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Describe, with examples, the types of problem that can occur in a multi-user environment when concurrent access to the database is allowed. Give full details of a mechanism for concurrency control that can be used to ensure that the types of problem discussed in Question 20.3 cannot occur. Show how the mechanism prevents the problems illustrated from occurring. Discuss how the concurrency control mechanism interacts with the transaction mechanism.
Does a view occupy space in the database? In other words, does a view contain any data
Consider the linear search algorithm with scans through an n-element array a to determine if element xis in a. We say that the algorithm require i steps if x is located at index i; i.e. a[i] = x, for i = 0, 1, . . . , n ?
Create the algorithm which will prompt for and accept current salary for each of faculty members, then compute and show their individual pay increases.
Planning an investment strategy your knowledge of algorithms helps you obtain an exciting job with the acme computer company, along with a $10,000 signing bonus. you decide to invest this money with the goal of maximizing your return at the end of..
What is the role or place of structured methodologies, data, and algorithms? What differs between object-oriented and object-based languages
q1 consider the hire assistant problem. we interview n candidates and always hire the best qualified so far. let n 5
Using basic queue and stack operationns, write algorithm to reverse elemens in the queue. Suppose that 'Stack' is class described in section with 'StackType' set to int and STACK_CAPACITY
Write efficient backtracking algorithm which inputs the integer N, and outputs all of the ways which a group of ascending positive numbers can be summed to N.
Devise a linear-time algorithm to count the parallel edges in a graph. Write the algorithm in pseudocode.
Use any program with which you are comfortable to create your own flowchart for your website. Libre Writer or Microsoft Word are good programs to create a flowchart, but there are others
Create a flowchart that programs a robot to recognize how many playing cards you have and to put them in order from smallest to largest
Many of your family members have discovered that you are using Excel to organize the information for the high school reunion. Your Uncle Larry wants to make an inventory of the over 800 video games that he collects.
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