q3-  Which of the following is NOT correct when referring to a primary key a. Changes over time b. Unique c. Cannot be null d. Non-repeating Clear my choice

The following query needs some consideration: "What does this statement mean?" Can you please let me know whether the following statement about the subject of software engineering is true?

. Write a stored procedure named printOrderFreights(). The printOrderFreights()procedure should use cursor processing to find those orders whose freight is less than or equal to 0.2 and then print the “Freight is less than or equal to $0.2” message for each and every row that satisfies the condition. Hint: You need to use cursor processing for this stored procedure. Hint: Follow the 5 steps of cursor processing and declare any variables needed.

Select the correct option for the question shown below.

One of the components of a composite primary key might be a candidate key. What would you do if you found out this?