Beginning VB 2008 Databases From Novice to Professional phần 8 ppsx

... namespace to Form1 .vb: Imports System.Data.SqlClient 8. Insert the code in Listing 16-1 into the click event handler for button1. This will pro- vide the first exception. Listing 16-1. button1_Click() Dim ... values are None and Anchor property values are Top, Left. CHAPTER 14 ■ BUILDING WINDOWS FORMS APPLICATIONS 282 9470ch14final.qxd 3/15/ 08 1: 38 PM Page 282 Simpo PDF Merge and S...

Ngày tải lên: 12/08/2014, 10:21

... who wants to interact with databases using VB 20 08 and development tools. What This Book Covers This book covers Visual Studio 20 08, SQL Server 2005, VB 20 08, LINQ, and ADO .NET 3.5. All these tools ... relational data- bases, so every VB programmer needs to know how to access data. This book specifically covers how to interact with SQL Server 2005 databases using...

Ngày tải lên: 12/08/2014, 10:21

... operator to summarize data How It Works You begin with the SELECT list and specify the columns and their aliases as you want them to appear in the result set: select CardType , [20 08] as Year20 08, [2009] ... CardType,ExpYear from Sales.CreditCard ) piv Pivot Now you need to count the cards of particular type for the years 20 08 and 2009 as speci- fied in this statement: ( count(...

Ngày tải lên: 12/08/2014, 10:21

... teaching you how to write stored procedures, but how to use them in VB .NET. However, we’ll show you how to modify and delete stored procedures in the remainder of this chapter. Modifying Stored Procedures Now ... don’t have to be. If you work with another version of SQL, please refer to its documentation for specifics. In addition to these operators, the LIKE operator (see Tabl...

Ngày tải lên: 12/08/2014, 10:21

... code a transaction to both add a customer to and delete one from the Northwind Customers table. The Customers table has eleven columns; two columns, CustomerID and CHAPTER 8 ■ UNDERSTANDING TRANSACTIONS130 9470ch08final.qxd ... you’ll ever need to know. At any rate, this chapter will give you what you need to know to start experimenting with it. Try It Out: Creating a Table to...

Ngày tải lên: 12/08/2014, 10:21

... project to CommandSql. Rename the Module1 .vb file to CommandSql .vb, and replace the generated code with the code in Listing 11-1. 185 CHAPTER 11 9470ch11final.qxd 3/3/ 08 5:17 PM Page 185 Simpo ... information. 1. Add a VB. NET Console Application project named ConnectionDisplay to the Chapter10 solution. 2. Rename Module1 .vb to ConnectionDisplay .vb. When prompted to rena...

Ngày tải lên: 12/08/2014, 10:21

... property to True, which is set to False by default. 6. Drag a Label control from the Toolbox to below the TextBox and set its AutoSize prop- erty to False. Also, set the Label’s Font Size property to ... Listing 18- 3 into DisplayImages .vb before the call to InitializeComponent(). You can access DisplayImages .vb by right-clicking DisplayImages .vb and selecting View Code, w...

Ngày tải lên: 12/08/2014, 10:21

... property, 280 – 285 MDI forms, 288 –291 creating child form, 289 –291 creating parent form with menu bar, 288 – 289 overview, 267–2 68 setting properties, 274–276 user interface design, 2 68 270 Windows ... character, 46, 48 _ wildcard, 72 ~% character, 47 !< operator, 71 < operator, 71 <= operator, 71 <> operator, 71 = operator, 71 != operator, 71 > operator, 71 >=...

Ngày tải lên: 12/08/2014, 10:21

... Figure 4-7. select CustomerID, TerritoryID , Row_Number() over (Partition by TerritoryID order by CustomerID) as [RowCount] from Sales.Customer Where TerritoryID in (1,2) AND CustomerID Between 1 ... beginning, middle, or end. In this case, book titles such as “C# 20 08: An Introduction,” “Accelerated C# 20 08, ” and Beginning C# 20 08 Databases will be listed. • _ (underscore): A...

Ngày tải lên: 08/08/2014, 18:21

... event for the button. Double-click button1, and it will open the code editor with the button1_click event. Insert the code in Listing 8- 2 into the code editor. Listing 8- 2. button1_Click() SqlConnection ... T-SQL H ere, you’ll code a transaction to both add a customer to and delete one from the N orthwind Customers table. The Customers table has eleven columns; two columns, C usto...

Ngày tải lên: 08/08/2014, 18:21