PrepAway - Latest Free Exam Questions & Answers

You need to ensure that the indexing strategy meets the requirements

You are implementing the indexing strategy for a fact table in a data warehouse. The fact
table is named Quotes. The table has no indexes and consists of seven columns:
• [ID]
• [QuoteDate]
• [Open]
• [Close]
• [High]
• [Low]
• [Volume]
Each of the following queries must be able to use a columnstore index:
• SELECT AVG ([Close]) AS [AverageClose] FROM Quotes WHERE [QuoteDate]
BETWEEN ‘20100101’ AND ‘20101231’.
• SELECT AVG([High] – [Low]) AS [AverageRange] FROM Quotes WHERE
[QuoteDate] BETWEEN ‘20100101’ AND ‘20101231’.
• SELECT SUM([Volume]) AS [SumVolume] FROM Quotes WHERE [QuoteDate]
BETWEEN ‘20100101’ AND ‘20101231’.
You need to ensure that the indexing strategy meets the requirements. The strategy must
also minimize the number and size of the indexes.
What should you do?

PrepAway - Latest Free Exam Questions & Answers

A.
Create one columnstore index that contains [ID], [Close], [High], [Low], [Volume], and
[QuoteDate].

B.
Create three coiumnstore indexes:
One containing [QuoteDate] and [Close]
One containing [QuoteDate], [High], and [Low]
One containing [QuoteDate] and [Volume]

C.
Create one columnstore index that contains [QuoteDate], [Close], [High], [Low], and
[Volume].

D.
Create two columnstore indexes:
One containing [ID], [QuoteDate], [Volume], and [Close]
One containing [ID], [QuoteDate], [High], and [Low]

Explanation:
http://msdn.microsoft.com/en-us/library/gg492088.aspx
http://msdn.microsoft.com/en-us/library/gg492153.aspx

One Comment on “You need to ensure that the indexing strategy meets the requirements


Leave a Reply