I'm hoping someone can explain to me exactly what the SQLConnection.Open() method does, especially when the database is stopped. I'm trying to include some error processing in my program, specifically to ensure the database is up and running. But even with the database stopped, the Open() statement works fine. Later, when I try to read from the database, I get the error. I'd like to stop it before it gets any further. Why is the Open() statement "working" even with the database stopped?
Hi, When i run my script it gets about 5 lines before the bottom and kicks this out SQLConnection.Open() An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) Does this mean that SQL Server 2005 Express doesnt allow remote connections and is there anything i can do to get round this (im running it locally)? My data Source is - SQLDataSource1 - Picturesdb.MDF and my local server is Localhost:1921. Code behind Below, Imports System.IO Imports System.DataImports System.Data.SqlClient Partial Class WebForm1 Inherits System.Web.UI.PageProtected Sub btnUpload_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpload.Click Dim strFileName As String Dim strFilePath As String Dim strFolder As StringDim SQLConnection As Data.SqlClient.SqlConnection Dim SQLCommand As Data.SqlClient.SqlCommand strFolder = "C:Documents and SettingsRoss HintonMy DocumentsVisual Studio 2005WebSitesuploadsiteimagesfolder" strFileName = oFile.PostedFile.FileName strFileName = Path.GetFileName(strFileName) If (Not Directory.Exists(strFolder)) Then Directory.CreateDirectory(strFolder) End If strFilePath = strFolder & strFileName If File.Exists(strFilePath) Then lblUploadResult.Text = strFileName & " already exists on the server!" ElseSQLConnection = New SqlConnection("localhost:1921")SQLCommand = New SqlCommand SQLCommand.CommandType = CommandType.StoredProcedure SQLCommand.CommandText = "spInsertImageName" ' your sp name SQLCommand.Connection = SQLConnection SQLConnection.Open() SQLCommand.Parameters.AddWithValue("@image", strFileName) ' sp parameter name SQLCommand.ExecuteNonQuery() oFile.PostedFile.SaveAs(strFilePath) lblUploadResult.Text = strFileName & " has been successfully uploaded." End If frmConfirmation.Visible = TrueEnd Sub End Class
Hello, I started profiling a website that i'm developing yesterday (asp.net 2.0) and noticed that sqlconnection.open is ridiculously slow (between 3-10 seconds) when using integrated security=true in the connection string. If I use SQL authentication instead and pass the username and password in the connection string, sqlconnection.open is instantaneous. My enviornment is as follows:
I have a sql server project where I have added 1 stored procedure (named StoredProcedure1) and 1 class (named MyClass). MyClass has two functions Func1() and Func2(). The stored procedure simply instantiates MyClass and calls Func1().
Func1() creates a SqlConnection object using "context connection=true" - opens the connection and then calls Func2(). Func2() also creates a SqlConnection object using "context connection=true" - and attempts to open the connection. However when attempting to the Open() call inside Func2(), the code just exits. What gives? The code is pasted below, thanks!
*******THE STORED PROCEDURE************** using System; using System.Data; using System.Data.SqlClient; using System.Data.SqlTypes; using Microsoft.SqlServer.Server; using SqlServerProject1;
public partial class StoredProcedures { [Microsoft.SqlServer.Server.SqlProcedure] public static void StoredProcedure1() { // Put your code here MyClass obj = new MyClass(); obj.Func1(); obj = null; } };
*******THE CLASS "MYCLASS"************** using System; using System.Collections.Generic; using System.Text; using System.Data; using System.Data.SqlClient; using System.Data.SqlTypes; using Microsoft.SqlServer.Server;
public class MyClass { public MyClass() {
}
public void Func1() { using ( SqlConnection conn = new SqlConnection("context connection=true") ) { conn.Open();
Func2(); conn.Close(); } }
public void Func2() { using ( SqlConnection conn = new SqlConnection("context connection=true") ) { if ( conn.State != ConnectionState.Open ) conn.Open();
if ( conn.State == ConnectionState.Open ) conn.Close(); } } }
We have a Prinicipal, a Mirror and a Witness server. We have automatic failover configured between the Prinicipal and Mirrored server. When we stop MMSQL service on Prinicipal, not all the databases failover to the Mirrored instance. Any suggestions would be welcomed as we have a tight deadline to get this in Production.
I had a Database maintenance plan setup to do complete backup of my SQL Server 2000 database. Same thing was done for the transaction logs as well. And they had resulted in successful backups sometime ago.
But I have noticed that Backups are no longer happening. I cannot find the backup files where they are supposed to land. Some how, I cannot find any error messages relating why the backups are not getting created.
I do not know where I can look up the logs/reports of what possibly is going wrong. I have looked at the usual places and they are not there, for the times I have deliberately tried to submit the jobs.
