Free Lead2pass Microsoft 70-457 PDF Dumps With The Latest Update Exam Questions (31-40)

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QUESTION 31
You are developing a database that will contain price information.
You need to store the prices that include a fixed precision and a scale of six digits.
Which data type should you use?

A.    Float
B.    Money
C.    Smallmoney
D.    Numeric

Answer: D

QUESTION 32
You administer a Microsoft SQL Server database that supports a banking transaction management application.
You need to retrieve a list of account holders who live in cities that do not have a branch location. Which Transact-SQL query or queries should you use? (Each correct answer presents a complete solution. Choose all that apply.)

A.    SELECT AccountHolderID
    FROM AccouritHolder
    WHERE CityID NOT IN (SELECT CityID FROM BranchMaster)
B.    SELECT AccountHolderID
    FROM AccountHolder
    WHERE CityID <> ALL (SELECT CityID FROM BranchMaster)
C.    SELECT AccountHolderlD
    FROM AccouncHolder
    WHERE CityID <> SOME (SELECT CityID FROM BranchMaster]
D.    SELECT AccountHolderID
    FROM AccountHolder
    WHERE CityID <> ANY (SELECT CityID FROM BranchMaster)

Answer: AB

QUESTION 33
You administer a Microsoft SQL Server 2012 database. The database contains a table named Employee. Part of the Employee table is shown in the exhibit. (Click the Exhibit button.)

Confidential information about the employees is stored in a separate table named EmployeeData. One record exists within EmployeeData for each record in the Employee table.
You need to assign the appropriate constraints and table properties to ensure data integrity and visibility. On which column in the Employee table should you a create a unique constraint?

A.    DateHired
B.    DepartmentID
C.    EmployeelD
D.    EmployeeNum
E.    FirstName
F.    JobTitle
G.    LastName
H.    MiddleName
I.    ReportsToID

Answer: D

QUESTION 34
You administer a Microsoft SQL Server 2012 database. The database contains a table named Employee. Part of the Employee table is shown in the exhibit. (Click the Exhibit button.)

Confidential information about the employees is stored in a separate table named EmployeeData. One record exists within EmployeeData for each record in the Employee table.
You need to assign the appropriate constraints and table properties to ensure data integrity and visibility. On which column in the Employee table should you use an identity specification to include a seed of 1,000 and an increment of 1?

A.    DateHired
B.    DepartmentID
C.    EmployeeID
D.    EmployeeNum
E.    FirstName
F.    JobTitle
G.    LastName
H.    MiddleName
I.    ReportsToID

Answer: C

QUESTION 35
You administer a Microsoft SQL Server 2012 database that includes a table named Products. The Products table has columns named Productld, ProductName, and CreatedDateTime.
The table contains a unique constraint on the combination of ProductName and CreatedDateTime. You need to modify the Products table to meet the following requirements:

– Remove all duplicates of the Products table based on the ProductName column.
– Retain only the newest Products row.

Which Transact-SQL query should you use?

A.    WITH CTEDupRecords
    AS
    (
      SELECT MAX(CreatedDateTime) AS CreatedDateTime, ProductName
      FROM Products
      GROUP BY ProductName
      HAVING COUNT(*) > 1
    )
    DELETE p
    FROM Products p
    JOIN CTEDupRecords cte ON
    p.ProductName = cte.ProductName
    AND p.CreatedDateTime > cte.CreatedDateTime
B.    WITH CTEDupRecords
    AS
    (
      SELECT MAX(CreatedDateTime) AS CreatedDateTime, ProductName
      FROM Products
      GROUP BY ProductName
      HAVING COUNT(*) > 1
    )
    DELETE p
    FROM Products p
    JOIN CTEDupRecords cte ON
    cte.ProductName = p.ProductName
    AND cte.CreatedDateTime > p.CreatedDateTime
C.    WITH CTEDupRecords
    AS
    (
      SELECT MIN(CreatedDateTime) AS CreatedDateTime, ProductName
      FROM Products
      GROUP BY ProductName
    )
    DELETE p
    FROM Products p
    JOIN CTEDupRecords cte ON
    p.ProductName = cte.ProductName
D.    WITH CTEDupRecords
    AS
    (
      SELECT MAX(CreatedDateTime) AS CreatedDateTime, ProductName
      FROM Products
      GROUP BY ProductName
      HAVING COUNT(*) > 1
    )
    DELETE p
    FROM Products p
    JOIN CTEDupRecords cte ON
    p.ProductName = cte.ProductName

Answer: B

QUESTION 36
You develop three Microsoft SQL Server 2012 databases named Database1, Database2, and Database3.
You have permissions on both Database1 and Database2.
You plan to write and deploy a stored procedure named dbo.usp_InsertEvent in Database3. dbo.usp_InsertEvent must execute other stored procedures in the other databases.
You need to ensure that callers that do not have permissions on Database1 or Database2 can execute the stored procedure.
Which Transact-SQL statement should you use?

