SQL Server Connectivity Error...
Mar 3, 2008
Hello All -
I am using SQL server 2005 sp1 to work with my applications... and i am using ODBC connection to communicate with SQL serrver...
The connectivity has been working fine for more than a 6 months now .... and suddenly it thows an error ...
"General network error. Check your network documentation.ConnectionRead (recv())."
There about 10 applications accessing SQL server... and all the applications throws this same error...
I intially thought it migjht be bacuase some applications are over utilizing the SQL connection and not closing them properly... but i noticed the connection opened in the Activity monitor are the same as it supposed to be ... no extra unwanted connection opened...
I also noticed that SQLserver.exe process is utilizing almost all the RAM memory and trying to allocate more page memory.... so i restarted the SQL sever service and that reinstated all the connectivity properly....
in couple of days .... the memory utilization again reached the max and this problem started again and i had to restart the SQL server again... and this problem happens every 2 days...
I know SQL server is using up those memory for caching purpose which is normal... but Y would this cause the connectivity to fail...
Is it a problem in SQL server 2005 SP1 ... shd i upgrade it to SP2?
If some of my application is causing this how would i narrow it down to that application and pin point on that particular one?
The thrown error does not have much information for it to guide me in a direction for debugging...
Please can any one help me tro this problem?
Badri
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Aug 16, 2006
BACKGROUND:
I have two databases that support two separate applications. Both applications are required to be in sync with one anther. One application is MSSQL 2000 based and the other is Oracle 9.i. Given the complexity of the first application (host), the best solution was to use linked servers to connect the SQL database to the Oracle database.
To prevent imbalances, the host application calls a package in Oracle to update the secondary application before it completes the transaction in SQL. This way, if anything fails at any point, the entire transaction is rolled back and neither databases are updated.
PROBLEM:
Our test system is stand alone but is performing the previously mentioned transaction in the same manner to an Oracle database on a Linux server. After passing testing, we promoted the application to the live system and are experiencing the following error when the transaction attempts to call the Oracle package:
Connectivity error: [Microsoft][ODBBC SQL Server Driver][SQL Server]MSDTC on server XXXXX is unavailable.
I have done some reading, but there really isn€™t much literature on linked servers. Will someone help?
Thanks so much,
Tony
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Sep 3, 2007
Hi,
We are running one shopping site for our organisation, which includes Tomcat 5.0.28 , IIS & SQL Server 2000 SP3 hosted on platform Microsoft Windows Server 2003 Enterprise Ed. , we are running jsp pages server side and site is hosted on internet,
but it is observed that after every 1/2 days , page will throw following exception, and site get blocked.
javax.servlet.ServletException: Network error IOException: No buffer space available (maximum connections reached?) : connect
Can anybody help please?
I am beginner with JDBC - SQL Server Connectivity ,
I am giving our configuration details:
Driver Used - Microsoft SQL Server Driver 2000 SP3
Protocol Used - TCP/IP which open socket connection on default port 1433
Authentication - Mix Mode Authetication ( using sa account login)
Even setting done within LOCAL instance running on server to allow max. connections i.e 32767
My observation is that some kind of virus threat may causing this error, because if server will be rebooted, we doesn't
get any error and everything works fine.
Waiting for your suggestions and advise.
Thanks a lot.
Regards,
Mandar Velankar
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Oct 5, 2007
We recently moved from SQL 2k to SQL 2K5 and existing application stopped working with following error message.
[DBNETLIN][ConenctionOpen (SECCreateCredentials()).]SSL Security error.
The code used to make connection is as below.
Option Explicit
Const NewConnStr = "Provider=SQLOLEDB;Persistant Security=False;User ID=%DBUser;Password=%DBPassword;Initial Catalog=%DBName;Data Source=%DBServer,%DBPort;Network Library=dbmssocn"
Dim oConn
Dim sConnStr
Dim sServer
sServer = "SQLSERV01"
Set oConn = CreateObject("ADODB.Connection")
On Error Resume next
sConnStr = Replace(Replace(Replace(Replace(Replace(NewConnStr, "%DBUser", "test1"), "%DBPassword", "test1"), "%DBName", "model"), "%DBServer", sServer), "%DBPort", "1433")
Call oConn.Open(sConnStr)
This script runs under stripped-down Windows enviornment (Windows PE) with very basic components (i.e. no GUI, only command-line interface). I am trying to find out if there is any client side setting to bypass "self-generated SSL ceritificate" on server. I have tried all things on server side from disabling shared memory protocol, setting "Force Encryption" property etc. Could somebody help me with name of this property?
Also, is it possible to not use self-generate certificate on server. We don't want any kind of encryption for SQL connections.
Thanks..