In the VB 2005 Express, I can get the SqlConnection and ConnectionString of a Database "shcDB" in the Object Explorer of SQL Server Management Studio Express (SSMSE) by the following set of code: ///--CallshcSpAdoNetVB2005.vb--////
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.SqlTypes
Public Class Form1
Public Sub InsertNewFriend()
Dim connectionString As String = "Data Source=.SQLEXPRESS;Initial Catalog=shcDB;Integrated Security=SSPI;"
Dim connection As SqlConnection = New SqlConnection(connectionString)
Try
connection.Open()
Dim command As SqlCommand = New SqlCommand("sp_insertNewRecord", connection)
command.CommandType = CommandType.StoredProcedure ....................................... etc. /////////////////////////////////////////////////////// If the Database "shcDB" and the Stored Procedure "sp_inertNewRecord" are in the Database Explorer of VB 2005 Express, I plan to use "Data Source=local" in the following code statements to get the SqlConnection and ConnectionString: ......................... ........................
Dim connectionString As String = "Data Source=local;Initial Catalog=shcDB;Integrated Security=SSPI;"
Dim connection As SqlConnection = New SqlConnection(connectionString)
Try
connection.Open()
Dim command As SqlCommand = New SqlCommand("sp_insertNewRecord", connection)
command.CommandType = CommandType.StoredProcedure ........................ etc.
Is the "Data Source=local" statement right for this case? If not, what is the right code statement for my case?
I've a very basic doubt about database mirroring. I did setup a database mirroring session with the help of SQL Server Management Studio between the server A (db1) and B(db1). When is stop database mirroring by using the command button "Stop Mirroring" available in the mirroring page of SQL Server Management Studio , the mirror database{ B(db1) } goes to state "Restoring...". After stopping the mirroring i'm not able to access the mirror database.
Can you please tell me how to bring mirror database B(db1) to operation mode so that we can start working with that database?
I get the below error only when my IDE open. It connects well when it is found closed. [SqlException (0x80131904): Cannot open user default database. Login failed.Login failed for user 'JPASPNET'.] I could solve this by giving the logged in windows user to impersonate under IIS window > WEBSITE > ASP.NET tab > EDIT CONFIG > APPLICATION tab But I wish someone could give me the proper solution. I almost tried all from giving ASPNET user as a administrator to configuring the same in Express management tool. Environment: XP pro, VWD and SQL Express
I'm currently writing an windows application where a LOT of threads connect to database and send small amount of data. I'd like to ask you for the best approach to do it.
The way it's implemented now:
Each therad uses it's own SqlConnection sends few bytes of data and closes the SqlConnection. Each thread has to send initliazation data which i guess is few times bigger then accual data and then it has to close connestion even more bytes that could be avoided are sent.
The way i'd like it to be:
There is only one SqlConnection all therads share it. It's opened when the applications starts and closed when it's application is closed. This way i send initialization data only once and by doing this i can save some bandwidth.
Does SqlConnection operations has to be in critical area? Can it be used pararelly by many threads? Maby there is better way to do it? Is it recomended to close SqlConnection as soon as possible after query? If so why?
I have MS-Access as data source for one of the reports. I can preview the report fine from BI studio however, it does not work when I deploy it on report server.
The error is :
An error has occurred during report processing. Cannot create a connection to data source '<data source name>'.
The Microsoft Jet database engine cannot open the file '<UNC location of the MS-Access database>'. It is already opened exclusively by another user, or you need permission to view its data.
MS-Access database is located on a different server.
Any help to solve this? I understand it has something to do with permission both on server where reporting service is running as well as the server where MS-access database is located. Pls help.
We have a back end procedure that inserts/updates records in a table. Usually the upload file will have around 20k records. This procedure is called from our application which is designed using hibernate,struts.
Upload is getting completed. But after the upload is over and control goes to application code, we are again hitting the above table to get some details. Is this the root cause for the below issue?
This is what we get in application logs,
SQL Error: 4060, SQLState: S1000 2007-04-30 16:17:27,840 - ERROR [TP-Processor2] JDBCExceptionReporter.logExceptions(58) | Cannot open database "sdgebis" requested by the login. The login failed. 2007-04-30 16:17:27,840 - WARN [TP-Processor2] JDBCExceptionReporter.logExceptions(57) | SQL Error: 18456, SQLState: 28000 2007-04-30 16:17:27,840 - ERROR [TP-Processor2] JDBCExceptionReporter.logExceptions(58) | Login failed for user 'sa'.
