Consider an instance of the relation Foo. Below, we ask you to write three create table statements. Each create table statement must define a primary key. Foo (A, B, C, D) A B C D 1 Ann 23 3 2 Bob 23 4 3 Joe 20 3 4 Bob 20 4 (a) Write two different create table statements for which the instance of Foo is legal. Note that taking the first statement and simply reordering columns does not give a different create table statement.

Corey set up his presentation for delivery to his team.the information he had to convey was critical to their job performance.he knew he would need a lot of time to explain each point

Technician a says that a dry sump system uses no oil storage sump under the engine. technician b says that a wet sump system uses no oil storage sump under the engine. who is correct?

Perform the following tasks: a. create a class named testclass that holds a single private integer field and a public constructor. the only statement in the constructor is one that displays the message “constructing”. write a main()function that instantiates one object of the testclass. save the file as testclass.cpp in the chapter 08 folder. run the program and observe the results. b. write another main()function that instantiates an array of 10 testclass objects. save the file as test class array.c . run this program and observe the results.