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Apr 17, 2014
We are in web site development company,Previously we don't have proxy configuration, after implementing Proxy , we have an issue to connect a remote database.
The error pops "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. Error 53".
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Mar 25, 2008
Hi All,
I am a beginner in ASP.NET and trying to access sql database from using C# language thru ASP.NET . I hv tried with below code but could not able to make out. connection = new SqlConnection("Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=Northwind;Data Source=ServerName;");
connection.Open();
dataadapter = new SqlDataAdapter("select * from customers", connection);dataset = new DataSet();
dataadapter.Fill(dataset, "table1");
DataGrid1.DataSource = dataset;
DataGrid1.DataMember = "table1";
Am getting the error -
System.Data.SqlClient.SqlException: Login failed for user 'ServerNameASPNET'.
Please help.
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Oct 5, 2007
Afternoon everyone!
I would really be grateful for some advice regarding the above matter (note: am novice to the 'client/server' implementation, so would ask for your patience, pls!):
We have a front-end Access 2K app’n, which connects to some back-end data, (using a 'dsn-less' ODBC link (Access table)). The system was not in use for several months, during which time the server was re-built.
The problem I’m having is that although I can connect to the back-end data, the other users are unable to do this.
I have been looking into the problems/issues encountered so far, including:
· - Updating the dsn-less connection table within the front-end Access application (note: we have other applications which use this method for connectivity, without any problems here), i.e.
ODBC;Driver={SQL Server};APP=Microsoft Access;UID={updated username};PWD={updated password};Server={name of server};DATABASE={name of database on server}
· Re-visiting the ‘ODBC Data Source Administrator’ and checking the configuration of the ‘Microsoft SQL Server DSN Configuration’ (i.e. ‘Window authentication, using the network login’, etc).
The strange thing is that I’m able to access the back-end data, via the application without any problems at all (I’m using the full version of MS Access 2K, as need to eventually make changes to the front-en app’n. All of the users have MS Access 2K run-time only installed).
However when the user tries to log, they acquire ‘ODBC—connection to {Access application name} failed’ messages.
Up to three other users have tried to access the system, and acquire error message of the following nature:
Within the front-end application:
· ‘The {Access application name} is not available (Error No: 3151. Error: ODBC—connection to {Access application name}’ failed.)
· (1) Initially the user obtains the message: ‘The expression you entered has a function that ‘{Access application name}’can’t find.’ Then (2) I receive an ‘Action Failed’ on the ‘AutoExec’ macro (this is set up to execute a function which acquires the user’s window’s login details).
Linking to the back-end data:
· Connection failed: SQLState: ‘28000’. SQL Server Error: 18456. [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user ‘{domain_name}{users_Windows_login_name}’.
· Whilst user was logged in at my desktop, I tried to implement a ‘SQL Server ODBC Data Source Test’. However the ‘Test Results’ have been as follows
“Microsoft SLQ Server QDBC Driver Version 03.85.1117. Running connectivity tests… Attempting connection [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user ‘{domain_name}{users_Windows_login_name}’.
We currently have other client/server applications which link using the above methods (ODBC dns-less connections, etc), but have no problems with the user’s and their permissions to access these.
Would appreciate any help/suggestions/advice, etc with this.
Many thanks in advance.
Magnetar4
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Sep 27, 2007
I have a new named instance (SQL Server 2005 x64 SP2 (Build 3159) Developer edition) setup with dynamic port selection. A default instance was also running on the server prior to the named instance setup.
SQL Server Browser service is running. Remote connections are configured on the named instance. But still remote clients can only connect when the port number is specified after the instance name (servernameinstancename,9999). Without the port number, "error 26 - Error locating Server/instance specified" is thrown.
Doesn't the SQL Server Browser service eliminate the need for clients to specify the port number? What am I missing?
Thanks.
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Dec 27, 2004
Hi:
I m in new in ASP.net and can't connect sql server db with ASP.net.I write exact code.but it give error in connection string and server error some time.I found that error is in web.config file.can any one have running project of asp.net with sqlserver db..
if any one have then mail the project at this mail address..
ray_boby@hotmail.com
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Dec 13, 2005
I am using webforms for ASP .NET which has code in C#. My database is running on SQL Server 7. Whats the best way to connect to database. I have tried ODBC connection through myConnection=new SqlConnection(ConfigurationSettings.AppSettings["dsn"]);but it gives me an error that can not connect to the SQL Server 2005 or it does not allow remote connections though it is running SQL Server 7 and not SQL Server 2005. Thanks in advance.
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Feb 17, 2000
hello , i have a small problem , an associate want to connect to a micrsoft sql server under nt from a pc with only dos! can such a thing be done?
