The status updates you post are displayed on the home pages of your LinkedIn connections
Indicate whether the statement is true or false
TRUE
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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) ?
The ________ function converts a vertical range of cells to a horizontal range, or vice versa
Fill in the blank(s) with the appropriate word(s).
Which of the following is used to perform a SQL injection exploit?
a. Absinthe b. Amap c. SuperScan d. ObiWan
If the last octet of a Class C IP address consists of all zeroes, you are looking at the __________________.
Fill in the blank(s) with the appropriate word(s).