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Illustrate the class diagram for class room scheduling system
If in any college, the number of classrooms are limited which have to be allocated to various classes and instructors are fixed for every class, then the class diagram for allocation of classrooms and instructors is as follow:
Figure: Class diagram for a class room scheduling system
Deadlock And Its Prevention: As seen earlier, though two phase locking protocol handles the trouble of serialisability, but it causes some troubles also. For instance, consider th
Using Relational Algebra which query finds customers, who have a balance of over 1000 ? Using Relational Algebra Π Customer_name( σ balance >1000(Deposit)) is query to find cu
A file of employee have 10,000 blocks on a cylinder of a disk with characteristics r=8ms and btt=0.6ms I want to know the cost of read inthe file under following conditions for a q
external view of DBMS in healthcare department?
Explain Clustering file organization (i) Determine if a record of file is physically ordered on a nonkey field - that does not comprise a different value for each record - that
Physical Database Design Issues The database design includes the process of logical design with the use of E-R diagram, normalisation, etc., followed by the physical design.
Construct an ER diagram for a hospital along with a set of patients and a set of medical doctors Associate with every patient a log of the several tests and examinations conducted.
triggering
The physical location of a record is determined by which mathematical formula that transforms a file key into a record location? The physical location of a record is determined
tell me the functionality,advantages and disadvantages of student database
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