One school of thought that developers have about primary keys is to add an additional column to uniquely identify each record. Which is another school of thought? O Primary keys should not be used at all.
O A primary composite key should be used
O Find unique values already in the data O A default identifier should be created​

Write a loop that reads positive integers from standard input and that terminates when it reads an integer that is not positive. after the loop terminates, it prints out, on a line by itself and separated by spaces, the sum of all the even integers read, the sum of all the odd integers read, a count of the number of even integers read, and a count of the number of odd integers read, all separated by at least one space. declare any variables that are needed. assume the availability of a variable, stdin, that references a scanner object associated with standard input. that is, stdin = new scanner(system.in); is given.

What do character formats do for your document's message? a.set the tone b.provide organization c.provide clarity d.set how texts align with documents

Which of the following “invisible” marks represents an inserted tab?