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Querying Microsoft SQL Server 2012/2014: https://www.microsoft.com/en-us/learning/exam-70-461.aspx
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New Release Microsoft 70-487 Dumps Study Guide
please look below:
QUESTION 1
You use a Microsoft SQL Server 2012 database.
You need to create an indexed view within the database for a report that displays Customer Name and the total revenue
for that customer.
Which four T-SQL statements should you use? (To answer, move the appropriate SQL statements from the list of
statements to the answer area and arrange them in the correct order.)
Select and Place:
Correct Answer:
QUESTION 2
You need to create a stored procedure that enters values into multiple tables. The solution must ensure that if a single
insert fails, none of the values are inserted into the tables.
How should you complete the stored procedure? To answer, drag the appropriate values to the correct locations. Each
value 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.
Select and Place:
Box 1: BEGIN TRY Box 2:SAVE TRANSACTION Box 3: ROLLBACK Box 4: COMMIT TRANSACTION
References:https://msdn.microsoft.com/en-us/library/ms188378.asp
QUESTION 3
You\\’ve created a standard stored procedure that\\’s not a CLR procedure. This procedure has several parameters,
some of which are output parameters. Which of the following CANNOT be passed back as an output parameter from a
stored procedure?
A. Text
B. image
C. Ntext
D. Any of these
Correct Answer: D
Unless you create a CLR procedure, you can use these data types are return values.
QUESTION 4
You use Microsoft SQL Server 2012 to write code for a transaction that contains several statements. There is high
contention between readers and writers on several tables used by your transaction. You need to minimize the use of the
tempdb space. You also need to prevent reading queries from blocking writing queries. Which isolation level should you
use?
A. SERIALIZABLE
B. SNAPSHOT
C. READ COMMITTED SNAPSHOT
D. REPEATABLE READ
Correct Answer: C
1.”There is high contention between readers and writers”
SNAPSHOT and RED COMMITTED SNAPSHOT will not apply share locks so minimize the contention.
https://msdn.microsoft.com/en-us/library/ms173763.aspx
2.”need to minimize the use of the tempdb space”
RED COMMITTED SNAPSHOT uses less tempdb space.
https://msdn.microsoft.com/en-us/library/ms378149(v=sql.110).aspx So the answer is RED COMMITTED SNAPSHOT
QUESTION 5
What is missing from the T-SQL statement below for creating and using a cursor? DECLARE mycursor CURSOR FOR
SELECT * FROM Vendor FETCH NEXT FROM mycursor;
A. KEYSET
B. OPEN
C. STATIC
D. SCROLL
Correct Answer: B
You need to open the CURSOR before you can call FETCH.
QUESTION 6
You are the database administrator of a SQL Server 2012 database infrastructure at ABC.com.
You need to optimize a very large database table that contains several million rows of data by designing a view based
on the table. The view must allow users to perform aggregations on several columns.
How should you configure the view to ensure optimal performance?
A. You should create the view as an indexed view.
B. You should create a clustered index on the view.
C. You should make use of a stored procedure to return that data.
D. You should make use of a table-valued function.
Correct Answer: A
QUESTION 7
You work as a SQL Server 2012 database developer at ABC.com. You are developing a query for a database driven
Web application that allows visitors to vote for the cricket player of the week. The number of votes is stored in a table
named
WeeklyVotes that has columns named Week, PlayerName, Votes.
You need to write a Transact-SQL query that ranks the top 30 cricket players by the average votes over the last 12
months. You want the top 10 cricket players to have a rank of 1, the next 10 to have a rank of 2, and the last 10 to have
a rank
of 3.
Which of the following SELECT statement would you use? To answer, type the correct code in the answer area.
A. check the answer in explanation.
Correct Answer: A
SELECT TOP 30 PlayerName, NTILE (3) OVER (ORDER BY AVG (Votes) DESC) AS AveVotes FROM WeeklyVotes
GROUP BY PlayerName
QUESTION 8
You work as a SQL Server 2012 database developer at ABC.com.
ABC.com has a database SalesDB with a large Orders table. You create a heap named OldData that will store historical
data from the Orders table.
You need to write a Transact-SQL query that will insert rows of data from the Orders table that are marked as closed
and are more than six months old.
Which of the following table hints should you use in your query if you want to optimize transaction logging and locking
for the query?
