I discovered a few stepstones when connecting via JDBC to a locally installed SQLSever Express 2005 database. Here are my observations:
- Activate "Accepting TCP/IP" connections in the SQL Server Configuration Manager. Otherwise the SQLServer Express database won't accept any JDBC connections. This option was disabled in my configuration. Also make sure to use a static TCP/IP port, otherwise (when choosing a dynamic) the port might change on every start of the SQLServer database.
- When using Microsofts JDBC driver (not recommended) the following two steps should be considered:
- Use the latest JDBC driver provided by Microsoft. You can get it here: http://msdn2.microsoft.com/en-us/data/aa937724.aspx
- Copy the file sqljdbc_auth.dll that is packaged within the JDBC driver archive to a location that is part of you PATH variable, e.g. c:/winnt/system32.
- When using the JTDS JDBC driver simply download it from here and add it to your classpath
- Open the Microsoft SQL Server Management Studio application and create a new database user account. Be careful not to choose an existing windows account name, but to create a new SQLServer account. Otherwise you might have a chance to run into an error when trying to login via JDBC. Possible error messages and their status codes are described under http://blogs.msdn.com/sql_protocols/archive/2006/02/21/536201.aspx.
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