chapter20 ado net and relational databases
Tài liệu Using ADO.NET and SQL Server DBMS Transactions Together doc
Ngày tải lên :
21/01/2014, 11:20
... conn.BeginTransaction( ); // Create command in the transaction with parameters SqlCommand cmd = new SqlCommand("InsertCategories_Transacted", conn, tran); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.Add("@CategoryID", ... properly When calling a stored procedure from a NET manual transaction, the transaction count entering the stored procedure is Using the SQL BEGIN TRAN command in the stored procedure creates a nested ... with the COMMIT TRAN command, the transaction count is decremented back to Keep in mind commits of inner transactions don't free resources or make modifications permanent, and don't affect outer...
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ADO.NET and LINQ connect
Ngày tải lên :
19/04/2014, 20:11
... major upgrade to Visual Studio 2005 and the Visual Basic 8.0 and C# 2.0 languages ADO. NET 3.5 introduces many new language and data access features to ADO NET 2.0 and its DataSet-oriented programming ... Professional ADO. NET 3.5 with LINQ and the Entity Framework Introduction xxvii Part I: Getting a Grip on ADO. NET 3.5 Chapter 1: Taking a New Approach to Data Access in ADO. NET 3.5 ... The ADO. NET Team subsequently released EF CTP and Beta editions with the intention of adding it to VS 2008 and NET 3.5 in the first half of 2008 EF and EDM released with NET 3.5 SP1 and VS 2008...
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Practical mod_perl-CHAPTER 20:Relational Databases and mod_perl
Ngày tải lên :
24/10/2013, 08:15
... appropriate database handle, or if the ping( ) method fails, Apache::DBI establishes a new connection, stores the handle, and then returns the handle to the caller It is important to understand that the ... syntax Alternatively, you can switch databases with USE foo and USE bar, but this approach seems less convenient, and therefore error-prone Cannot find the DBI handler You must use DBI->connect( ... row on the client side This can tie up the server and prevent other threads from updating the tables 580 | Chapter 20: Relational Databases and mod_perl This is the Title of the Book, eMatter...
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Data Models, Datasets, and the ADO.NET Interface
Ngày tải lên :
05/10/2013, 08:48
... introduction to ADO. NET What Is ADO. NET? In simple words, ADO. NET is a set of components to help developers access data and related data services It comes as a base class library with the Microsoft NET Framework ... with the Microsoft NET Framework Both relational and nonrelational data sources can be accessed using ADO. NET A discussion of the full functionality of ADO. NET is beyond the scope of this book ... DATASETS, AND THE ADO. NET INTERFACE Figure 3-1 Connecting to a SQL Server instance In Object Explorer, right-click the Databases node, and select Attach (see Figure 3-2) Figure 3-2 Select the Databases...
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Module 5: Reading and Writing XML with ADO.NET
Ngày tải lên :
26/10/2013, 23:15
... Module 5: Reading and Writing XML with ADO. NET iii Instructor Notes Microsoft® ADO. NET uses XML as the format for managing and moving data from a data source to a DataSet object and back This module ... Module 5, “Reading and Writing XML with ADO. NET in Course 2389B, Programming with Microsoft ADO. NET What Is an XmlDataDocument Object? Technical Notes: Emphasize that the XMLDataDocument object ... Reading and Writing XML with ADO. NET Generating an XSD Schema with Visual Studio NET ! The Visual Studio NET Schema Editor provides " Tag completion " Color coding " Ability to drag and drop standard...
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Create and Execute On-the-Fly Batch Updates by Using ADO.NET
Ngày tải lên :
07/11/2013, 15:15
... command is instantiated in this case, the string in the txtSQL text box is passed as the CommandText The CommandType is set as CommandType.Text The connection is then open Finally, the command ... Update Statement to Execute: and the Execute button is clicked, the command entered is executed, and the number of records that were affected is returned Comments The Command object is a real workhorse ... Try…Catch…End Try block to trap any exceptions that might occur when working with ADO. NET In this case, the error is trapped and a message box displays the error Remember that exceptions that are not...
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Tài liệu Module 7: Building and Consuming a Web Service That Uses ADO.NET ppt
Ngày tải lên :
10/12/2013, 16:15
... Files\Msdntrain\2389\Practices\Mod07\Lesson2\ClientList Module 7: Building and Consuming a Web Service That Uses ADO. NET vii Review: Building and Consuming a Web Service That Uses ADO. NET This section provides the answers to ... application Module 7: Building and Consuming a Web Service That Uses ADO. NET Overview ! Building and Consuming a Web Service That Returns Data ! Lab 7.1: Troubleshooting an ADO. NET Application *****************************ILLEGAL ... application ! Troubleshoot errors in a Microsoft® ADO. NET application 2 Module 7: Building and Consuming a Web Service That Uses ADO. NET Lesson: Building and Consuming a Web Service That Returns Data...
