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(a) Explain the three types of potential mistake which could occur if concurrency control is not properly enforced in the database system. Support your answer with appropriate example for each.
(b) Explain the data access protocol based on the compatibility matrix.
(c) Describe "deadlock" and give an example.
(d) Describe how a deadlock state can be detected and how the system can break such a state.
Gyan Gurukul is a software company that provides software related solution. Ashutosh Dubey who is the director of Gyan Gurukul want a three-level schema architecture for the Gyan G
Design a gennalization and specialization hierarchy for an automobile sales company
Explain Dynamic Two-Phase Locking Here a transaction locks a data item instantly earlier than any operation is applied on the data item. After finishing all the operations on
What is the use of keyword ISA? The use of keyword ISA is to show that a class is a specialization of another class.
When a function module is activated syntax checking is performed automatically. YEs, a function module is activated syntax checking.
What is the function of SQL Server Agent Windows service? - It's a Windows service that handles tasks scheduled within SQL Server environment. These tasks are also known as job
With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
4. Describe three ways to handle missing field values
Example -Find the employee name, salary, department number and average salary of his/her department, for those employees whose salary is more than the average salary of that depart
what are the limitations of dbms?
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