Given the following database schema, write relational algebra (not SQL) expressions for the questions below: Manufacturer (Manufacturer_id, name, address) Produced(Manufacturer_id, Part_id, Quantity) Part(Part_id, name, price) 1. List names of manufacturers and the names of the parts they produced. 2. List the name of each manufacturer who produced all parts that are recorded in the Part relation. 3. List the names of each part when a number of 50 or more of that parts are produced. Note that this quantity can be produced by one manufacturer of more. 4. List the names of manufacturers who live in "Hebron".
Given the following database schema, write relational algebra (not SQL) expressions for the questions below: Manufacturer (Manufacturer_id, name, address) Produced(Manufacturer_id, Part_id, Quantity) Part(Part_id, name, price) 1. List names of manufacturers and the names of the parts they produced. 2. List the name of each manufacturer who produced all parts that are recorded in the Part relation. 3. List the names of each part when a number of 50 or more of that parts are produced. Note that this quantity can be produced by one manufacturer of more. 4. List the names of manufacturers who live in "Hebron".
Chapter2: Database Design Fundamentals
Section: Chapter Questions
Problem 3TD
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Transcribed Image Text:Given the following database schema, write relational algebra (not SQL)
expressions for the questions below:
Manufacturer (Manufacturer_id, name, address)
Produced(Manufacturer_id, Part_id, Quantity)
Part(Part_id, name, price)
1. List names of manufacturers and the names of the parts they produced.
2. List the name of each manufacturer who produced all parts that are recorded in
the Part relation.
3. List the names of each part when a number of 50 or more of that parts are
produced. Note that this quantity can be produced by one manufacturer of
more.
4. List the names of manufacturers who live in "Hebron".
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