Beginning C# 2005 Databases From Novice to Professional phần 8 doc

... an expedient way to cause an ADO.NET exception. You specify the command for a stored procedure call, but you don’t specify the stored procedure to call // Specify that a stored procedure is to be executed cmd.CommandType ... Fail In this example, you’ll try to insert an invalid new customer and try to delete an undeletable one. 1. Run sp_Trans_Test to add customer a and delete cus...

Ngày tải lên: 09/08/2014, 14:20

... 0.9 98& quot; 5 28 page count BOOKS FOR PROFESSIONALS BY PROFESSIONALS ® Beginning C# 2005 Databases: From Novice to Professional Dear Reader, Thousands of C# programmers have become database professionals ... Hammer Pedersen, and Jon Reid Beginning C# 2005 Databases From Novice to Professional CYAN MAGENTA YELLOW BLACK PANTONE 123 CV ISBN 1-59059-777-X 9 781...

Ngày tải lên: 09/08/2014, 14:20

... "Wilmington"; CHAPTER 8 ■ INTRODUCING DATASETS AND DATA ADAPTERS1 98 777Xch08final.qxd 11/ 18/ 06 2:45 PM Page 1 98 // query string sql = @" select contactname, country from customers "; // ... ModifyDataTable.cs (Listing 8- 4) to delete a row from the database: 1. Add a new C# Console Application project named PersistDeletes to your Chapter 08 solution. Re...

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... Types SQL Data Type C# Type Description money decimal Values from -922,337,203, 685 ,477. 580 8 through 922,337,203, 685 ,477. 580 7 smallmoney decimal Values from -214,7 48. 36 48 through 214,7 48. 3647 Character ... SQL 58 Figure 3-10. Shippers after updating a row 777Xch03final.qxd 11/ 18/ 06 3:41 PM Page 58 CHAPTER 2 ■ GETTING TO KNOW OUR TOOLS 29 Figure 2-17. Restoring the Nor...

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... INTRODUCING ADO.NET 87 Figure 4-11. Specify data source name and SQL Server to connect to Figure 4-12. Specify SQL Server authentication 777Xch04final.qxd 11/ 18/ 06 3:39 PM Page 87 Introducing Connections Before ... connecting to a local SSE instance, but it might happen in trying to connect to a SQL Server instance on another server. • A hardware problem: Again, this is unlike...

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... @" select productname, unitprice from products where unitprice < 20 "; CHAPTER 8 ■ INTRODUCING DATASETS AND DATA ADAPTERS 177 777Xch08final.qxd 11/ 18/ 06 2:44 PM Page 177 How It Works This code is a bit different from ... connection to a data source while waiting for users to make requests is an enormous waste of precious resources. CHAPTER 8 ■ INTRODUCING DATASETS A...

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... for customer WOLZA from Warszawa to Gdansk. Now click the Save Data button. The new row is now inserted into the Customers table in the database, and the city for WOLZA has been updated too. Close ... rerun the project to prove this. 9. Put Customers back the way it was by changing WOLZA’s city back to Warszawa and deleting customer zzz. Click Save Data to propagate the changes t...

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... 289 Figure 11 -8. Using date and time functions 777Xch11final.qxd 11/ 18/ 06 2: 38 PM Page 289 from orders o inner join employees e on o.employeeid = e.employeeid inner join customers c on o.customerid ... typically used to pass values between stored procedures, but sometimes they need to be accessed from C#, so let’s write a stored procedure with an output parameter so we can use...

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... to generate XML from tables with T-SQL’s TO XML clause • How to query XML documents with T-SQL’s OPENXML function • How to store and retrieve XML documents using the xml data type What Is ... 15 -8 to class Form1. CHAPTER 15 ■ WORKING WITH ADO.NET EVENTS 393 777Xch15final.qxd 11/ 18/ 06 2:34 PM Page 393 1. Insert the code in Listing 15-5 into the click event handler for the thi...

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... Customers table, so tha t’ s all we’ll cover here. 5. Replace the code in LinqToTyped.cs with the code in Listing 18- 3. CHAPTER 18 ■ INTRODUCING LINQ 481 Figure 18- 18. C ustomers table added to ... types, 60–61 ■INDEX 489 Find it faster at http://superindex.apress.com/ 777Xidxfinal.qxd 11/ 18/ 06 2: 28 PM Page 489 examples using, 125, 127 executing stored procedures in C#, 3 28 i...

Ngày tải lên: 09/08/2014, 14:20