Microsoft sql server error codes

If you raise an error that has a severity level of 10 or less, which is a warning, no exception is raised. This warning is not populated into the SqlErrorCollection. Instead you must hook into the InfoMessage event of the Connection object and handle the message there. Also note that some errors that have a severity level of 11 or greater abort the whole stored procedure. The following list outlines the recommended hardware, software, network infrastructure, and service packs that are required:.

The following sample uses a combination of Sev 10 and Sev 11 errors to demonstrate how you can use ADO. NET to display error messages with different severity levels. This sample also demonstrates how you can use IF Note that you must add a handler to hook into the InfoMessage event of the Connection object to display errors that have a severity level of 10 or less. Expand the Northwind database node, right-click stored procedures, and then click the new stored procedure.

In the code window of Form1, or your Visual Basic. NET project, add a reference to System. SQLClient by adding the following line to the top of your Form1.

Make sure that User ID has the appropriate permissions to perform this operation on the database. To display errors that have a severity level of 10 or less, add the following sub to handle the InfoMessage event:. The custom error code in the stored procedure traps this scenario and raises a SEV 10 exception.

Error messages that have a severity level of 10 or less are treated as informational messages, and are not returned as errors or in query results. This does not find both values in the Customers database, and the stored procedure raises a SEV 11 exception. Sometimes, it makes the database inaccessible for the user.

But this can be solved easily. There may be several different reasons due to which this SQL error code appears. For more details of these methods you continue reading and get the complete details:. The manual method that we have discussed above, involves a lot of effort and is a cumbersome and tedious task.

Sometimes a user will do mistakes during the manual command execution. Hence the process is too lengthy and time-consuming. Moreover, the manual procedure is quiet difficult for non-technical users. If the domain name is not specified, then it is a failing SQL login.

If it is specified, then it is a failing Windows-Integrated login. Review the following table for causes and potential resolutions. For additional tips, review Troubleshooting: Login Failed for User 'x'. You can also see this with IIS applications that use Anonymous login or Form's login where the user account is not impersonated.

This error typically happens if the user is logged in with a local account rather than a domain account. If connecting to services off-box, then the machine credentials may be passed.

In some cases, you can add this account as a login on the back-end server. In other cases, you may want to login with a domain account and provision appropriate permissions to that account to access the remote service. Timeout expired. The timeout period elapsed prior to completion of the operation or the server is not responding. SqlException 0x : Connection Timeout Expired. The timeout period elapsed while attempting to consume the pre-login handshake acknowledgment.

This could be because the pre-login handshake failed or the server was unable to respond back in time. Win32Exception 0x : The wait operation timed out. SqlException 0x : Timeout expired. Connection Timeout Expired. You can start troubleshooting from the following section: Troubleshooting Timeout expired messages. A timeout is when something takes longer than it is allowed. We are basically aborting what we were trying to do as to not wait indefinitely and possibly block other things and hang an application.

From a connectivity perspective, at its basic form, we can see this in two ways. One is a connectivity timeout, the other is a query timeout. So, you should first review the complete call stack of the error message to determine if it is a connection timeout or command timeout. The default values for these parameters which can be set through code, connection string and other methods is as follows:.

For example, it could be that you have a slow network or there is query performance issue. There are no hard and fast rules as what could be done here and more investigations may be necessary as to be what could be causing the issue. Increasing the Query Timeout is much more common than increasing the Connection Timeout. This is because when trying to connect to a data source, the connection typically happens quickly usually within a span of few milliseconds.

For more tips and suggestions check: Troubleshooting: Timeout Expired. It is typically caused if connections are not being closed properly and the complete error may look as follows:. InvalidOperationException: Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool.

This may have occurred because all pooled connections were in use and max pool size was reached. This can typically be avoided by Timeout expired. UDL files provide an easy and effective way to test connections to your SQL server from your clients or other systems.

Navigate to the folder where you want to create the Universal Data Link. Create a new text file sqlconn. We are sorry that this guide didn't solve your problem. Here are some additional resources that you may find useful:. Steps to troubleshoot SQL connectivity issues. Troubleshooting Server and Database Connection Problems.

Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No. Any additional feedback? Note You can search for "Server name is" string to get this info in the errorlog.

Note To programmatically obtain the connection strings from your application, refer to the sample at How to: Read Connection Strings from the Web. Note The tool only provides Fix and Generate options for default instances and named instances with static ports. Note The second and third error messages occurs when. Net Framework 4. Note The default values for these parameters which can be set through code, connection string and other methods is as follows: Connection Timeout - 15 seconds Query or Command Timeout - 30 seconds.

In this article. Indicates one of the following: SQL is not started. SQL is listening on a non-default port. Ensure SQL is started. Note If you would like to resolve firewall issue, move to Configuring firewalls section. Client library is able to connect fine to the SQL server machine but something else in the application layer could be causing the problem.