Register
Which of the following is true about a key? It may be non-unique. It may be unique. It can only identify one row. Both A and B None of the above
116,074 views
41 votes
41 votes
Which of the following is true about a key?

It may be non-unique.
It may be unique.
It can only identify one row.
Both A and B
None of the above

User Vitule
by
2.9k points

1 Answer

21 votes
21 votes

Answer:

It may be non-unique

Step-by-step explanation:

User Witzar
by
2.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

1.6m questions

2.0m answers

Other Questions

What is ventilation system on a boat for
True or false: The maximum tensile force a solid, cylindrical wire can withstand increases as the thickness of the wire increases. True False
Consider the following chain-reaction mechanism for the high-temperatureformation of nitric oxide, i.e., the Zeldovich mechanism: O + N2------ NO + N Reaction 1 N + O2------ NO + O Reaction 2 A. Write
Christopher has designed a fluid power system that repeatedly gets clogs. Which of the following objects should he choose to add to his fluid power system to prevent these clogs in the future? filter pipe
Indicate the specific way that each of the transistor terminals have to be connected in the circuit​
Link Copied!