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READ Free Dumps For Microsoft- 70-462





Question ID 18857

You administer a Microsoft SQL Server 2012 database.
The database uses SQL Server Agent jobs to perform regular FULL and LOG backups.
The database uses the FULL recovery model.
You plan to perform a bulk import of a very large text file.
You need to ensure that the following requirements are met during the bulk operation:
✑ The database transaction log is minimally affected.
✑ The database is online and all user transactions are recoverable.
✑ All transactions are fully recoverable prior to the import.
Which three actions should you perform in sequence? (To answer, move the appropriate
actions from the list of actions to the answer area and arrange them in the correct order.)

Option A

Answer :

Correct Answer A
Explanation


Question ID 18858

You create a table that has the StudentCode, SubjectCode, and Marks columns to record
mid-year marks for students. The table has marks obtained by 50 students for various
subjects.
You need to ensure that the top half of the students arranged by their average marks must
be given a rank of 1 and the remaining students must be given a rank of 2.
Which Transact-SQL query should you use?

Option A

SELECT StudentCode as Code, RANK() OVER (ORDER BY AVG (Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode

Option B

SELECT Id, Name, Marks, DENSE_RANK() OVER (ORDER BY Marks DESC) AS Rank FROM StudentMarks

Option C

SELECT StudentCode as Code, DENSE_RANK() OVER (ORDER BY AVG (Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode

Option D

SELECT StudentCode as Code, NTILE (2) OVER (ORDER BY AVG (Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode

Option E

SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER (PARTITION BY SubjectCode ORDER BY Marks ASC) AS Rank FROM StudentMarks) tmp WHERE Rank = 1

Option F

 SELECT StudentCode AS Code,Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER (PARTITION BY SubjectCode ORDER BY Marks DESC) AS Rank FROM StudentMarks) tmp WHERE Rank = 1

Correct Answer D
Explanation

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