A.    USE Database2
B.    EXECUTE AS OWNER
C.    USE Database1
D.    EXECUTE AS CALLER

Answer: B

QUESTION 37
You administer a Microsoft SQL Server 2012 database that has multiple tables in the Sales schema.
Some users must be prevented from deleting records in any of the tables in the Sales schema.
You need to manage users who are prevented from deleting records in the Sales schema.
You need to achieve this goal by using the minimum amount of administrative effort.
What should you do?

A.    Create a custom database role that includes the users. Deny Delete permissions on the Sales schema for the custom database role.
B.    Include the Sales schema as an owned schema for the db_denydatawriter role. Add the users to the db_denydatawriter role.
C.    Deny Delete permissions on each table in the Sales schema for each user.
D.    Create a custom database role that includes the users.
Deny Delete permissions on each table in the Sales schema for the custom database role.

Answer: A

QUESTION 38
You administer a Microsoft SQL Server 2012 database.
The database contains a Product table created by using the following definition:

You need to ensure that the minimum amount of disk space is used to store the data in the Product table.
What should you do?

A.    Convert all indexes to Column Store indexes.
B.    Implement Unicode Compression.
C.    Implement row-level compression.
D.    Implement page-level compression.

Answer: D

QUESTION 39
You generate a daily report according to the following query:

You need to improve the performance of the query.
What should you do?

A.    Option A
B.    Option B
C.    Option C
D.    Option D

Answer: A

QUESTION 40
You administer a Microsoft SQL Server 2012 database named ContosoDb.
Tables are defined as shown in the exhibit. (Click the Exhibit button.)

You need to display rows from the Orders table for the Customers row having the CustomerId value set to 1 in the following XML format:
<row OrderId="1" OrderDate="2000-01-01T00:00:00" Amount="3400.00" Name="Customer A" Country="Australia" /><row
OrderId="2" OrderDate="2001-01-01T00:00:00" Amount="4300.00" Name="Customer A" Country="Australia" />
Which Transact-SQL query should you use?

A.    SELECT OrderId, OrderDate, Amount, Name, Country
    FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId
    WHERE Customers.CustomerId = 1
    FOR XML RAW
B.    SELECT OrderId, OrderDate, Amount, Name, Country
    FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId
    WHERE Customers.CustomerId = 1
    FOR XML RAW, ELEMENTS
C.    SELECT OrderId, OrderDate, Amount, Name, Country
    FROM Orders INNER JOIN Customers ON Orders.CustomerId = Customers.CustomerId
    WHERE Customers.CustomerId = 1
    FOR XML AUTO
D.    SELECT OrderId, OrderDate, Amount, Name, Country
    FROM Orders INNER JOIN Customers ON Orders.CustomerId – Customers.CustomerId
    WHERE Customers.CustomerId= 1
    FOR XML AUTO, ELEMENTS
E.    SELECT Name, Country, OrderId, OrderDate, Amount
    FROM Orders INNER JOIN Customers ON Orders.CustomerId=Customers.CustomerId
    WHERE Customers.CustomerId- 1
    FOR XML AUTO
F.    SELECT Name, Country, Orderld, OrderDate, Amount
    FROM Orders INNER JOIN Customers ON Orders.CustomerId=Customers.CustomerId
    WHERE Customers.CustomerId= 1
    FOR XML AUTO, ELEMENTS
G.    SELECT Name AS ‘@Name’, Country AS ‘@Country’, OrderId, OrderDate, Amount
    FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId
    WHERE Customers.CustomerId= 1
    FOR XML PATH (‘Customers’)
H.    SELECT Name AS ‘Customers/Name’, Country AS ‘Customers/Country’, OrderId,OrderDate, Amount
    FROM Orders INNER JOIN Customers ON Orders.CustomerId= Customers.CustomerId
    WHERE Customers.CustomerId= 1
    FOR XML PATH (‘Customers’)

Answer: A

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