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NEW QUESTION NO: 35
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
Multiple processes use the data from a table named Sales and place it in other databases across the organization. Some of the processes are not completely aware of the data types in the Sales table. This leads to data type conversion errors.
You need to implement a method that returns a NULL value id data conversion fails instead of throwing an error.
What should you implement?
A. the COALESCE function
B. a view
C. a table-valued function
D. the TRY_PARSE function
E. a stored procedure
F. the ISNULL function
G. a scalar function
H. the TRY_CONVERT function
Answer: H
Explanation/Reference:
Explanation:
TRY_CONVERT returns a value cast to the specified data type if the cast succeeds; otherwise, returns null.
References: https://docs.microsoft.com/en-us/sql/t-sql/functions/try-convert-transact-sql
NEW QUESTION NO: 36
You have a database that stored information about servers and application errors. The database contains the following tables.
Servers
Errors
You need to return all error log messages and the server where the error occurs most often.
Which Transact-SQL statement should you run?
A:
B:
C:
D:
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
NEW QUESTION NO: 37
You need to create a table named MiscellaneousPayment that meets the following requirements:
Which Transact-SQL statement should you run?
A. CREATE TABLE MiscellaneousPayment (Id uniqueidentifier DEFAULT NEWSEQUENTIALID() PRIMARY KEY,Reason varchar(500),Amount money)
B. CREATE TABLE MiscellaneousPayment (Id intidentify(1,1)PRIMARY KEY,Reason nvarchar (500),Amount numeric(19,4))
C. CREATE TABLE MiscellaneousPayment (Id uniqueidentifier DEFAULT NEWSEQUENTIALID() PRIMARY KEY,Reason varchar(500),Amount decimal(19,4))
D. CREATE TABLE MiscellaneousPayment (Id uniqueidentifier DEFAULT NEWID() PRIMARY KEY,Reason nvarchar(500),Amount decimal(19,4))
Answer: D
Explanation/Reference:
Incorrect Answers:
A: For column Reason we must use nvarchar, not varchar, as multilingual values must be supported.
B: We cannot use INT for the Id column as new values must be automatically generated.
C: For column Reason we must use nvarchar, not varchar, as multilingual values must be supported.
Note: Nvarchar stores UNICODE data. If you have requirements to store UNICODE or multilingual data, nvarchar is the choice. Varchar stores ASCII data and should be your data type of choice for normal use.
References: https://docs.microsoft.com/en-us/sql/t-sql/data-types/nchar-and-nvarchar-transact-sql
NEW QUESTION NO: 38
HOTSPOT
You have the following subqueries: Subquery1, Subquery2, and Subquery3.
You need to replace the three subqueries with named result sets or temporary tables. The following requirements must be met:
Which replacement techniques should you use? To answer, select the appropriate options in the answer area.
Hot Area:
Answer:
Explanation/Reference:
Explanation:
Subquery1: common table expression (CTE)
A common table expression (CTE) can be thought of as a temporary result set that is defined within the execution scope of a single SELECT, INSERT, UPDATE, DELETE, or CREATE VIEW statement. A CTE is similar to a derived table in that it is not stored as an object and lasts only for the duration of the query.
Unlike a derived table, a CTE can be self-referencing and can be referenced multiple times in the same query.
Subquery2: global temporary table
Global temporary tables are visible to any user and any connection after they are created, and are deleted when all users that are referencing the table disconnect from the instance of SQL Server.
Subquery3: local temporary table
Local temporary tables are visible only to their creators during the same connection to an instance of SQL Server as when the tables were first created or referenced. Local temporary tables are deleted after the user disconnects from the instance of SQL Server.
References:
https://technet.microsoft.com/en-us/library/ms190766(v=sql.105).aspx
https://technet.microsoft.com/en-us/library/ms186986.aspx
NEW QUESTION NO: 39
DRAG DROP
You have two tables named UserLogin and Employee respectively.
You need to create a Transact-SQL script that meets the following requirements:
The script must update the value of theIsDeleted column for the UserLogin table to 1 if the value of the
Id column for the UserLogin table is equal to 1.
The script must update the value of the IsDeleted column of the Employee table to 1 if the value of the
Id column is equal to 1 for the Employee table when an update to the UserLogin table throws an error.
The error message "No tables updated!" must be produced when an update to the Employee table
throws an error.
Which five Transact-SQL segments should you use to develop the solution? To answer, move the appropriate Transact-SQL segments from the list of Transact-SQL segments to the answer area and arrange them in the correct order.
Select and Place:
Answer:
NEW QUESTION NO: 40
DRAG DROP
You have a database that stored information about servers and application errors. The database contains the following tables.