2007-04-30 16:17:27,856 - WARN [TP-Processor2] SQLErrorCodeSQLExceptionTranslator.translate(279) | Unable to translate SQLException with errorCode '4060', will now try the fallback translator
When I try to open a .MDF file with SQL Server Management Studio Express last version I get an error : There is no editor available for "DATABASE.MDF" Make sure the application for the file type (.MDF) is installed. How can I open the MDF file.I tried to use also the database NORTHWIND.MDF provided with MSSQL 2000 sample but the same error. What can I do ? I am using Microsoft SQL Server 2005 Express. I want to open the .MDF file to create a index for Full Text Search. Thank You !
Hi i am currently doing my final year project. I am using MS SQL and ASP. I uncounter the error below when i am doing my login.
Error Type: Microsoft OLE DB Provider for ODBC Drivers (0x80004005) [Microsoft][ODBC SQL Server Driver][SQL Server]Cannot open database requested in login 's01673925'. Login fails.
this is my connection string: Set connection = Server.CreateObject("ADODB.Connection") connection.Open "DSN=LocalServer1;UID=s01673925;PWD=password;DATABA SE=s01673925"
Can any1 help mi by telling mi why i cant connect 2 database?
// Initialize the property set values.and create the data source object. for (ULONG i = 0; i < sizeof(rgProps)/sizeof(rgProps[0]); i++) { VariantInit(&rgProps[i].vValue); }
hr = CoCreateInstance(CLSID_SQLSERVERCE_3_5, NULL, CLSCTX_INPROC_SERVER, IID_IDBInitialize, (LPVOID *) &pIDBInitialize); if (FAILED(hr)) { //Send an error-specific message and do error handling. goto Exit; }
// Create a session that supports commands. hr = pIDBProperties->QueryInterface(IID_IDBCreateSession, (void **) &pIDBCrtSession);
........... Example from MSDN. . So after pIDBProperties->QueryInterface hr become E_NOINTERFACE . And i dont know why it happens. database - is a sample database which tou can find in Microsoft SQL Server Compact Editionv3.5Samples. Please help !
My mdf file was deleted. I was able to restore the said file but unfortunately I can no longer open it.
I have also noticed that the recovered mdf file was smaller than the file before it was deleted.
What can I do to open the database file? I have tried the following lines using osql utility.
1> use db1sql1 2> go Msg 946, Level 14, State 1, Server JDI11-31, Line 1 Cannot open database 'db1sql1' version 525. Upgrade the database to the latest version.
I wrote a web application and tested it on the development pc and everything is working well. Then I created a Virtual Directory on my Test pc and transfered the developed site using the copy project in Visual Studio 2005. In my test pc I have .Net Framework 2.0 with SQL Express installed. When I tried to run the site I get the following error message. Cannot open database "C:InetpubwwwrootReportsApp_Dataaspnetdb.mdf" requested by the login. The login failed.Login failed for user 'W2678ASPNET' I checked permissions and everything is ok. I strongly believe this error happens because I do not have access writes to the database. But when I open the SQL Server Management Studio, I cannot see my database there. I am totally new with this SQL server express edition that comes with Visual Studio 2005. I do not know how to add the ASPNET account to the database , because my application attaches the file at run time. Could some one tell me how to do this? Any help is greaty appriciated.
Hello everybody, I am working with SqlExpress and MSSQL Server Management Studio Express and do not manage to open the aspnetDB .mdf database in which I am storing all data about my users.I woulds like to open it and to be able to request it in order to check some strange things.Actually, I'm experiencing an isssue with that database since the request just below gives me two results for only one user: SELECT Member.Password, Member.PasswordAnswer FROM aspnet_MemberShip Member, aspnet_Users Users WHERE Member.UserId=Users.UserId AND Users.UserName='Admin' Using this request returns me a user whom password is clear and an identical user whom password is hashed whereas I set PasswordFormat="Clear" in my Web.ConfigCould you explain me how I may proceed please? Thanx for your help
I've never had any issues logging in, and now today I'm getting this error: Exception Details: System.Data.SqlClient.SqlException: Cannot open database "HRIService" requested by the login. The login failed. Any have some knowledge to drop on me concerning this? Here is the entire error:Server Error in '/HRIService' Application.
Cannot open database "HRIService" requested by the login. The login failed.Login failed for user 'IT-P02ASPNET'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Cannot open database "HRIService" requested by the login. The login failed.Login failed for user 'IT-P02ASPNET'.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Hi Everyone,I'm facing this problem now.Cannot open database "C:myDB" requested by the login. The login failed.Login failed for user 'myLaptopASPNET'.May i ask how can i resolve?Please feel free to let me know the information you need.Thank You!
the UID CrpysSQL is db_owner of the table Customs.
what is wrong?
windows 2003 standard SQL 2000 Microsoft SQL Server 2000 - 8.00.194 (Intel X86) Aug 6 2000 00:57:48 Copyright (c) 1988-2000 Microsoft Corporation Enterprise Edition on Windows NT 5.2 (Build 3790: )
I attached a SQL express database created on another computer on another SQL express instance running on another computer. When I tried to open a database diagram previously created i receive the following error:
"Database diagram support objects cannot be installed because this database does not have a valid owner. To continue, first use the Files page of the Database Properties dialog box or the ALTER AUTHORIZATION statement to set the database owner to a valid login, then add the database diagram support objects."
I must mention that in the attached database the server login is mapped to the databse as db_owner role. So what's the problem ?
I have developed a database application using c# and SQL Express 2005.
I have coded a connection string that works fine on the development machine but upon publishing to another machine I am getting the following error message:
Cannot open database "name of database" requested by the login. The login failed. Login Failed for user "machine nameuser name".
The remote machine has SQL server express installed.
Now on the development machine the machine name and user names are different to that on the remote machine. I am using Windows Auth. The application successfully runs on the remote machine. It even updates the same database (as mentioned in the issue above) on a different form which all connection strings etc were created automatically by c#. I'm pretty new to all this and don't know where to go from here. Any help would be greatly appritiated.
i am getting an error ... given below and my web.config is also given below
can any one help me is my connection string right ... i am using sql server 2005 .. my system name is soft18 ..
Server Error in '/prjLogin' Application.
Cannot open database "Northwind" requested by the login. The login failed. Login failed for user 'SOFT18Administrator'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Cannot open database "Northwind" requested by the login. The login failed. Login failed for user 'SOFT18Administrator'.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[SqlException (0x80131904): Cannot open database "Northwind" requested by the login. The login failed. Login failed for user 'SOFT18Administrator'.] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +115 System.Data.SqlClient.TdsParser.ThrowExcepti.................... ........................ ................ ...................
I have developed a database application using c# and SQL Express 2005.
I have coded a connection string that works fine on the development machine but upon publishing to another machine I am getting the following error message:
Cannot open database "name of database" requested by the login. The login failed. Login Failed for user "machine nameuser name".
The remote machine has SQL server express installed.
Now on the development machine the machine name and user names are different to that on the remote machine. I am using Windows Auth. The application successfully runs on the remote machine. It even updates the same database (as mentioned in the issue above) on a different form which all connection strings etc were created automatically by c#. I'm pretty new to all this and don't know where to go from here. Any help would be greatly appritiated.
hi experts, acutually i had configured the online application in my local pc..when i try to configure the database , it seems to be a vc++ intellisense database file(.ncb extension)..Actually i am working on ms sqlserver..i don't know how to open the vc++ database in mssqlserver...pls help me.. regards senthil.d
<add name ="ASPNETDBConnectionString1" connectionString ="Data Source= .SQLEXPRESS; Integrated Security = True; DataBase = ASPNETDB.MDF; User ID = MyWindowsUserName; Password = MyWindowsPassword; User Instance = False; Connect Timeout = 30" providerName ="System.Data.SqlClient"/>
I tried to research on the internet and i got a solution on changing the permissions for this database to enable user SystemName/ASPNET, but iam not able to access this ASPNETDB.MDF from SqlServer and if i go to server explorer in vs2005, i dint know where to chage the permissions.
Hi Team I am working on a .net project, sql server 2000 based one. Now when iam connection to database server (remote) then me getting an error that the user cannot open the default database. I have made the database > all tasks > take offline. But after that I cant open the sql server thru the enterprise manager and query analyzer. How can I do the database online? Thanks Rajesh
I receive this error when choosing the data connection in TableAdapter Wizard for me to reference the ASPNETDB.mdf database.
Failed to open a connection to the database
"The header for file 'C:InetpubwwwrootWebsites4App_DataASPNETDB.MDF is not valid databasefile header. The FILE SIZE property is incorrect.An attempt to attach an auto-named database exists, or specified file cannotbe opened, or it is located on UNC share."
Check the connection and try again.
I already have the connection at config but the error persists.
When i try to open the Adventureworks database with SQL Server 2005 Express, it throws the following error:
Cannot open user default database. Login failed.Login failed for user 'SK-RIY37EQBYCYZsk'. Dim connString As String = ConfigurationManager.ConnectionStrings("AdWorkConnectionString").ConnectionString <add name="AdworkConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDataAdventureWorks_Data.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True" providerName="System.Data.SqlClient" />
Hi there i'm having a bit of trouble with my asp.net authorisations and was wondering if anyone would have any idea how I can solve it - as it's driving me nuts!.
On my local machine (I've MDSN) running with Web Matrix - my connection works fine.
However since i've uploaded it to my Hoster - Forms and DB - I get the error
Cannot open database requested in login 'TestDB'. Login fails. Login failed for user AUTHORITYNET SERVICE'.
Can anyone give me any pointers on where I should be going?
I've been told by my Hosting co. that the server should be set to localhost (as shown) but thats about it!