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What is deadlock? How can it be avoided? How can it be resolved once it occurs?
Deadlock happens when two transactions are each waiting on a resource that the other transaction holds. Deadlock can be stooped by requiring transactions to acquire all locks at the similar time; once it happens, the only way to cure it is to abort one of the transactions and back out of partially completed work.
Explain briefly concurrent task by taking an example. Concurrent Task- The concurrent occurrence of more than one event is called concurrent task. Operating systems can handl
Project Description: I need a point of sale for motels. It needs to run on windows and requires being network able so that we can have more than one computer using it at once.
For the relations R and S given below: R S A B C 1 4 7 2 5 8 3 6 9
Define average seek time. The average seek time is the average of the seek times, calculated over a sequence of random requests.
Why is database redesign necessary? Database redesign is essential for two reasons. First, redesign is essential both to fix mistakes made during the initial database design. S
Use inheritance as an implementation technique when you are going to use inheritance as an implementation technique, you can achieve same goal in a safer way by making one cla
case study
What is theta join explain? Theta Join - The theta join operation is an extension to the natural-join operation which permits us to merge selection and a Cartesian
Benefits of using heuristics
Build a database application for a sports league. Assume your application is to keep track of teams and equipment that is checked out to teams. Explain the steps that is needed and
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