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Because the data contains ve unique attributes (attr1, attr2, attr3, attr4, and attr5), you need ve expressions in the SELECT list Each expression is supposed to extract, out of the rows belonging to the grouped object, the value corresponding to a speci c attribute You can think of this logical phase as a spreading phase you need to spread the values, or shift them, from the source column (value in our case) to the corresponding target column As for the element that dictates where to spread the values, or the spread by element, in our case it is the attribute column This spreading activity can be done with the following CASE expression, which in this example is applied to the attribute attr2:.

Int32 x = Int32.Parse("1A", NumberStyles.HexNumber, null); Console.WriteLine(x); // Displays "26"

ATTENDEE -------7876 7499

This query returns an empty set . If you query the Customers table directly, you see the new customer:

The only problem is that the Sequence table keeps growing as new sequence values are generated. You need to run a job on scheduled basis that periodically clears the table. Be careful, though, with the technique that you use to clear the table. If you use a DELETE statement, it will take time to nish because it s a fully logged operation, and it might also cause lock escalation. If you use the minimally logged TRUNCATE TABLE statement, it will be fast, but the identity value will be reseeded. To use the fast TRUNCATE TABLE statement while preserving the seed before the emptying of the table, you need to do the following: 1. Open a transaction. 2. Lock the table. 3. Set aside the current identity value plus one. 4. Truncate the table. 5. Reseed the identity value to the value you kept aside. 6. Commit the transaction and release the lock. Here s how the code might look:

FIguRE 21-6 The managed heap showing pointers that moved from the finalization list to the freachable

< php /** * @version $Id: mod_missingmeta.php 2007-07-12 21:49:30Z Danr $ */ // no direct access defined( '_JEXEC' ) or die( 'Restricted access' ); $db =& JFactory::getDBO(); // Find all empty strings in metakey and metadesc and // make sure the article is published (state=1). $where = "(metakey = '' or metadesc = '') and state = 1 "; $query = "SELECT id, title, metakey, metadesc" . " FROM #__content WHERE " . $where . " ORDER BY title ASC"; $db->setQuery( $query, 0); > <table class="adminlist"> <tr> <td class="title"> <strong>< php echo JText::_( 'Article' ); ></strong> </td> <td class="title"> <strong>< php echo JText::_( 'Empty Description' ); ></strong> </td>

In the Disk Management console, right-click the unallocated disk and choose the type of new volume you want to create. To create a partition, select New Simple Volume, as shown in Figure 11-4.

One of the controls that resides in the System.Windows.Controls assembly is the GridSplitter. This control provides the ability for a user to change the width of a column or row in an application. If used properly, the GridSplitter can greatly improve the appearance of your application, as well as the user experience. In the following exercise, you will implement a simple GridSplitter. 1. Create a new Silverlight application in Visual Studio 2008 called Ch4_GridSplitter. Allow Visual Studio to create a Web Site project to host the application. In the MainPage.xaml file, divide the root Grid into two columns. The first column should be 150 pixels in width, and the second should take up the remainder of the application. To be able to see what is going on in the grid, set ShowGridLines to True. Also add two TextBlock controls to the application: one in the first column and one in the second column. Your source should appear as follows:

http://localhost:53908/WcfDataSrv-cs/NwdDataService.svc/Customers('ALFKI')

// A public method that is also the interface implementation public Int32 CompareTo(Object o) { Console.WriteLine("Derived's CompareTo"); // This attempt to call the base class's EIMI causes infinite recursion IComparable c = this; c.CompareTo(o); return 0; }

3. You log on to the domain, map a drive to the share \\192.168.5.55\share, and then copy some files. You then use Kerbtray.exe to examine the Kerberos tickets. You find a ticket for your account and the service krgbt. You do not find a ticket for CIFS for this server. What is the most likely reason for this problem a. The ticket with the service krgbt is the ticket for this type of connection. b. Using the IP address instead of server name means NTLM will be used. c. The Kerbtray.exe utility shows only TGT tickets, and the share ticket is a user or session ticket. d. The Kerbtray.exe utility shows only session tickets, and the share ticket is a TGT ticket.

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