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Tài liệu Professional ADO.NET 2 Programming with SQL Server 2005, Oracle and MySQL (P2) ppt
Ngày tải lên :
12/12/2013, 21:16
... providers for their databases since Figure 1.5 shows the connection options available with ADO. NET Application ADO. NET OLE DB Data Store Figure 1-5 10 ODBC History of Data Access With ADO. NET, the days ... long way, but even with ADO. NET, there’s still room to grow The transition to ADO. NET 2.0 is not a drastic one For the most part, Microsoft and the developers who use ADO. NET like it the way it ... schemas: aspnet_Membership_ChangePasswordQuestionAndAnswer aspnet_Membership_CreateUser aspnet_Membership_FindUsersByEmail aspnet_Membership_FindUsersByName aspnet_Membership_GetAllUsers aspnet_Membership_GetNumberOfUsersOnline...
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Tài liệu Professional ADO.NET 2 Programming with SQL Server 2005, Oracle and MySQL (P1) docx
Ngày tải lên :
12/12/2013, 21:16
... Days CODASYL IMS Relational Databases The Birth of Universal Data Access ODBC OLE-DB Data Access Consumers DAO RDO ADO ADO .NET ADO. NET 2.0 Summary For More Information Chapter 2: Standardized Database ... UNIQUEIDENTIFIER XML TABLE and CURSOR Data Types in ADO. NET and NET SqlTypes Other Alternatives Mapping SQL Server Data Types to NET Summary For More Information Chapter 5: ADO. NET Integration with ... 252 254 256 256 264 264 Chapter 10: ADO. NET Programming with SQL Server from a Client Application 265 SQL Server and ADO. NET Asynchronous Commands in ADO. NET BeginExecuteNonQuery BeginExecuteReader...
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Tài liệu Edit Data and Update Changes That Are Made to an ADO.NET pdf
Ngày tải lên :
24/12/2013, 06:17
... command builder 202 Dim ocbCustIndiv As OleDb.OleDbCommandBuilder 203 ocbCustIndiv = New OleDb.OleDbCommandBuilder(modaCustIndiv) 204 205 ' Have the command builder create an update SQL command ... these objects with their properties and methods used in the following steps Steps Open and run the VB .NET- Chapter solution From the main form, click on the command button with the caption How-To ... builder create an update SQL command 206 modaCustIndiv.UpdateCommand = ocbCustIndiv.GetUpdateCommand 207 208 ' Perform the update SQL command; then close the connection 209 modaCustIndiv.Update(mdsCustIndiv,...
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Tài liệu Using ADO.NET Databases docx
Ngày tải lên :
24/12/2013, 09:16
... hostname command in the command prompt window, before running the sqlcmd command This command uses the sqlcmd utility to connect to your local instance of SQL Server 2005 Express and run the instnwnd.sql ... form and expand it to fill the right-hand side of the form While the DataGridView control is still selected (click it if it is not), click the Smart Tag handle that appears at the top right-hand ... the database, or access the results of stored procedures and functions in SQL Server 10 Expand the Tables folder and select the Products and Suppliers tables The wizard generates a DataSet object...
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Tài liệu Add and Delete Rows in a Dataset with ADO.NET pdf
Ngày tải lên :
21/01/2014, 12:20
... modaCustIndiv.InsertCommand = ocbCustIndiv.GetInsertCommand 82 Else 83 ' Have the command builder create an update SQL command 84 modaCustIndiv.UpdateCommand = ocbCustIndiv.GetUpdateCommand 85 End If ... command builder ocbCustIndiv = New OleDb.OleDbCommandBuilder(modaCustIndiv) ' Have the command builder create a Delete SQL command modaCustIndiv.DeleteCommand = ocbCustIndiv.GetDeleteCommand ... command builder Dim ocbCustIndiv As OleDb.OleDbCommandBuilder ocbCustIndiv = New OleDb.OleDbCommandBuilder(modaCustIndiv) If mblnAdd Then 80 ' Have the command builder create an Insert SQL command...
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Tài liệu create and Execute On-the-Fly Batch Updates by Using ADO.NET docx
Ngày tải lên :
21/01/2014, 12:20
... command is instantiated in this case, the string in the txtSQL text box is passed as the CommandText The CommandType is set as CommandType.Text The connection is then open Finally, the command ... Update Statement to Execute: and the Execute button is clicked, the command entered is executed, and the number of records that were affected is returned Comments The Command object is a real workhorse ... Try…Catch…End Try block to trap any exceptions that might occur when working with ADO. NET In this case, the error is trapped and a message box displays the error Remember that exceptions that are not...
