List two of a potential key's most important characteristics.

What distinguishes a primary key from a candidate key or a superkey?

Help me respond to this message please The Goal Seek Excel function which is also known as the "What-If Analysis", is a tool that It allows you to see the effects of a change without changing the actual data. What-If Analysis is one of Excel's most useful tools, but it's also one of its most misunderstood. What-If Analysis, in its most basic form, allows the user to interact with various scenarios and identify a variety of possible outcomes. The What-If Analysis tool is extremely effective for financial modeling sensitivity analysis. To use the What-If Analysis, go to the Data tab and click on the What-If Analysis. Then select Goal Seek and you will see a small box that has "set cell", "to value", and "by changing cell". You will enter the cell with the formula in set cell, the formula result that you are trying to achieve in to value, and the reference of the input cell that you want to adjust in by changing cell. An example will be if we sell 100 shoes at $29 each, the total should…

What is the meaning of the primary key?