Home / Questions / Which of the following statements concerning the primary key is true? (a) All primary ke
Which of the following statements concerning the primary key is true?
(a) All primary key entries are unique
(b) The primary key may be null
(c) The primary key is not required for all tables
(d) The primary key data does not have to be unique
(e) For every primary key there must be a foreign key.
Dec 27 2017 View more View Less
Suppose a particular model of car contains $17.500 worth of raw materials and requires $15,000 worth of labor to produce. This car sells for $35.000. Which dollar amount ...
May 12 2021Wrongful Interference.Roban Electronics, a software manufacturer and one of CompTac's major competitors, has been trying to convince one of CompTac's key employees, Jim B...
Jul 30 2021I added aquestionas imagesQ1.: What are the quartiles for the following set of numbers?Q2 What are the quartiles for the following set of numbers?Q3. What is the interqua...
Apr 06 2020How can the results in s2.3 be used to estimate the time required for a liquid to drain out of a vertical tube that is open at both ends? Contrast the radial dependence o...
Aug 06 2020Consider an investor who, on January 1, 2016, purchases a TIPS bond with an original principal of $104,000, an 10 percent annual (or 5 percent semiannual) coupon rate, an...
Apr 11 2020On May 1, 2015, a company lends $100,000 to one of its main suppliers and accepts a month, 6% note. Record the acceptance of the note on May 1, 2015, the adjustment on De...
Jan 27 2020The liquid substances mercury (density = 13.6 g/mL), water (1.00 g/mL), and cyclohexane (0.778 g/mL) do not form a solution when mixed but separate in distinct layers. Sk...
Aug 21 2021What is the resolution to this story? A. Rita gets an idea. B. Rita puts food coloring into the sink. C. Molly asks if she can wash her face. D. Molly falls asleep and Ri...
Nov 26 2019Under the accrual method of accounting, the allowance method is generally required for financial reporting purposes.32) When it is possible to make a reasonable estimate ...
Dec 07 2019Describe how you could use operations security in your current jobIf you are currently unemployed, define the job you are looking to apply for and how you would use opera...
Apr 15 2020