Servers
Errors
You are building a webpage that shows the three most common errors for each server.
You need to return the data for the webpage.
How should you complete the Transact-SQL statement? To answer, drag the appropriate Transact-SQL segments to the correct location. Each Transact-SQL segment 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.
NOTE: Each correct selection is worth one point.
Select and Place:
Answer:
NEW QUESTION NO: 41
HOTSPOT
You have the following stored procedure:
You run the following Transact-SQL statements:
What is the result of each Transact-SQL statement? To answer, select the appropriate options in the answer area.
Hot Area:
Answer:
Explanation/Reference:
Explanation:
Box 1: All transactions are rolled back.
The first IF-statement, IF @CODE = 'C2323' AND @ApplicationID = 1, will be true, an error will be raised, the error will be caught in the CATCH block, and the only transaction that has been started will be rolled back.
Box 2: Only Log1, Log2, and Log3 tables are updated.
The second IF-statement, IF @Code = 'C2323', will be true, so the second transaction will be rolled back, but log1, log2, and log3 was updated before the second transaction.
NEW QUESTION NO: 42
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section. You will NOT be able to return to it. As a result, these questions will not appear in the review screen.
A database has two tables as shown in the following database diagram:
You need to list all provinces that have at least two large cities. A large city is defined as having a population of at least one million residents. The query must return the following columns:
tblProvince.ProvinceId
tblProvince.ProvinceName
a derived column named LargeCityCount that presents the total count of large cities for the province
Solution: You run the following Transact-SQL statement:
Does the solution meet the goal?
A. Yes
B. No
Answer: B
Explanation/Reference:
Explanation:
We need to list all provinces that have at least two large cities. There is no reference to this in the code.
NEW QUESTION NO: 43
Note: This question is part of a series of questions that use the same or similar answer choices. An answer choice may be correct for more than one question in the series. Each question is independent of the other questions in this series. Information and details provided in a question apply only to that question.
You create a table by running the following Transact-SQL statement:
You are developing a report that aggregates customer data only for the year 2014. The report requires that the data be denormalized.
You need to return the data for the report.
Which Transact-SQL statement should you run?
A:
B:
C:
D:
E:
F:
G:
H:
A. Option B
B. Option F
C. Option E
D. Option H
E. Option A
F. Option C
G. Option D
H. Option G
Answer: H
NEW QUESTION NO: 44
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
After you answer a question in this section. you will NOT be able to return to it. As a result, these questions will not appear in the review screen.
You have a database that tracks orders and deliveries for customers in North America. The database contains the following tables:
Sales.Customers
Application.Cities
Sales.CustomerCategories
The company's development team is designing a customer directory application. The application must list customers by the area code of their phone number. The area code is defined as the first three characters of the phone number.
The main page of the application will be based on an indexed view that contains the area and phone number for all customers.
You need to return the area code from the PhoneNumber field.
Solution: You run the following Transact-SQL statement:
Does the solution meet the goal?
A. Yes
B. No
Answer: A
Explanation/Reference:
Explanation:
The following indicates a correct solution:
The function returns a nvarchar(10) value.
Schemabinding is used.
SELECT TOP 1 ... gives a single value
Note: nvarchar(max) is correct statement.
nvarchar [ ( n | max ) ]
Variable-length Unicode string data. n defines the string length and can be a value from 1 through 4,000.
max indicates that the maximum storage size is 2^31-1 bytes (2 GB).
References:
https://docs.microsoft.com/en-us/sql/t-sql/data-types/nchar-and-nvarchar-transact-sql
https://sqlstudies.com/2014/08/06/schemabinding-what-why/
NEW QUESTION NO: 45
DRAG DROP
You have a database that contains the following tables:
A delivery person enters an incorrect value for the CustomerID column in the Invoices table and enters the following text in the ConfirmedReceivedBy column: "Package signed for by the owner Tim." You need to find the records in the Invoices table that contain the word Tim in the CustomerName field.
How should you complete the Transact-SQL statement? To answer, drag the appropriate Transact-SQL segments to the correct locations. Each Transact-SQL segment 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.
NOTE: Each correct selection is worth one point.
Select and Place:
Answer:
Explanation/Reference:
Explanation:
Box 1:SELECT CustomerID FROM Sales.Invoices
Box 2:INNER JOIN Sales.Customers.CustomerID = Sales.Invoices.CustomerID Box 3:WHERE CustomerName LIKE '%tim%' Box 4:WHERE ConfirmedReceiveBy IN (SELECT CustomerName FROM Sales.Customers)