Explain what a null is and what some the implications of nulls are for databases
What will be an ideal response?
A null is the absence of a value. That means that it cannot be compared to other values. It also can't really be counted or included in calculations. Despite these facts, a null is often a better choice than a zero or an empty string, because it accurately reflects the unknown status of the value rather than substituting a value that may not be accurate and may effect calculations.
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________ cost is revenue that is foregone from an alternative use of an asset
a. Differential b. Sunk c. Relevant d. Opportunity
The buying period that takes place before the TV season begins and where networks sell much of their commercial time is referred to as the
A. spot market. B. up-front market. C. regional market. D. scatter market. E. off-network market.
A coal mine cost $1,003,000 and is estimated to hold 50,000 tons of coal. There is no residual value. During the first year of operations, 6,000 tons are extracted and sold. Calculate depletion per unit. (Round your answer to the nearest cent.)
A) $10.03 B) $5.02 C) $20.06 D) $15.04
Eban Corporation uses the FIFO method in its process costing system. The first processing department, the Welding Department, started the month with 18,000 units in its beginning work in process inventory that were 50% complete with respect to conversion costs. The conversion cost in this beginning work in process inventory was $52,200. An additional 55,000 units were started into production during the month. There were 16,000 units in the ending work in process inventory of the Welding Department that were 20% complete with respect to conversion costs. A total of $284,160 in conversion costs were incurred in the department during the month.The cost per equivalent unit for conversion costs is closest to:
A. $5.167 B. $5.800 C. $5.550 D. $4.608