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What are the Issues when Selecting a Database
Issues when Selecting a Database
Data Independence This brings us to our next topic: data independence. It is the property of the database which tries to make sure that if we make any change in any level of sc
Question: (a) Why is it important to know the architecture rather than to start requirement capture when designing a large scale system? (b) Who are the different people in
As with other software, databases can potentially be used for unethical purposes. As a database developer, and a consumer, you should recognize database misuse, and how it may affe
Explain the challenges before an E-business management.
With the linear commit protocol, sites are connected in a chain, and the subtransaction at the left-hand end of the chain initiates the protocol. Propose a crash recovery protocol
Define the following constraints for the table client. (i) BAL_DUE must be at least 1000. (ii) NAME is a unique key. (i)ALTER TABLE CLIENT ADD CONSTRAINT CLIENT_BAL_DUE_C1
assume we have the following apllicationthat model sccer team the games they play and the players inv each teamin the design we want to capture
WHAT IS SQL
In case of entity integrity, the primary key may be declared? In a case of entity integrity primary key may be not Null.
Define tuple variable Tuple variable is a type of variable whose domain is the set of all tuples.
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