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Feb 19, 2007
I am trying to connect to my dev Sql server instance remotely from my developer edition and I get the following error
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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1)
i Made sure that the following are complete
# [Link] Enable the TCP/IP protocol using the Surface Area Configuration Utility
# [Link] Make sure the TCP/IP protocol is enabled in the SQL Server Configuration Utility
# [Link] Make sure the SQL Server browser is started
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Jun 6, 2007
Hi,
We have a DB2 server which is linked to our SQL Server 2005 database. The link is through ODBC connection. Now, we are able to access some of the tables without any problems. But couple of tables are not accessible and we get following error::"
"com.ibm.db.DataException: A database manager error occurred. : [IBM][CLI Driver][DB2/NT] SQL1822N Unexpected error code "08S01" received from data source "TESTPROD". Associated text and tokens are "Communication link failure". SQLSTATE=560BD "
Any ideas on why this is happening and how to resolve this?
Thanks,
Ujjaval
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Mar 20, 2008
Hi All
how i connect sql server 2000 to Asp.Net.
Please Help me
Thanks
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Apr 25, 2007
Hi,
I am new to SQL Server. I want to connet to SQL Server database and fetch records. SQL Server will be present in some other server.
For connecting to SQL Server is it necessary to create DSN. Is it possibel to connect to SQL Server with out DSN
I want following parameters are enough for opening connetion are not:
MyConnObj.Open _
"Provider = sqloledb;" & _
"Data Source=172.16.1.60;" & _
"Initial Catalog=TESTATV;" & _
"User ID=sa;" & _
"Password=p@ssW0rd;"
As per my assumption
Data Source is your server name
Initial Catalog is your database name
please clarify me on this.
thanks
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Sep 6, 2006
hi i am using sql server 2000 i want to connect from asp.net i am confused with web.config what is this for, to connect should i edit it or simple connectivity is also posible if u know any tutorial please refer me which will guide for database connectivity faisal iqbal ch
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Jun 21, 2001
I had SQL Server working without a problem on my laptop until I changed the identification name of my laptop to make it more recognisable when I connect to a LAN. However, since I've changed my laptops name, my local SQL Server service wont run and I cant connect to my local databases. I can connect to remote SQL Servers though. If I change my laptops name back to what it was before, it still doesnt work. This has happened in the past and the only way I could solve the problem then was to uninstall SQL Server 7, remove all registry keys referring to it then reinstall it. I dont want to do all that again so....HELP!!!???! I'd really appreciate any help anyone could give me. Please email me at adrianmhills@hotmail.com
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Jul 22, 1998
Hi...
I am using MSACCESS form to connect to SQL SERVER database..Is that possible.
my tables are defined in SQL SERVER and through MS ACCESSS forms as a front End I am manipulating it...
How should I do that...Can any body help me in the same
Thanks in Advance
Rakesh
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Mar 10, 1999
To All,
I have two different servers,server1 and server2
they have the same databases(did a dump from server1 and restored on server2)
now I am using ipx/spx to connect to both the servers on the same network.
the problem is I am not able to connect to them when both are online.(using isqlw)
i have to switch one of them off to login to another,but i want both of them to be up and running at the same time
how to solve this problem?
DP
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Sep 5, 2001
Has anyone experienced timeouts connecting to SQL 2K from a client and also the server console itself. Typically this error occurs on the client: Microsoft OLE DB Provider for SQL Server error `80040e14`
OLE/DB provider returned message: Timeout expired
conn_info.asp, line 444
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Oct 21, 2005
Hello everyone,
I am experiencing problems connecting to me database from my App. I had created this database and my application that calls all the stored procedures at my old work place. I had then moved it all to my home machine. When I open my connection, I get the error saying, "SQL Server is not available or access is denied"! I have added aspnet user to the users group in the SQL Server, disabled my firewall, made sure that physically in the server view I am able to get to the tables inside of the IDE....but to no success. I have been stuck on this for over two days and need serious help from someone.
Kindly let me know of the reasons and troubleshooting methods for this problem.
Thanks in advance
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Apr 25, 2007
Hi,
I am new to SQL Server. I want to connet to SQL Server database and fetch records. SQL Server will be present in some other server.
For connecting to SQL Server is it necessary to create DSN. Is it possibel to connect to SQL Server with out DSN
I want following parameters are enough for opening connetion are not:
MyConnObj.Open _
"Provider = sqloledb;" & _
"Data Source=172.16.1.60;" & _
"Initial Catalog=TESTATV;" & _
"User ID=sa;" & _
"Password=p@ssW0rd;"
As per my assumption
Data Source is your server name
Initial Catalog is your database name
please clarify me on this.
thanks
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May 19, 2006
How do I configure the MS-SQLSERVER to accept JDBC connections andprocess the sql?I'm using SQLSERVER 2000 on Windows NT.Thanks for your help
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Feb 2, 2008
Couple of questions for the SQL Server Guru's out there.
