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What are the properties in a relation ?
In a relation Ordering of rows is immaterial and No two rows are identical.
Illustration of implementation of inheritance Let us take the illustration of implementation of inheritance. Suppose that we are about to implement the Stack class and by now w
Give an example of multiple inheritance. One example of multiple inheritance is a committee for students affair which include faculty and administrative staff member.
gyan gurukul is a software company that provides software related solution.
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
What is primary Key Explain? Primary Key - Primary key is one of the candidate keys. It should be selected such in which its attribute values are never, or very rarely, chang
Event Occurrence of a process is called event. In other words, the object can receive many input instructions. The changes which occur due to these instructions are known as e
Define DBA database administrator? DBA : A database administrator (DBA) is a person who is responsible for the environmental aspects of a database. In common, these involves:
Can you scan double-sided documents - and remove blank pages? Our software and imaging systems supports duplex scanning, at the same time scanning both sides of a page. Program
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
Define query optimization. Query optimization refers to the process of search the lowest -cost method of evaluating a given query.
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