upc internet sk Data Integrity and Error Handling in SQL Server 2005 in .NET

Creator UPC-A in .NET Data Integrity and Error Handling in SQL Server 2005

For this record, a column named address would be returned as 3029 Pastime Dr. #2. For all records in which AddressLine2 was set with a NULL value, the address column would contain the value from AddressLine1 only.

1. The correct answer to this question is to use a custom configuration provider. Specifically, a provider should be created to retrieve information from the MySQL database and present it to the .NET applications as the configuration data. Although it s true that there is no MySQL data provider available out of the box, a number of third-party alternatives can be used instead. The reason for taking this approach has to do with ensuring that the configuration information can t get out of sync. The typical approaches to solving this type of problem include creating a common front end for configuration and using a trigger to cause updates to be automatically serialized.

The most basic requirement for making an object remote is that it must derive from the MarshalByRefObject class (refer to Table 4-1). Any class can be made remoteable this way, so you can make any of your existing classes remoteable by simply adding this derivation. The following code provides an example of this step:

SELECT * FROM [dbo].[FactInternetSales] WHERE OrderDateKey >= 20040101 and OrderDateKey <= 20041231

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Following DNS standards, the domain name of a child domain is the relative name of that child domain appended with the name of the parent domain. All domains within a single tree share a common schema, which is a formal definition of all object types that you can store in an Active Directory deployment. All domains within a single tree share a common Global Catalog, which is the central repository of information about objects in a tree.

-- Query 2 -- Query for all product names that begin with the letter -- using the Finnish_Swedish_CI_AI collation. SELECT Name FROM Test.ProductNames WHERE Name LIKE ' %' COLLATE Finnish_Swedish_CI_AI;

Enterprise networks can be used to create enterprise-level rules. For example, you can create an enterprise network named Internal Network that includes all the IP addresses for computers on your network. Then you can create an enterprise-level

1. Correct Answer: D A. Incorrect: The sys.dm_tran_locks DMV returns information about currently active lock manager resources. When a lock contention has been identified, you can use the sp_who stored procedure or Activity Monitor to obtain information about the current user connections, the locks they hold, and the processes that are involved. This procedure probably gives you the information you need, but it involves additional administrative effort. B. Incorrect: The Number of Deadlocks/sec counter tells you how many locks per second become deadlocks. It does not indicate the causes of the deadlocks. C. Incorrect: Even if you could identify the application code that was causing the problem, it might not be readily accessible for copying into Query Editor. The DTA gives recommendations to improve query performance. It does not directly identify the causes of deadlocks. D. Correct: The Deadlock Graph event class provides the easiest method of determining why deadlocks occur. 2. Correct Answer: B A. Incorrect: The Lock Waits/sec performance counter returns the number of lock requests per second that required the caller to wait. A high value in this counter can indicate locking issues, but the counter is not a good indicator of overall database performance. B. Correct: The Access Methods object in Microsoft SQL Server provides counters to monitor how the logical data within the database is accessed. The Full Scans/sec counter indicates the number of unrestricted full scans per second. Measured against a baseline, this counter gives an indication of how well databases in a server are performing.

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Exercise 2: Examine a Cursor In this exercise, you will use SQL Server Profiler to examine the execution of a cursor. 1. Open SQL Server Profiler by clicking Start, All Programs, Microsoft SQL Server 2005, Performance Tools, SQL Server Profiler. 2. Click File, New Trace. 3. Enter the connection information for the server that contains the AdventureWorks database, and then click Connect. 4. From the Trace Properties dialog box, enter a name for the trace, and select the Events Selection tab. 5. Select the Show all events check box, and scroll to the Stored Procedures event class and expand that node. Select the check boxes for all stored procedure events. 6. Click Run to begin the trace. Do not close SQL Server Profiler or close the Trace Properties dialog box. 7. Open SQL Server Management Studio. 8. Connect to the instance of SQL Server 2005 that contains the AdventureWorks database. 9. Select New Query. 10. Add the following code to the query window: