__________ is the time required to execute the task to completion.
A) ?Processing time ?
B) ?Priority time
C) ?Resource time ?
D) ?Ready time
A) ?Processing time
Computer Science & Information Technology
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In a DTD, a ____ symbol specifies the number of occurrences of each element.
A. specifying B. quantifier C. count D. modifying
Computer Science & Information Technology
Provide the equivalent tuple relational calculus and domain relational calculus expressions for each of the relational algebra queries given in Exercise 4.8.
a) ?hotelNo (?price ? 50 (Room) ) b) ?Hotel.hotelNo ? Room.hotelNo(Hotel ? Room) c) ?hotelName (Hotel Hotel.hotelNo ? Room.hotelNo (?price ? 50 (Room)) ) d) Guest (?dateTo ? ‘1-Jan-2007’ (Booking)) e) Hotel Hotel.hotelNo ? Room.hotelNo (?price ? 50 (Room)) ) f) ?guestName, hotelNo (Booking Booking.guestNo ? Guest.guestNo Guest) ?
Computer Science & Information Technology