The _____ function key repeats the last formatting action.?
A. ?F2
B. ?F3
C. ?F4
D. ?F5
Answer: C
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Method reduce’s first argument is formally called a(n) ________ value—a value that, when combined with any stream element using the IntBinaryOperator produces that element’s original value.
a. original b. identity c. preserve d. self
Provide the equivalent domain relational calculus and relational algebra expressions for each of the tuple relational calculus expressions given in Exercise 4.10.
(a) {H.hotelName | Hotel(H) ? H.city = ‘London’} (b) {H.hotelName | Hotel(H) ? (?R) (Room(R) ? H.hotelNo ? R.hotelNo?? R.price ? 50)} (c) {H.hotelName | Hotel(H) ? (?B) (?G) (Booking(B) ? Guest(G) ? H.hotelNo ? B.hotelNo?? B.guestNo = G.guestNo ?? G.guestName = ‘John Smith’)} (d) {H.hotelName, G.guestName, B1.dateFrom, B2.dateFrom | Hotel(H) ? Guest(G) ? Booking(B1) ? Booking(B2) ? H.hotelNo ? B1.hotelNo?? G.guestNo = B1.guestNo ?? B2.hotelNo = B1.hotelNo ? B2.guestNo = B1.guestNo ?? B2.dateFrom ? B1.dateFrom}
The hard disk ________ sends a signal to the drive when information stored on the hard drive has been requested
Fill in the blank(s) with correct word
Developers tend to like
a. polished visual design. b. complexity. c. things that inspire people to purchase the product.