A. You should make use of the READPAST hint.
B. You should make use of the HOLDLOCK hint.
C. You should make use of the READCOMMITTED hint.
D. You should make use of the NOLOCK hint.
E. You should make use of the TABLOCK hint.
F. You should make use of the UPDLOCK hint.
Correct Answer: E
QUESTION 9
Which of the following statements are true about an INSTEAD OF trigger? (Choose all that apply.)
A. INSTEAD OF triggers can be created on views.
B. INSTEAD OF triggers execute instead of AFTER triggers.
C. INSTEAD OF triggers can only be declared for UPDATE statements.
D. INSTEAD OF triggers execute code in place of the original DML statement
Correct Answer: AD
QUESTION 10
Your database contains a table named Purchases. The table includes a DATETIME column named PurchaseTime that
stores the date and time each purchase is made. There is a non-clustered index on the PurchaseTime column. The
business team wants a report that displays the total number of purchases made on the current day. You need to write a
query that will return the correct results in the most efficient manner. Which Transact-SQL query should you use?
A. SELECT COUNT(*)FROM Purchases WHERE PurchaseTime = CONVERT(DATE, GETDATE())
B. SELECT COUNT(*)FROM Purchases WHERE PurchaseTime = GETDATE()
C. SELECT COUNT(*)FROM Purchases WHERE CONVERT(VARCHAR, PurchaseTime, 112) =
CONVERT(VARCHAR, GETDATE(), 112)
D. SELECT COUNT(*)FROM Purchases WHERE PurchaseTime >= CONVERT(DATE, GETDATE()) AND
PurchaseTime
Correct Answer: D
http://technet.microsoft.com/en-us/libr ary/ms181034.aspx
QUESTION 11
You develop a Microsoft SQL Server 2012 database. You need to create and call a stored procedure that meets the
following requirements:
-Accepts a single input parameter for CustomerID.
–
Returns a single integer to the calling application.
Which Transact-SQL statement or statements should you use? (Each correct answer presents part of the solution.
Choose all that apply.)
A.Option A
B.Option B
C.Option C
D.Option D
E.Option E
F.Option F
Correct Answer: AE
QUESTION 12
You are designing an order entry system that uses an SQL Server database. The database includes the following
tables:
You need to ensure that Orders are added to the Orders table only for customers that have an account balance of zero.
How should you complete the relevant Transact-SQL statement? To answer, select the correct Transact-SQL statement
from each list in the answer area.
Hot Area:
Correct Answer:
The Transact SQL CREATE TRIGGER command creates a DML, DDL, or logon trigger. A trigger is a special kind of
stored procedure that automatically executes when an event occurs in the database server. DML triggers execute when
a
user tries to modify data through a data manipulation language (DML) event. DML events are INSERT, UPDATE, or
DELETE statements on a table or view. These triggers fire when any valid event is fired, regardless of whether or not
any
table rows are affected.
Partial syntax is:
CREATE TRIGGER [ schema_name . ]trigger_name
ON { table | view }
[ WITH [ ,…n ] ]
{ FOR | AFTER | INSTEAD OF }
{ [ INSERT ] [ , ] [ UPDATE ] [ , ] [ DELETE ] }
QUESTION 13
You use Microsoft SQL Server 2012 to develop a database application.
Your application sends data to an NVARCHAR(MAX) variable named @var.
You need to write a Transact-SQL statement that will find out the success of a cast to a decimal (36,9).
Which code segment should you use?
A. BEGIN TRY SELECT convert (decimal(36,9), @var) as Value, \\’True\\’ As BadCast END TRY BEGIN CATCH
SELECT convert (decimal(36,9), @var) as Value, \\’False\\’ As BadCast END CATCH
B. TRY( SELECT convert (decimal(36,9), @var) SELECT \\’True\\’ As BadCast ) CATCH( SELECT \\’False\\’ As
BadCast )
C. SELECT CASE WHEN convert (decimal(36,9), @var) IS NULL THEN \\’True\\’ ELSE \\’False\\’ END AS BadCast
D. SELECT IF(TRY_PARSE(@var AS decimal(36,9)) IS NULL, \\’True\\’, \\’False\\’ ) AS BadCast
Correct Answer: D
Reference: http://msdn.microsoft.com/en-us/library/hh213126.aspx
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