 2006 Pearson Education, Inc. All rights reserved Database, SQL and ADO.NET

 2006 Pearson Education, Inc. All rights reserved. 2 It is a capital mistake to theorize before one has data. — Arthur Conan Doyle Now go, write it before them in a table, and note it in a book, that it may be for the time to come for ever and ever. — Holy Bible, Isaiah 30:8 Get your facts first, and then you can distort them as much as you please. — Mark Twain I like two kinds of men: domestic and foreign. — Mae West

 2006 Pearson Education, Inc. All rights reserved. 3 OBJECTIVES In this chapter you will learn:  The relational database model.  To write basic database queries in SQL.  To add data sources to projects.  To use the IDE's drag-and-drop capabilities to display database tables in applications.  To use the classes of namespaces System.Data and System.Data.SqlClient to manipulate databases.  To use ADO.NET's disconnected object model to store data from a database in local memory.  To create XML documents from data sources.

 2006 Pearson Education, Inc. All rights reserved Introduction 20.2 Relational Databases 20.3 Relational Database Overview: Books Database 20.4 SQL Basic SELECT Query WHERE Clause ORDER BY Clause Merging Data from Multiple Tables: INNER JOIN INSERT Statement UPDATE Statement DELETE Statement 20.5 ADO.NET Object Model

 2006 Pearson Education, Inc. All rights reserved Programming with ADO.NET: Extracting Information from a Database Displaying a Database Table in a DataGridView How Data Binding Works 20.7Querying the Books Database 20.8 Programming with ADO.NET: Address Book Case Study 20.9 Using a DataSet to Read and Write XML 20.10Wrap-Up 20.11Web Resources

 2006 Pearson Education, Inc. All rights reserved. 6 Fig | Adding a data source to a project. Data Sources windowData menu

 2006 Pearson Education, Inc. All rights reserved. 7 Fig | Choosing the data source type in the Data Source Configuration Wizard.

 2006 Pearson Education, Inc. All rights reserved. 8 Fig | Adding a new data connection.

 2006 Pearson Education, Inc. All rights reserved. 9 Fig | Choosing the Books.mdf data connection.

 2006 Pearson Education, Inc. All rights reserved. 10 Fig | Saving the connection string to the application configuration file.

 2006 Pearson Education, Inc. All rights reserved. 11 Fig | Choosing the database objects to include in the DataSet.

 2006 Pearson Education, Inc. All rights reserved. 12 Fig | Viewing a data source listed in the Data Sources window. Data Sources window

 2006 Pearson Education, Inc. All rights reserved. 13 Fig | Viewing a database listed in the Solution Explorer.

 2006 Pearson Education, Inc. All rights reserved. 14 Fig | Design view after dragging the Authors data source node to the Form. authorsBindingNavigator authorsDataGridView Component tray

 2006 Pearson Education, Inc. All rights reserved. 15 Fig | Displaying the Authors table in a DataGridView. Move to first row Move to next row Move to previous row Move to last row (a) Delete the current row Add a new row Save changes (b) Currently selected row

 2006 Pearson Education, Inc. All rights reserved. 16 Fig | Data binding architecture used to display the Authors table of the Books database in a GUI.

 2006 Pearson Education, Inc. All rights reserved. 17 Outline DisplayTable.cs (1 of 2)

 2006 Pearson Education, Inc. All rights reserved. 18 Outline DisplayTable.cs (2 of 2) (a) (b)

 2006 Pearson Education, Inc. All rights reserved. 19 Fig | Viewing the BooksDataSet in the Dataset Designer. Dataset Designer TitlesTableAdapter

 2006 Pearson Education, Inc. All rights reserved. 20 Fig | TableAdapter Query Configuration Wizard to add a query to a TableAdapter.

 2006 Pearson Education, Inc. All rights reserved. 21 Fig | Choosing the type of query to be generated for the TableAdapter.

 2006 Pearson Education, Inc. All rights reserved. 22 Fig | Specifying a SELECT statement for the query.

 2006 Pearson Education, Inc. All rights reserved. 23 Fig | Query Builder after adding a WHERE clause by entering a value in the Filter column. (Part 1 of 2.) (a)

 2006 Pearson Education, Inc. All rights reserved. 24 Fig | Query Builder after adding a WHERE clause by entering a value in the Filter column. (Part 2 of 2.) (b)

 2006 Pearson Education, Inc. All rights reserved. 25 Fig | The SELECT statement created by the Query Builder.

 2006 Pearson Education, Inc. All rights reserved. 26 Fig | Specifying names for the methods to be added to the TitlesTableAdapter.

 2006 Pearson Education, Inc. All rights reserved. 27 Fig | Dataset Designer after adding Fill and Get methods to the TitlesTableAdapter.

 2006 Pearson Education, Inc. All rights reserved. 28 Outline DisplayQuery Result.cs (1 of 5)

 2006 Pearson Education, Inc. All rights reserved. 29 Outline DisplayQuery Result.cs (2 of 5)

 2006 Pearson Education, Inc. All rights reserved. 30 Outline DisplayQuery Result.cs (3 of 5)

 2006 Pearson Education, Inc. All rights reserved. 31 Outline DisplayQuery Result.cs (4 of 5) (b) (a)

 2006 Pearson Education, Inc. All rights reserved. 32 Outline DisplayQuery Result.cs (5 of 5) (c)

 2006 Pearson Education, Inc. All rights reserved. 33 Outline AddressBook.cs (1 of 3)

 2006 Pearson Education, Inc. All rights reserved. 34 Outline AddressBook.cs (2 of 3)

 2006 Pearson Education, Inc. All rights reserved. 35 Outline AddressBook.cs (3 of 3) (b)(a) (c)

 2006 Pearson Education, Inc. All rights reserved. 36 Fig | Selecting the control(s) to be created when dragging and dropping a data source member onto the Form.

 2006 Pearson Education, Inc. All rights reserved. 37 Fig | Displaying a table on a Form using a series of Label s and TextBox es.

 2006 Pearson Education, Inc. All rights reserved. 38 Fig | Dataset Designer for the AddressBookDataSet after adding a query to AddressesTableAdapter.

 2006 Pearson Education, Inc. All rights reserved. 39 Fig | Design view after adding controls to locate a last name in the address book.

 2006 Pearson Education, Inc. All rights reserved. 40 Fig | Viewing the DataBindings.Text property of a TextBox in the Properties window.

 2006 Pearson Education, Inc. All rights reserved. 41 Outline XMLWriter.cs (1 of 3)

 2006 Pearson Education, Inc. All rights reserved. 42 Outline XMLWriter.cs (2 of 3)

 2006 Pearson Education, Inc. All rights reserved. 43 Outline XMLWriter.cs (3 of 3)

 2006 Pearson Education, Inc. All rights reserved. 44 Outline Players.xml