.
Which language has presently become the defacto standard for interfacing application programs along with relational database system? The language which has recently become the
What is data independence? Data Independence: Techniques which permit data to be changed without affecting the applications in which procedure it. There are two types of data
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