Connect to a SQL Server 2008 Database From a Web Application - CodeProject

3/28/2015 Connecttoasqlserver2008databasefromawebapplicationCodeProject

http://www.codeproject.com/Questions/521806/Connectplustoplusaplussqlplusserverplusplusdat 1/4

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Connect to a sql server 2008 database from a webapplication

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Hello,I want to create a simple web application to learn asp.net.I'm trying to practice a sql server 2008 in the same time and connect the application with thedatabase.My question is how can i set a local database with my sql server management studio? and how i canconnect it with the asp.net application?I saw a lot of tutorials on the net but i failed when i tried them, i had lot of errors and i'm new withsql server and asp.net and i could not solve any of them.I'm getting the following error when i'm trying to connect to the database from the code:Login failed for user ''And the following error when i try to set the database log in and permissions:TITLE: Microsoft SQL Server Management StudioAlter failed for User 'dbo'. Microsoft.SqlServer.SmoFor help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=10.50.1447.4+KJ_RTM.1002130103+&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.FailedOperationExceptionText&EvtID=Alter+User&LinkId=20476ADDITIONAL INFORMATION:An exception occurred while executing a TransactSQL statement or batch.Microsoft.SqlServer.ConnectionInfoCannot alter the user 'dbo'. Microsoft SQL Server, Error: 15150For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.5000&EvtSrc=MSSQLServer&EvtID=15150&LinkId=20476BUTTONS:OKDo anyone know a good tutorial that leads me step by step?

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quick answers



Posted 4Jan13 9:49amBrainy Girl 436

Edited 4Jan13 9:57amAbhishek Pant 18K

v2

2 solutions Top Rated Most Recent

Rate this:Solution 1

Posted 4Jan13 10:05amMika Wendelius 252.2K

Espen Harlinn at 6Jan13 9:14am

Mika Wendelius at 6Jan13 10:56am

Rate this:Solution 2

Posted 4Jan13 10:10amMember 9581488 1.8K

Edited 4Jan13 10:19amAndr Kraak 90.2K

v2

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In order to connect to the database, you need to use a SqlConnection[^] have a look at the examplein the end.To get the connection string right, visit http://www.connectionstrings.com/sqlserver2008[^]When you use local Sql Server instance, you can define a name of the computer or you can refer itusing . dot which is a shortcut for local computer in connection strings.Not sure why you're trying to alter any user. When you connect to the database, you either use SqlServer user authentication which means that you define a user name with a password in order toconnect to the database or you use windows authentication which again means that your currentcredentials will be used for the connection.If you use Windows authentication, notice that the credentials that are used with IIS are used for theconnection. For example, have a look at Setting up SQL Server 2008 for an ASP.NET website on IIS7.0[^]

Comments

5'ed!

Thanks :

http://blog.sqlauthority.com/2008/11/02/sqlserverfixerrorloginfailedforuserusernametheuserisnotassociatedwithatrustedsqlserverconnection/[^]

Please refer above link.

Thanks



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Connect to a SQL Server 2008 Database From a Web Application - CodeProject