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2017-07-15 09:35:26 | 日記

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070-761試験番号:070-761 的中率
試験科目:「Querying Data with Transact-SQL」
最近更新時間:2017-07-14
問題と解答:60

>> 070-761 的中率


 

NO.1 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 named Customers. Data stored in the table must be exchanged between web
pages and web servers by using AJAX calls that use REST endpoint.
You need to return all customer information by using a data exchange format that is text- based and
lightweight.
Which Transact-SQL statement should you run?
A. Option G
B. Option A
C. Option C
D. Option H
E. Option E
F. Option F
G. Option D
H. Option B
Answer: C

070-761 絶対   
Explanation:
JSON can be used to pass AJAX updates between the client and the server.
Export data from SQL Server as JSON, or format query results as JSON, by adding the
FOR JSON clause to a SELECT statement.
When you use the FOR JSON clause, you can specify the structure of the output explicitly, or let the
structure of the SELECT statement determine the output.
References: https://msdn.microsoft.com/en-us/library/dn921882.aspx

NO.2 You have a database that includes the tables shown in the exhibit. (Click the exhibit button.)
You need to create a list of all customers, the order ID for the last order that the customer placed,
and the date that the order was placed. For customers who have not placed orders, you must
substitute a zero for the order ID and 01/01/1990 for the date.
Which Transact-SQL statement should you run?
A. Option C
B. Option A
C. Option B
D. Option D
Answer: B

070-761 認定   070-761 受験料   
Explanation:
ISNULL Syntax: ISNULL ( check_expression , replacement_value ) author:"Luxemburg, Rosa"
The ISNULL function replaces NULL with the specified replacement value. The value of
check_expression is returned if it is not NULL; otherwise, replacement_value is returned after it is
implicitly converted to the type of check_expression.
References: https://msdn.microsoft.com/en-us/library/ms184325.aspx

NO.3 DRAG DROP
You need to create a stored procedure that meets the following requirements:
- Produces a warning if the credit limit parameter is greater than 7,000
- Propagates all unexpected errors to the calling process
How should you complete the Transact-SQL statement? To answer, drag the appropriate
Transact-SQP segments to the correct locations. Each Transact-SQL segments 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.
Answer:
Explanation:
Box 1: THROW 51000, 'Warning: Credit limit is over 7,000!",1
THROW raises an exception and transfers execution to a CATCH block of a TRY...CATCH construct in
SQL Server.
THROW syntax:
THROW [ { error_number | @local_variable },
{ message | @local_variable },
{ state | @local_variable } ]
[ ; ]
Box 2: RAISERROR (@ErrorMessage, 16,1)
RAISERROR generates an error message and initiates error processing for the session.
RAISERROR can either reference a user-defined message stored in the sys.messages catalog view or
build a message dynamically. The message is returned as a server error message to the calling
application or to an associated CATCH block of a TRY...CATCH construct. New applications should use
THROW instead.
Severity levels from 0 through 18 can be specified by any user. Severity levels from 19 through 25 can
only be specified by members of the sysadmin fixed server role or users with ALTER TRACE
permissions. For severity levels from 19 through 25, the WITH LOG option is required.
On Severity level 16. Using THROW to raise an exception
The following example shows how to use the THROW statement to raise an exception.
Transact-SQL
THROW 51000, 'The record does not exist.', 1;
Here is the result set.
Msg 51000, Level 16, State 1, Line 1
The record does not exist.
Note: RAISERROR syntax:
RAISERROR ( { msg_id | msg_str | @local_variable }
{ ,severity ,state }
[ ,argument [ ,...n ] ] )
[ WITH option [ ,...n ] ]
Note: The ERROR_MESSAGE function returns the message text of the error that caused the CATCH
block of a TRY...CATCH construct to be run.
References:
https://msdn.microsoft.com/en-us/library/ms178592.aspx
https://msdn.microsoft.com/en-us/library/ms190358.aspx
https://msdn.microsoft.com/en-us/library/ee677615.aspx

NO.4 You need to create an indexed view that requires logic statements to manipulate the data that
the view displays.
Which two database objects should you use? Each correct answer presents a complete solution.
A. a user-defined scalar function
B. a stored procedure
C. a user-defined table-valued function
D. a CRL function
Answer: B,C

070-761 最新   


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