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An entity type usually has an attribute whose values are distinct for every individual entity in the collection. Such an attribute is known as a key attribute and its values can be
atient(PNumber, Name, NHS_no, Amount_due, DNO, Doctor, Medical_Treatment), relation of schema Staff(StaffNum, Name, DNO, Task) and relation of schema Dept(DNO, Name, Location, Dire
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Explain the components of Database System in details.
Describe Database state in details? Database state: The actual data within the database at a particular moment in time is known as a database state.
Advantages And Drawbacks Of Ddbms There are various reasons for building distributed database systems, with sharing of data, reliability and availability, and speedup of query
How many types of users works on database? Users are differentiated through the way they expect to interact along with the system (i) Application programmers-interact with
Q. Describe how an ER schema can be represented by relation schemas and constraints arising from ER design can be mapped to constraints on a relation schema. The entity rela
client server architeutre
what is attribute is attribute inheritance in dbms?
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