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  3. You are the administrator of SQL Server 2000 computer named FABSQL2K01. You create a Data Transformation Services package that c

You are the administrator of SQL Server 2000 computer named FABSQL2K01. You create a Data Transformation Services package that c

admin2009-05-19  77
问题 You are the administrator of SQL Server 2000 computer named FABSQL2K01. You create a Data Transformation Services package that contains definition for two transform data tasks.

The tasks gets data from two text files named Customers and Sales. The DTS package is configured as shown in the exhibit.

You do not want the DTS package to add any data to the server unless both transform data tasks complete successfully.

You select the use transactions check box of DTS package and the Join transaction of present check box of both transform data tasks. You then select the fail package on step failure check box of both transform data tasks.

You want to use the DTS package to import data from the text files to the server. You want to ensure that changes are committed if all imported data is successfully transformed.


What should you do?
选项 A、Select the commit on successful completion check box of the DTS package.
B、Select the commit transaction on successful completion of this step check box of the customers transform data task.
C、Select the commit transaction on successful completion of this step check box of the sales transform data task.
D、Select the commit transaction on successful completion of this step check box of both transform data tasks.
答案A
解析 Explanation: It is possible to set the Commit on successful package completion check box on the Advanced Tab of the DTS Properties dialog Box. This check box specifies that if each individual SQL statement is a transaction completes successfully, the transaction will automatically be committed; and if the statement has an error, the statement is rolled back.

When this check box is cleared, the DTS connections operate in implicit transaction mode and the first SQL statement begins a transaction that remains in effect until DTS commits it or rolls it back. The next SQL statement executed after any commit or rollback starts a new transaction.

Incorrect Answers:
B: The Commit transaction on successful completion of this step check box treats each step in a DTS package as separate. Thus, selecting the Commit transaction on successful completion of this step check box of the customers transform data task would result in this task being committed regardless of the progress of the sales transformation data task.

C: The Commit transaction on successful completion of this step check box treats each step in a DTS package as separate. Thus, selecting Commit transaction on successful completion of this step check box of the sales transform data task would result in this task being committed regardless of the progress of the customer’s transformation data task.

D: The Commit transaction on successful completion of this step check box treats each step in a DTS package as separate. Thus, select the commit transaction on successful completion of this step check box of both transform data tasks would result in the two parts being treated as separate and each part being committed regardless of the progress in the other.
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