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Tài liệu Module 1: Data-Centric Applications and ADO.NET pptx
Ngày tải lên :
24/01/2014, 10:20
... Applications and ADO. NET Lesson: ADO. NET Architecture ! What Is ADO. NET? ! What Are the Data-Related Namespaces? ! Evolution of ADO to ADO. NET ! The ADO. NET Object Model ! Using ADO. NET Classes ... Appendix B, ADO and ADO. NET Comparison,” for more information about the reasons for the changes between ADO and ADO. NET 14 Module 1: Data-Centric Applications and ADO. NET The ADO. NET Object Model ... Web service works with ADO. NET 20 Module 1: Data-Centric Applications and ADO. NET ADO. NET and XML ! ADO. NET is tightly integrated with XML ! Using XML in a disconnected ADO. NET application XML...
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MATERIALS AND METHODS (for definitions and additional details, see the technical appendix at end of chap- ter): Sources of data pdf
Ngày tải lên :
29/03/2014, 01:20
... and Asian/Pacific Islander children were intermediate to those for whites and blacks The rates for Asian/ Pacific Islanders were similar to whites for leukemia but lower than whites for CNS and ... Utah, and Hawaii and with the metropolitan areas of Los Angeles, California; Detroit, Michigan; San Francisco-Oakland and San JoseMonterey, California; Seattle-Puget Sound, Washington; and Atlanta, ... neuroblastomas and retinoblastomas Certain groups can be identified as specific entities on death certificates: Leukemias, Lymphomas, Bones, Brain and other CNS tumors, and Hodgkin’s and Non-Hodgkin’s...
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UNIT 5. DATABASE MANAGEMENT SYSTEMS LESSON 4. TEXTUAL, RELATIONAL AND XML DATABASESNOTE docx
Ngày tải lên :
31/03/2014, 20:20
... management systems - Textual, relational and xml databases – page 12 XML and databases Recently there has been much technical work on the linkage of XML and databases Relational databases can be used ... systems - Textual, relational and xml databases – page Relational databases With a relational database these problems are solved A relational database is a database which uses the relational data ... file databases XML in Practice,Chuck Law,30/01/99,Panda Press,345 XML in Practice,Chuck Law,30/01/99,Panda Press,345 Relational Databases, Ed Trout,14/03/85,Bross and Smart,267 Relational Databases, Ed...
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UNIT 5. DATABASE MANAGEMENT SYSTEMS LESSON 5. RELATIONAL DATABASES AND SQL BASICSNOTE docx
Ngày tải lên :
31/03/2014, 20:20
... - Relational databases and SQL basics – page 14 Summary • SQL (Structured Query Language) is the language used to interact with a relational database • Relational databases, and the SQL standard, ... it is a database sub-language and is becoming the standard interface to relational and non -relational database management systems (DBMS) The DBMS stores the data and retrieves or updates it in ... can be created and manipulated using the Structured Query Language (SQL), which allows interaction with relational databases Database management systems - Relational databases and SQL basics...
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benjamin van vliet - 2004 - modeling financial markets using visual basic net and databases to c
Ngày tải lên :
23/04/2014, 16:19
... Visual Basic .NET, ADO. NET, databases and SQL, object-oriented programming, XML, and UML Team-LRN Development Methodology 29 PROBLEMS When developing financial models in Visual Basic .NET, how we ... 14 15 Relational Databases 187 ADO. NET 201 Structured Query Language 219 Introduction to Data Structures 243 Advanced Data Structures 257 iii Team-LRN Contents iv SECTION FOUR Advanced VB .NET: ... along with mathematics and trading applications to illustrate the steps along the Kumiega–Van Vliet paradigm So this book is not just about Visual Basic .NET (VB .NET) and databases It is about...
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Chapter 10 Functional Dependencies and Normalization for Relational Databases
Ngày tải lên :
12/05/2014, 11:55
... Design Guidelines for Relational Databases (2) We first discuss informal guidelines for good relational design Then we discuss formal concepts of functional dependencies and normal forms - 1NF ... (For Multiple Keys) BCNF (Boyce-Codd Normal Form) Informal Design Guidelines for Relational Databases (1) What is relational database design? The grouping of attributes to form "good" relation ... Chapter Outline Informal Design Guidelines for Relational Databases 1.1Semantics of the Relation Attributes 1.2 Redundant Information in Tuples and Update Anomalies 1.3 Null Values in Tuples...
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