The database product INGRES originally used a database language called what?

Why is it best not to start cleaning a computer by using compressed air?

A) Some people may be sensitive to the dust blown into the air. B) Pressure may damage the fragile electronic equipment. C) Heavy dirt can't be moved by the compressed air. D) The turbulence from the compressed air causes an RFI disturbance.

Let modify be a public member function for the class USStates which modifies the attributes of one object of the class. To change the ith object of the class requires the following call to modify:

a. modify (USStates); b. modify (USStates[i]); c. modify (stateArr); d. stateArr.modify (USStates[i]; e. stateArr[i].modify ( );