Which of the following statements is not true for primary keys in a relational database system?
A) They can be used to create relationships between tables.
B) They must contain numeric data.
C) They uniquely identify a row in a table.
D) They can be part of relational integrity constraints.
B
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An alternative under consideration involves incurring $50 in costs to generate $60 in revenue. The differential revenue for this alternative is $10.
Answer the following statement true (T) or false (F)
The statement of retained earnings discloses the dividends declared during the period
Indicate whether the statement is true or false
Flexibility in the production process suggests that ______.
A. the production process should allow for low volumes of production, high product variety, and low cost B. the production process should allow for high volumes of production, low product variety, and high cost C. the production process should allow for high volumes of production, high product variety, and high cost D. the production process should allow for low volumes of production, low product variety, and high cost
The formula for the expected duration of an activity under these circumstances is ______.
a. (a + 4m + b)/6 b. (a + 2m + b)/6 c. (a + 4m + b)/3 d. (a + 2m + b)/3