When writing SQL, you cannot use a renamed field in the ________ clause. You must use the original field name

As condition variables contain_________ , condition variables provide acquire and release methods.

a) underlying semaphores. b) underlying locks. c) threads. d) None of the above.

In the expression ____, the address in pt is incremented before the hours member is accessed.

a. ++pt->hours b. (++pt)->hours c. ++pt->(hours) d. ++(pt->hours)