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Microsoft 70-457 Exam Syllabus Topics:

Microsoft Transition Your MCTS on SQL Server 2008 to MCSA: SQL Server 2012, Part 1 Sample Questions:

1. You administer a database that includes a table named Customers that contains more than 750 rows. You create a new column named PartitionNumber of the int type in the table. You need to assign a PartitionNumber for each record in the Customers table. You also need to ensure that the PartitionNumber satisfies the following conditions:
Always starts with 1.
Starts again from 1 after it reaches 100. Which Transact-SQL statement should you use?

A) CREATE SEQUENCE CustomerSequence AS int START WITH 0 INCREMENT BY 1 MINVALUE 1 MAXVALUE 100 UPDATE Customers SET PartitionNumber = NEXT VALUE FOR CustomerSequence DROP SEQUENCE CustomerSequence
B) CREATE SEQUENCE CustomerSequence AS int START WITH 1 INCREMENT BY 1 MINVALUE 0 MAXVALUE 100 CYCLE UPTATE Customers SET PartitionNumber = NEXT VALUE FOR CustomerSequence DROP SEQUENCE CustomerSequence
C) CREATE SEQUENCE CustomerSequence AS int START WITH 1 INCREMENT BY 1 MINVALUE 1 MAXVALUE 100 CYCLE UPDATE Customers SET PartitionNumber = NEXT VALUE FOR CustomerSequence
DROP SEQUENCE CustomerSequence
D) CREATE SEQUENCE CustomerSequence AS int START WITH 1 INCREMENT BY 1 MINVALUE 1 MAXVALUE 100 UPDATE Customers SET PartitionNumber = NEXT VALUE FOR CustomerSequence + 1 DROP SEQUENCE CustomerSequence

2. You administer a Microsoft SQL Server 2012 database. The database has a table named Customers owned by UserA and another table named Orders owned by UserB. You also have a stored procedure named GetCustomerOrderInfo owned by UserB. GetCustomerOrderInfo selects data from both tables.
You create a new user named UserC. You need to ensure that UserC can call the GetCustomerOrderInfo stored procedure. You also need to assign only the minimum required permissions to UserC. Which permission or permissions should you assign to UserC? Choose all that apply.

A) The Control permission on GetCustomerOrderInfo
B) The Execute permission on GetCustomerOrderInfo
C) The Select permission on Customers
D) The Take Ownership permission on Orders
E) The Take Ownership permission on Customers
F) The Select permission on Orders

3. You develop a Microsoft SQL Server 2012 database that has two tables named SavingAccounts and LoanAccounts. Both tables have a column named AccountNumber of the nvarchar data type. You use a third table named Transactions that has columns named TransactionId, AccountNumber, Amount, and TransactionDate. You need to ensure that when multiple records are inserted in the Transactions table, only the records that have a valid AccountNumber in the SavingAccounts or LoanAccounts are inserted. Which Transact-SQL statement should you use?

A) CREATE TRIGGER TrgValidateAccountNumber ON Transactions INSTEAD OF INSERT AS BEGIN
INSERT INTO Transactions SELECT TransactionID,AccountNumber,Amount,TransactionDate FROM inserted WHERE AccountNumber IN (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) END
B) CREATE TRIGGER TrgValidateAccountNumber ON Transactions INSTEAD OF INSERT AS BEGIN
IF EXISTS (
SELECT AccountNumber FROM inserted EXCEPT
(SELECT AccountNumber FROM LoanAccounts
UNION SELECT AccountNumber FROM SavingAccounts))
BEGIN
ROLLBACK TRAN
END
END
C) CREATE TRIGGER TrgValidateAccountNumber ON Transactions FOR INSERT AS BEGIN
INSERT INTO Transactions SELECT TransactionID,AccountNumber,Amount,TransactionDate FROM inserted WHERE AccountNumber IN (SELECT AccountNumber FROM LoanAccounts UNION SELECT AccountNumber FROM SavingAccounts)) END
D) CREATE TRIGGER TrgValidateAccountNumber ON Transactions FOR INSERT AS BEGIN
IF EXISTS (
SELECT AccountNumber FROM inserted EXCEPT
(SELECT AccountNumber FROM LoanAccounts
UNION SELECT AccountNumber FROM SavingAccounts))
BEGIN
ROLLBACK TRAN
END
END

4. 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 CONVERT(VARCHAR, PurchaseTime, 112) = CONVERT(VARCHAR, GETDATE(), 112)
B) SELECT COUNT(*) FROM Purchases WHERE PurchaseTime = CONVERT(DATE, GETDATE())
C) SELECT COUNT(*) FROM Purchases WHERE PurchaseTime = GETDATE()
D) SELECT COUNT(*) FROM Purchases WHERE PurchaseTime >= CONVERT(DATE, GETDATE())
AND PurchaseTime < DATEADD(DAY, 1, CONVERT(DATE, GETDATE()))

5. 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 retrieve the students who scored the highest marks for each subject along with the marks. Which Transact-SQL query should you use?

A) 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
B) SELECT StudentCode AS Code, Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANK() OVER(PARTITION BY StudentCode ORDER BY Marks ASC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1
C) SELECT StudentCode as Code, DENSE_RANK() OVER(ORDER BY AVG(Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode
D) SELECT Id, Name, Marks, DENSE_RANK() OVER(ORDER BY Marks DESC) AS Rank FROM StudentMarks
E) 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
F) SELECT StudentCode AS Code, Marks AS Value FROM ( SELECT StudentCode, Marks AS Marks, RANXO OVER(PARTITION BY StudentCode ORDER BY Marks DESC) AS Rank
FROM StudentMarks) tmp
WHERE Rank = 1
G) SELECT StudentCode as Code, RANK() OVER(ORDER BY AVG(Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode
H) SELECT StudentCode as Code, NTILE(2) OVER(ORDER BY AVG(Marks) DESC) AS Value FROM StudentMarks GROUP BY StudentCode

Solutions: