2/12/2008 9:30:29 PM
[This topic is pre-release documentation and is subject to change in future releases. Blank topics are included as placeholders.]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.
This sample shows how to fetch a single row using IRow. This sample is not supported on IA64.
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
For more information on this sample, see How to: Fetch Columns Using IRow::GetColumns (or IRow::Open) and ISequentialStream in Books Online.
Languages
This sample uses Transact-SQL and Visual C++.
Prerequisites
Before running this sample, make sure the following software is installed:
-
SQL Server or SQL Server Express including Database Engine.
You can download SQL Server Express from theMicrosoft Download Center .
-
The AdventureWorks database which is included with SQL Server, and is also available at the
Microsoft SQL Server Developer Center .
-
The SQL Server Database Engine samples. These samples are included with SQL Server. You can download the latest version of the samples at the
Microsoft SQL Server Developer Center .
-
.NET Framework SDK 2.0 or Microsoft Visual Studio 2005. You can obtain .NET Framework SDK free of charge. See Installing the .NET Framework SDK.
Building the Sample
-
This sample connects to your computer's default SQL Server instance (on some Windows operating systems, you will need to change (localhost) or (local) to the name of your SQL Server instance). To connect to a named instance, change the connection string from
L"(local)"
toL"(local)\\name"
, wherename
is the named instance. By default, SQL Server Express installs to a named instance.
-
Make sure your INCLUDE environment variable includes the directory that contains sqlncli.h.
-
The sample requires you to execute the following Transact-SQL statements, which you can find in the sample's scripts directory:
In SQL Server Management Studio, load and execute the Scripts\setup.sql script or execute the following command in a Command Prompt window:USE AdventureWorks GO IF EXISTS (SELECT name FROM sysobjects WHERE name = 'MyTable') DROP TABLE MyTable GO CREATE TABLE MyTable ( col1 int, col2 varchar(50), col3 char(50), col4 datetime, col5 float, col6 money, col7 sql_variant, col8 binary(50), col9 text, col10 image ) GO /* Enter data. */ INSERT INTO MyTable values ( 10, 'abcdefghijklmnopqrstuvwxyz', 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', '11/1/1999 11:52 AM', 3.14, 99.95, CONVERT(nchar(50), N'AbCdEfGhIjKlMnOpQrStUvWxYz'), 0x123456789, REPLICATE('AAAAABBBBB', 500), REPLICATE(0x123456789, 500) ) GO
sqlcmd -E -I -i Scripts\setup.sql
-
If you are using Visual Studio, load the FetchColumns_A.sln file and build it.
-
If you are using MSBuild.exe, invoke MSBuild.exe at a command prompt, passing it the FetchColumns_A.sln file:
MSBuild FetchColumns_A.sln
Running the Sample
-
From Visual Studio, invoke Start Without Debugging (CTRL+F5).
-
If you built with MSBuild.exe, invoke FetchColumns_A.exe.