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The particularly nice thing about the 10104 trace file is that the detail supplied is extremely informative, and can give you a very good idea of how big your hash_area_size should be to get from a multipass to a onepass join, or from a onepass to an optimal join We have already seen various bits of the 10104 trace, but here are four of the lines that appear very early on in the 9i trace file (similar content with a slightly different presentation appears in the 8i and 10g files): Original memory: 131072 Memory after all overhead: 129554 Memory for slots: 122880 .. Estimated build size (KB): 2050 The Memory for slots tells you how much memory is available at maximum for creating the in-memory hash table The estimated build size tells you how much memory the optimizer thinks you need for slots. vb.net code 39 reader VB . NET Image: Example to Read Code 39 Barcode with VB . NET Codes in ...
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Free to download .NET, C#, VB . NET barcode reader app for Code 39 ; C# Code 39 recognition SDK; VB . NET Code 39 recognition SDK. product documentation for the XmlSerializer class or online at http://msdn.microsoft.com/ library/default.asp url=/library/en-us/cpref/html/frlrfSystemXmlSerializationXml SerializerClassTopic.asp. You can also read Dare Obasanjo s (former Program Manager of the XML WebData team, now part of the MSN team) excellent article about .NET XML serialization at In this case, if you want to do an optimal hash, it looks like you are going to have to increase your hash_area_size from 128KB (of which about 120KB is available) to something a little over 2MB If we know we don t have enough memory to allow a hash_area_size large enough for the optimal join, then we may be able to allocate enough for the onepass join and as we saw previously, we need only check the section of the trace file that describes how Oracle is reacquiring data from disk: Getting a pair of flushed partions. data matrix code in word erstellen, birt qr code, birt data matrix, birt upc-a, birt pdf 417, word aflame upc lubbock vb.net code 39 reader read code 39 barcode with vb . net - Stack Overflow
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NET Code 39 Barcode Reader , Reading Code - 39 barcode images in .NET, C#, VB . NET , ASP.NET applications. Let s take a look at the powerful support for custom types serialization by adding such a feature to our web service. Try It Out: Return Custom Data Types To demonstrate the use of custom data types, you ll create a new method that returns the same data as the GetContactRequests() method, but with a different name. By implementing it this way, you can compare the output of the methods side by side, as well as compare the consumer-side code and how it changes in this case. ) You may find another important clue about the general performance of a hash join in a section of the trace file that gives a partition-level summary of how successfully the rows have been distributed:. 1. Within the Partners.asmx code-behind file, in the SQL statement, you can see that you are returning five fields: FirstName, LastName, Email, Notes, and IsApproved. To represent this, you can add a class called Contact alongside the Partners class in the Partners.asmx.vb file, as follows: Public Class Contact Public FirstName As String Public LastName As String Public Email As String Public Notes As String Public IsApproved As Boolean End Class 2. Next, add a new web method, called GetContactRequestsCustom(), to the Partners class. This new method is very similar to the existing GetContactRequests() method, except that you use the SqlDataReader to initialize the Contact objects: <WebMethod(CacheDuration:=600)> _ Public Function GetContactRequestsCustom(ByVal login As String, _ ByVal password As String) As Contact() cnFriends.Open() Try cmContacts.Parameters("@Login").Value = login cmContacts.Parameters("@Password").Value = password Dim reader As SqlDataReader = cmContacts.ExecuteReader() Dim contacts As New ArrayList While reader.Read() Dim ct As New Contact ct.FirstName = CStr(reader("FirstName")) ct.LastName = CStr(reader("LastName")) ct.Email = CStr(reader("Email")) ct.Notes = CStr(reader("Notes")) ct.IsApproved = CBool(reader("IsApproved")) contacts.Add(ct) End While Return CType(contacts.ToArray(GetType(Contact)), Contact()) Finally cnFriends.Close() End Try End Function As you can see, you ve simply changed the return type, and replaced the dataset handling and filling code with a block of lines that move the data into an ArrayList containing Contacts initialized with the SqlDataReader data. Finally, you simply convert this list to an array and return that array instead of the XML. vb.net code 39 reader Visual Studio . NET Barcode Scanner Library API for . NET Barcode ...
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