Exam 70-767 topic 1 question 28 discussion

Actual exam question from Microsoft's 70-767

Question #: 28
Topic #: 1

Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You are a database administrator for an e-commerce company that runs an online store. The company has the databases described in the following table.

Product prices are updated and are stored in a table named Products on DB1. The Products table is deleted and refreshed each night from MDS by using a
Microsoft SQL Server Integration Services (SSIS) package. None of the data sources are sorted.
You need to update the SSIS package to add current prices to the Products table.
What should you use?

A. Lookup transformation
B. Merge transformation
C. Merge Join transformation
D. MERGE statement
E. Union All transformation
F. Balanced Data Distributor transformation
G. Sequential container
H. Foreach Loop container

Show Suggested Answer

Suggested Answer: D 🗳️
In the current release of SQL Server Integration Services, the SQL statement in an Execute SQL task can contain a MERGE statement. This MERGE statement enables you to accomplish multiple INSERT, UPDATE, and DELETE operations in a single statement.
References: https://docs.microsoft.com/en-us/sql/integration-services/control-flow/merge-in-integration-services-packages

by Yuri1101 at March 31, 2020, 12:39 a.m.

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Yuri1101

Highly Voted 5 years, 1 month ago

It should be Lookup Transformation since it is requiring update of the SSIS packages.

upvoted 9 times

MobeenAhadKhan

4 years, 10 months ago

Merge is correct as products can be discontinued/deleted

upvoted 2 times

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DudeHere

Most Recent 4 years, 6 months ago

Look up is correct. The question specifically says NONE OF THE DATA SOURCES ARE SORTED. This negates the possibility of MERGE. a merge join requires both inputs to be sorted the same way lookup does not require either input to be sorted. https://stackoverflow.com/questions/6735733/what-are-the-differences-between-merge-join-and-lookup-transformations-in-ssis#:~:text=A%20Merge%20Join%20is%20designed,work%20like%20a%20SQL%20JOIN.&text=With%20a%20Merge%20Join%20you,rows%20exist%20in%20input%202.

upvoted 3 times

kimalto452

4 years, 5 months ago

merge join requires both inputs to be sorted. THE ANSWER IS NOT merge join is SQL TASK MERGE STATEMENT

upvoted 1 times

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othman_ee

4 years, 9 months ago

It has to be a lookup as the SSIS package which takes the latest mds records need to have the correct prices.

upvoted 4 times

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Voxy