SQLServer 2005
Web Hosting Provider
Ok I am developing a Web application in ASP.NET with AJAX, etc. etc. It will be some time before it is ready to roll out. As a mockup I created the same application in Microsoft Access and Visual Basic (VS 2008), which I can link the tables to the hosting provider on the internet. Works very well and speed is very acceptable.
My question is, is how secure is the data that is moving from the local application to SQLServer 2005 with the web hosting provider ? Is there anything that I can do to increase security ?
Thanks, any thoughts ?
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Nov 2, 2006
Hi All,
I have made a system DSN to connect to sql server, and in my asp code i got the createObjects for the connection strings.
But it keeps asking me for a data provider. What do I do?
Thx
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Jun 6, 2007
Hello all, I am hoping this is the correct place for this. I have an application that depends on an active connection to Sql Server Express 2005. I am looking for a way is any to check for the existance ofthe server I defined and wether it is online or not. I know I can just catch the error on connection but it takes a bit and I have customers trying to cancel it before it's finished because they think it's locked up. I would like a quick way to check without trying to create a connection if it's online, then if it is, proceed, if not, let the customer know. I was hoping for something like a database server ping of sorts.
Thank you,
Jim
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Oct 23, 2007
I'm setting up a simple SSRS implementation for a non-profit organization, using two servers hosted at a data center. The first server has SQL Server Standard Edition and Reporting Services installed. I've designed and deployed a number of useful reports on this server.
I was hoping to isolate this first server by installing IIS and SSRS on the second server, have users browse from the Internet to that second server (over SSL, of course), and have all reports served up from databases (and, presumably, the report server database) on the first server.
During the installation of SSRS on the second server, however, I'm being prompted to specify the service account. According to the help text:
"Reporting Services. Service accounts are used to configure a report server database connection. Choose a domain user account if you want to connect to a report server database on a remote SQL Server instance. If you are using a local report server database, you can use a domain user account or Local System to run the service."
I believe I want to configure SSRS to connect to a report server database on a remote SQL Server instance; therefore, it appears that I need to enter a domain user account. The only problem is, neither server belongs to a domain; they are members of a simple two-server workgroup.
Does SSRS, configured to connect to a report server database on a remote SQL Server instance, require a domain? Does what I'm hoping to accomplish require a domain? Creating a two-server domain seems like overkill for this implementation, doesn't it?
I appreciate any comments and suggestions. Thanks!
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Apr 29, 2008
I have an application which is under development in VS 2005 but the database is in SQL Server 2000. We are facing some strange problem with the connectivity between VS 2005 - SQL Server 2000.
I have tried all the possible ways or solutions i found when searching in google but unable to find a solution.This had become a major challenge for us now to identifiy the root cause of the problem
Error:
"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)"
Please suggest.
Thanks,
Hemant
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Apr 28, 2000
When trying to run a batch of queries (2 queries in the batch) on SQL Server 7.0 from a Windows NT client,
I am getting the following error.
--------------------------------------------------
[Microsoft][ODBC SQL Server Driver][TCP/IP
Sockets]ConnectionCheckForData
((null)()).
[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]General network
error.
See the network mannual.
Connection Broken
---------------------------------------------------
Here are the points to be noted.
1. The queries work when executed individually.
2. The client can PING the server.
3. I tired changing the default network libraries to 'Named Pipes' but this also returns
the following error
--------------------------------------------------
[Microsoft][ODBC SQL Server Driver][Named Pipes]ConnectionWrite
(GetOverLappedResult()).
[Microsoft][ODBC SQL Server Driver]Connection link failed.
Connection Broken
---------------------------------------------------
4. the ODBC driver version = 03.70.0623
Does someone have any clue to whats wrong?
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Feb 22, 2005
I've been informed that our data feed systems are going to be shut down and that our data will be residing in Teradata V2R5 databases. I was wondering if anyone knows if you can get connectivity to a Teradata server via Linked Server in the Security folder of SQL Server Enterprise Manager? If no then; Is it possible through a DTS package? Thanks for the info...
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Sep 24, 2004
Does Microsoft SQl Server has a connectivity tool over AIX?
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Nov 3, 2014
I need to connect database engine through SQL Server Authentication and want to disable connectivity through Windows Authentication. Only wanna connectivity through SQL Server, if this is possible then how to proceed further?
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Jan 15, 2008
Create a linked server to another box.
exec sp_serveroption 'RemoteServer', 'connect timeout', '1'
exec sp_serveroption 'RemoteServer', 'query timeout', '1'
Pull the network cable from the remote box.
SELECT * from RemoteServer.Database.dbo.Table1
Why does it take almost exactly 21 seconds, every time, before it fails?
How can I get it to fail immediately?
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