First Look at ADO.NET and System Xml v 2.0 by Alex Homer

By Alex Homer

This ebook makes an attempt to examine the evolving know-how of ADO .NET model 2.0 that would send with SQL Server 2005 and visible Studio .NET 2005. It does an outstanding activity of the main applied sciences and the makes use of of every of them.

I am awaiting the power to exploit asynchronous database connections and a number of lively outcome units (MARS). i will be able to already see the place it should make my present functions extra performant.

I am additionally waiting for the power to shop XML in SQL Server 2005 and use the XPath question engine on the way to pick out out the elements of the XML that i would like. With the XML services equipped into ADO .NET 2.0 and SQL Server 2005 it will likely be a lot more uncomplicated to paintings with XML data.

I have instructed this booklet to serveral humans. i feel it's a needs to learn for experts and others who have to remain at the cutting edge of expertise.

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By calling the methods of the WaitHandle, you effectively tell the code to wait for the specified process to complete. If there are multiple processes involved, you can create an array of WaitHandle instances and then tell the code to "sleep" until any one of them completes. 4, for the timeout that will be allocated to the process. 5. 4. The Properties of the WaitHandle Class Property Description WaitTimeout An Integer value that is the timeout for the process in milliseconds. 5. The Methods of the WaitHandle Class Method Description WaitOne Waits for a single process to complete or time out.

Any other positive value is the number of rows after which the event should be fired. 3 shows the four methods for the SqlBulkCopyOperation class that start a bulk copy operation, each taking a different type of object that acts as the source of the rows to be copied. The final method is used to close the SqlBulkCopyOperation instance after use. There are no return values for these methods. 30 31 The SqlRowsCopied Event Handler As a bulk copy process is running, and depending on the value of the NotifyAfter property, the SqlRowsCopied event will be raised at various intervals.

2. The SqlBulkCopyOperation Properties Property Description BatchSize Sets or returns an Integer value that specifies the number of rows to be copied in each batch. If the destination database supports batched updates, the commands are batched together to improve efficiency and reduce network traffic. If not, the SqlBulkCopyOperation instance manages and executes each batch itself. A batch size of 0 (the default) indicates that all the updates will be performed as a single batch. BulkCopyTimeout Sets or returns an Integer value that specifies the number of seconds for the complete operation to complete before it times out.

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