Which of the following statements about substitution variables is incorrect?
a. They allow you to add records to a table without issuing the same command again and again
b. A substitution variable is identified by an ampersand and the variable name.
c. When Oracle10g executes a command with a substitution variable, it will prompt the user to enter a value.
d. The command SET VERIFY OFF will delete all values stored in substitution variables.
d
Business
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Which of the following best describes the pricing objective typically used by regulated utilities such as gas and electricity?
A) penetration pricing B) skimming C) investment pricing D) competitive pricing
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Neither of the choices ________ attractive to the group of workers that ________ on strike
A) are/is B) is/are C) are/are D) is/is
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