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STatiana [176]
3 years ago
11

Consider the following schema:Suppliers (sid: integer, sname: varchar, address: varchar)Parts (pid: integer, pname: varchar, col

or: varchar)Catalog (sid: integer, pid: integer, cost: real)Where sid is the supplier’s id (primary key in Suppliers), pid is the part’s id (primary key in Parts), and sid together with pid is the primary key of Catalog. The Catalog relation lists the prices charged for parts by Suppliers.A) Write the following queries using relational algebra:5 Find the sids of suppliers who supply every part6. Find the sids of suppliers who supply every red part7. Find the sids of suppliers who supply every red or green part.8. Find the sids of suppliers who supply every red part or supply every green part
Engineering
1 answer:
Contact [7]3 years ago
6 0

Answer:

umm lemme check

Explanation:

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a_sh-v [17]

Complete Question

The complete question is shown on the first uploaded image.

Answer:

The answer is shown on the second uploaded image

Explanation:

The explanation is also shown on the second uploaded image

3 0
3 years ago
A list is sorted in ascending order if it is empty or each item except the last one is less than or equal to its successor. HERE
Free_Kalibri [48]

Using the knowledge of computational language in python it is possible to write a code that writes a list and defines the arrange.

<h3>Writing code in python:</h3>

<em>def isSorted(lyst):</em>

<em>if len(lyst) >= 0 and len(lyst) < 2:</em>

<em>return True</em>

<em>else:</em>

<em>for i in range(len(lyst)-1):</em>

<em>if lyst[i] > lyst[i+1]:</em>

<em>return False</em>

<em>return True</em>

<em>def main():</em>

<em>lyst = []</em>

<em>print(isSorted(lyst))</em>

<em>lyst = [1]</em>

<em>print(isSorted(lyst))</em>

<em>lyst = list(range(10))</em>

<em>print(isSorted(lyst))</em>

<em>lyst[9] = 3</em>

<em>print(isSorted(lyst))</em>

<em>main()</em>

See more about python at brainly.com/question/18502436

#SPJ1

7 0
2 years ago
In the LC-3 data path, the output of the address adder goes to both the MARMUX and the PCMUX, potentially causing two very diffe
dangina [55]

Answer:

no need for that

Explanation:

they are not the same at all

3 0
3 years ago
Even though the content of many alcohol blends doesn’t affect engine drive ability using gasoline with alcohol in warm weather m
Alchen [17]
Even though the content of many alcohol blends doesn't affect engine driveability, using gasoline with alcohol in warm weather may cause: decrease in fuel economy.

Mark brainliest
s
3 0
2 years ago
Why does a foil airplane fly farther than a paper one?
Free_Kalibri [48]

Answer:

the reason paper airplanes fly is because of lift the foil has no lift

Explanation:

5 0
3 years ago
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