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Briefly describe the different kinds of users of a DBMS.
Ans: Different sorts of DBMS users are:
(a) Software Engineers: These are the people accountable for developing application programs by using DBMS.
(b) End users: These are the people whose jobs need access to the database for querying, updating, and producing reports.
(c) Database Administrator: They are accountable for authorizing access to the database, coordinating and monitoring its use.
(d) Database designers: They are accountable for identifying data to be stored in the database.
Explain Hierarchical Model ? Hierarchical Model - It was established to model several kinds of hierarchical organizations which exist in the real world. It uses tree structur
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Increased overheads on update : On the drawbacks side, it will need the system to ensure that all replicas of a relation are consistent. This shows that all the replicas of the rel
It can be easily defined as: The database must not have any unmatched foreign key values. The term "unmatched foreign key value" means a foreign key value for which there doe
What are the objectives of query processing? Ans: The objectives of query processing is to transform a query written in a high level language into a accurate and efficien
A TDMS project plan is not a typical Information Technology project plan; therefore, a traffic data project has several unique characteristics: Traffic data management system
What is Foreign Key Foreign Key: Sometimes we may have to work with an attribute that does not have a primary key of its own. To recognize its rows, we have to use the primar
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What is a Name? A user-supplied name is used for identity. This form of identity is used for files in file systems. The user gives every file a name that uniquely identifies it
What are the two approaches to store relations in distributed database? a) Replication b) Fragmentation
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