Use tuple relational calculus for the following problems Relational Model Motel(mID, mName, city) Guest(gNum, gName, gAddress)...

Use tuple relational calculus for the following problems

Relational Model

Motel(mID, mName, city)

Guest(gNum, gName, gAddress)

Room(mID, roomNum, price)

Books(gId, mId, roomNum, startDate, endDate)

1.

a)Select motels with at least 1 room with price > $500.

b) Select the motel that has the most inexpensive room.

c) Select guests who've booked a room in every motel.

Expert Solution

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venereology answered 1 year ago

Relational Model Motel(mID, mName, city) Guest(gID, gName, address) Room(mID, roomNum, price) Books(gID, mID, roomNum, startDate, endDate)...

Relational Model Motel(mID, mName, city) Guest(gID, gName, address) Room(mID, roomNum, price) Books(gID, mID, roomNum, startDate, endDate) Using sqlite3, write the following query (remember there is no direct way to express division in SQL) Select guests who have booked a room in every motel

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