Beginning VB 2008 Databases From Novice to Professional phần 4 potx

... GETTING TO KNOW ADO.NET 144 947 0ch09final.qxd 3/3/08 5: 24 PM Page 144 Simpo PDF Merge and Split Unregistered Version - http://www.simpopdf.com from the checking account but not added to the savings ... 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 ■ UNDERS...

Ngày tải lên: 12/08/2014, 10:21

... who wants to interact with databases using VB 2008 and development tools. What This Book Covers This book covers Visual Studio 2008, SQL Server 2005, VB 2008, 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 VB...

Ngày tải lên: 12/08/2014, 10:21

... so can ’ t be used directly; if you try to do so, you will get an error. CHAPTER 4 ■ WRITING DATABASE QUERIES 44 947 0ch04final.qxd 2/21/08 3:03 PM Page 44 Simpo PDF Merge and Split Unregistered ... belong to one cus- tomer . Here, Customers is referred to as the par ent table , and Orders is the child table in the relationship. CHAPTER 3 ■ GETTING TO KNOW RELATIONAL DATABASES...

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 ... column that’s NULL, use the IS [NOT] NULL operator (see Table 5 -4) . Table 5 -4. The IS [NOT] NULL Operator Operator Description Example IS NULL Allo ws y ou to select r...

Ngày tải lên: 12/08/2014, 10:21

... CommandScalar to your Chapter11 solution. Rename Module1 .vb to CommandScalar .vb. 2. Replace the code in CommandScalar .vb with the code in Listing 11-2. Listing 11-2. CommandScalar .vb Imports System Imports ... you’ll see how to write a program to display connection information. 1. Add a VB. NET Console Application project named ConnectionDisplay to the Chapter10 solution....

Ngày tải lên: 12/08/2014, 10:21

... in Browser option to see the output. Figure 15-8. Split view of your Web Site project CHAPTER 15 ■ BUILDING ASP.NET APPLICATIONS3 04 947 0ch15final.qxd 3/15/08 2 :44 PM Page 3 04 Simpo PDF Merge ... Submit button; you will see a message similar to the one shown in Figure 14- 10. 12. Click OK, and then close the Windows Application form. CHAPTER 14 ■ BUILDING WINDOWS FORMS APPLICATIONS...

Ngày tải lên: 12/08/2014, 10:21

... Form1 .vb to Events .vb, and also modify the Text property of the form to Events. 2. Open the Toolbox and drag a Button control over to the form. Select the Button con- trol, navigate to the Properties ... 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...

Ngày tải lên: 12/08/2014, 10:21

... Objects), 143 ADO.NET, 143 –168 ar chitectur e, 147 – 149 coding tr ansactions in, 138– 141 exceptions, 313–321 handling ex ceptions , 317 motiv ation behind, 144 moving from ADO to, 144 – 147 ODBC data ... 22 text, assigning to commands, 188–190 text data, 355–3 64 loading from file, 356–358 overview, 343 retrieving data from text columns, 361–3 64 text data types, 343 – 344...

Ngày tải lên: 12/08/2014, 10:21

... count Books for professionals By professionals ® Beginning C# 2008 Databases: From Novice to Professional Dear Reader, This book focuses on accessing databases using C# 2008 as a development tool in ... author of Beginning VB 2008 Databases: From Novice to Professional US $39.99 Shelve in Programming Languages/C# User level: Beginner–Intermediate Agarwal, H...

Ngày tải lên: 08/08/2014, 18:21

... conn.BeginTransaction(); CHAPTER 8 ■ UNDERSTANDING TRANSACTIONS1 54 9004ch08final.qxd 12/13/07 4: 13 PM Page 1 54 9004ch07final.qxd 12/13/07 4: 15 PM Page 1 34 Autocommit Transactions Autocommit mode is the default transaction ... 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 colum...

Ngày tải lên: 08/08/2014, 18:21