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Answer the following statement true (T) or false (F)


True

Computer Science & Information Technology

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Calculate the cardinality and minimum cost for each of the following Join operations:

? a hash index with no overflow on the primary key attributes, roomNo/hotelNo in Room; ? a clustering index on the foreign key attribute hotelNo in Room; ? a B + -tree index on the price attribute in Room; ? a secondary index on the attribute type in Room. nTuples(Room) = 10000 bFactor(Room) = 200 nTuples(Hotel) = 50 bFactor(Hotel) = 40 nTuples(Booking) = 100000 bFactor(Booking) = 60 nDistinct hotelNo (Room) = 50 nDistinct type (Room) = 10 nDistinct price (Room) = 500 min price (Room) = 200 max price (Room) = 50 nLevels hotelNo (I) = 2 nLevels type (I) = 2 nLevels price (I) = 2 nLfBlocks price (I) = 50 J1: Hotel hotelNo Room Assume nBuffer = 100 J2: Hotel hotelNo Booking J3: Room roomNo Booking J4: Room hotelNo Hotel J6: Booking roomNo Room

Computer Science & Information Technology

The Report Wizard opens the new Report in ________ when the user finishes the wizard

Fill in the blank(s) with correct word

Computer Science & Information Technology

In an elastic layout, the column widths are determined using ____ values.

A. resolution B. em C. pixel D. percentage

Computer Science & Information Technology

You can format multiple rows or columns simultaneously

Indicate whether the statement is true or false

Computer Science & Information Technology