Readme_Hello World Sample

Article
08/31/2009

This sample works only with SQL Server 2005 and SQL Server 2008. It will not work with any version of SQL Server earlier than SQL Server 2005.

The Hello World sample demonstrates the basic operations that are involved in creating, deploying, and testing a simple common language runtime (CLR) integration-based stored procedure. This sample also demonstrates how to return data through an output parameter and through a record, which are dynamically constructed by the stored procedure and returned to the client.

Install directory: C:\Program Files\Microsoft SQL Server\100\Samples\Engine\Programmability\CLR\HelloWorld\

SQL Server samples and sample databases must be downloaded and installed before you can view or work with them. For more information, see Considerations for Installing SQL Server Samples and Sample Databases.

Scenario

Jane is a developer for Adventure Works Cycles. She has to understand the basics in using CLR integration stored procedures.

Languages

Transact-SQL, Visual C# and Visual Basic.

Features

The Hello World sample uses the following features of SQL Server.

Application Area	Features
Overall	CLR, metadata

Prerequisites

Before running this sample, make sure the following software is installed:

Microsoft SQL Server or SQL Server Express. You can obtain SQL Server Express free of charge from the SQL Server Express Documentation and Samples Web site
The AdventureWorks database that is available at the SQL Server Developer Web site.
The SQL Server Database Engine samples that are available at the SQL Server Developer Web site.
.NET Framework SDK 2.0 or Microsoft Visual Studio 2005. You can obtain .NET Framework SDK free of charge. See Installing the .NET Framework Documentation.

Building the Sample

If you have not already created a strong name key file, generate the key file using the following instructions.

To generate a strong name key file

Open a Microsoft Visual Studio 2005 command prompt. Click Start, point to All Programs, point to Microsoft .NET Framework SDK 2.0, and then click SDK Command Prompt.

-- or --

Open a Microsoft .NET Framework command prompt. Click Start, point to All Programs, point to Microsoft .NET Framework SDK 2.0, and then click SDK Command Prompt.
Use the change directory command (CD) to change the current directory of the command prompt window to the folder where the samples are installed.

Note

To determine the folder where samples are located, click the Start button, point to All Programs, point to Microsoft SQL Server, point to Documentation and Tutorials, and then click Samples Directory. If the default installation location was used, the samples are located in <system_drive>:\Program Files\Microsoft SQL Server\100\Samples.
At the command prompt, run the following command to generate the key file:

sn -k SampleKey.snk

Important

For more information about the strong-name key pair, see "Security Briefs: Strong Names and Security in the .NET Framework" in the .NET Development Center on MSDN.

To build the Hello World sample

Compile the sample by using Visual Studio 2005 and the provided Visual Studio solution, or by using Microsoft MSBuild, which is included in the .NET Framework SDK 2.0. Run a command similar to the following at a command prompt:

msbuild /nologo /verbosity:quiet /property:Configuration=Debug CS\HelloWorld.sln
Make sure that the AdventureWorks database is installed.
If you did not install the SQL Server engine samples in the default location, modify the path in the CREATE ASSEMBLY portion of the script in Scripts\InstallCS.sql and Scripts\InstallVB.sql to refer to the location where the samples were installed.
If you are not an administrator for the SQL Server instance you are using, you must have an administrator grant you CreateAssembly permission to complete the installation.
Open the scripts\installCS.sql or scripts\installVB.sql file, depending on whether you compiled the Visual C# project or the Visual Basic project, in Microsoft SQL Server Management Studio. Run the script that is contained in the file, or run a command similar to the following in a command prompt window:

sqlcmd -E -I -i Scripts\InstallCS.sql

Running the Sample

To run the Hello World sample

Open the scripts\test.sql file in Management Studio. Run the script that is contained in the file, or run the following command in a command prompt window:

sqlcmd -E -I -i Scripts\test.sql

Removing the Sample

To remove the Hello World sample

Open the scripts\cleanup.sql file in Management Studio. Run the script that is contained in the file, or run the following command in a command prompt window:

sqlcmd -E -I -i Scripts\cleanup.sql

Comments

The CLR for SQL Server 2008 or SQL Server Express must be enabled for this sample to work correctly.

Samples are provided for educational purposes only. They are not intended to be used in a production environment and have not been tested in a production environment. Microsoft does not provide technical support for these samples. Sample applications and assemblies should not be connected to or used with your production SQL Server database or your report server without the permission of the system administrator.