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Exam PL-300 topic 2 question 87 discussion

Actual exam question from Microsoft's PL-300
Question #: 87
Topic #: 2
[All PL-300 Questions]

DRAG DROP
-

You use Power Query Editor to import three tables named Customers, Address, and Country.

In the source system, not every customer has a related address, but every address has a related country.

You need to merge all the tables into a single query. The solution must optimize query refresh performance.

Which type of join should you use for each merge operation? To answer, drag the appropriate join types to the correct operations. Each join type may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.

NOTE: Each correct selection is worth one point.

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Endeetheanalyst
Highly Voted 2 months, 2 weeks ago
This should be left outer join, since the customer table is on the left side.
upvoted 11 times
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rcaliandro
Highly Voted 2 months, 2 weeks ago
In my opinion it is wrong, it should be: Left outer, inner join
upvoted 8 times
rcaliandro
2 months, 2 weeks ago
what do you think guys?
upvoted 1 times
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jaume
Most Recent 1 day, 10 hours ago
to link customers with address we should use LEFT INNER to ensure we are getting all customers (from the left table) and matching addresses (every customer has a related address). Since LEFT INNER is not available, we should use the "opposite" which is RIGHT OUTER. Then, each address has a related country, we can use the INNER join
upvoted 1 times
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LuluSkyy
1 month, 1 week ago
I think the answer should be left outer since the customer table is on the left. so we should be all the records on the left table and the matching records on the right table.
upvoted 2 times
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VladStan
1 month, 2 weeks ago
Left outer, Inner
upvoted 1 times
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f07fa5c
1 month, 2 weeks ago
Left outer, Inner
upvoted 1 times
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Jayaruwan
2 months, 1 week ago
My previous comment is wrong. I am sorry it is left outer and inner
upvoted 3 times
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Jayaruwan
2 months, 2 weeks ago
Right outer is correct because some customers have no address
upvoted 4 times
Arth_1111
2 months, 1 week ago
Left outer join is correct because we cant ignore the customers who does not have a address. Left table (Customers) should be included. 1. Left Outer Join 2. Inner Join
upvoted 6 times
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