The four categories of update anomalies are additions, deletions, inconsistent data, and ____________________
Fill in the blank(s) with correct word
updates
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The owner of a lost dog posts notices that she will pay $200 for its return. Someone who does not know about the reward finds the dog and returns it. The owner
a. must pay the reward due to public policy considerations that encourage the completion of such contracts b. must pay the reward because the unilateral contract was completed c. must pay the reward because there was an intent to make a valid offer and to be bound by that offer d. does not have to pay the reward because the offer was not communicated to the person who found the dog e. does not have to pay the reward because there was no meeting of the minds
The first in a series of steps to follow when creating a table is to:
A) identify columns that must be unique. B) identify each attribute and its characteristics. C) create an index. D) identify columns that must be null.
Some measures of forecasting accuracy include mean absolute deviation, mean absolute percentage error, and mean squared error. The formula for each is dependent on the forecast error, which is calculated by using the equation:
a. Actual demand for period t divided by the forecasted demand for period t b. Actual demand for period t plus the forecasted demand for period t c. Actual demand for period t minus the forecasted demand for period t d. The average of Actual demand for period t and forecasted demand for period t
Which of the following is commonly used to estimate the value of a business?
A. Synergy B. Industry heuristics C. Spin-offs D. Comparable sales of other firms