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In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
What is a primary key? Primary key is chosen by the database designer as the principal means of identifying an entity in the entity set.
What is the difference between SQL Server 2000 clustered and nonclustered indexes? With a clustered index, the data are kept in the bottom level of the index and in the similar
design a generalization specialization hierarchy for a motor vehicle sales company. the company sells motorcycles, passenger cars, vens and buses.
Lack of standards and experience: The lack of standards has considerably limited the potential of distributed DBMSs. As well, there are no tools or methodologies to help users cha
What is database Trigger? A database trigger is a PL/SQL block that can explained to automatically execute for insert, update, and delete statements against a table. The trigge
When It is better to use files than a DBMS? It is better to use files than a DBMS when Multiple users wish to access the data.
define normalisation and functional dependency
The Maximum no of key fields that can be used in a header is?? 50
Can you assist me in Database management system? I need help in my courses, please email me at and get back me soon...
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