ClassNotFoundError is thrown by the classloader when it can not find a certain class. You will have to use the instance property either append it to the URL or place it into the Properties you supply to getConnection instead of doing it the Microsoft way. We will make the necessary changes. SQL is sent to the server each time without any preparation, literals are inserted in the SQL slower. There may be a number of reasons why this could happen:. When executing a stored procedure or any query, for that matter the response from the SQL Server is serialized in the same order it is executed in:

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This gives jTDS a 2x performance increase over the next fastest driver in some not so uncommon cases.

Check out the jTDS feature matrix for more details. In these circumstances the driver raises an exception and execution fails. For example, if you have a method that inserts a row into a table jjtds creating a PreparedStatementusing it once and then closing it, your statement will be compiled only once for each Connectionno matter how many times you call that method.

A common mistake is to append a semicolon “;” to the end of the Jds e. Why do I get a java. As the server itself does not return an SQL state code, the SQLMessage class associates native error numbers with SQL state codes actually there’s a very comprehensive map there ; SQL Server originated errors and warnings that are not found in this map are given a default code of ‘S’, respectively ”.


For the moment you can get technical support from individual developers of jTDS.

This means among other things that it cannot access platform-specific features, such as determining the currently logged user liad his credentials. I’m trying to connect to SQL Server 6.

There is a good side to this: It is possible to use mixed parameter lists to call stored procedures that do not have output parameters. For queries that return multiple results the JDBC spec requires execute to be used. Stored procedures should be invoked using the special JDBC call escape syntax.

If you need help with any other jTDS-related issue, search the Help forum loae and if you still don’t find anything, post a question. Why do I get java.

The JNetDirect license precludes publication of performance test results. The default install does not configure the SQL Browser service to start automatically so you must do it manually.

The exception is thrown because it’s better to warn the user that the output parameters are not yet set instead of leaving the impression that all is ok and cause other, harder to detect problems.

Unable to load database driver – help with datasource profile

In this case it’s the net. In case you are wondering if this is right, this is a quote from the CallableStatement API documentation: I didn’t find the answer to my problem in this FAQ. Where does one place an instance name in the connect string? In this case the driver will substitute the parameters locally and use a normal “execute procedure” SQL call; however, this mode of execution is less efficient than an RPC. The “No suitable driver” exception is thrown by the DriverManager when none of the registered Driver implementations recognizes the supplied URL.


Until telnet doesn’t connect, jTDS won’t either. If you experience this problem with versions 0. Because there is no URL when using the JtdsDataSource there are three other properties with setters and getters to take the place of those items that are part of the URL’s syntax: If you are getting this in an application, start your application with.

[SQL] Unable to load database driver – help with datasource profile – JIRA

Incorrect Behavior CallableStatement output parameter getter throws java. As a conclusion, jtes executing stored procedures that only return update counts output parameters will be available immediately, as jTDS will process and cache the whole response. This is caused by triggers; replication is also implemented through triggers, so you will encounter this issue on replicated databases too. When jTDS ,oad the 8.

If you’ll look at the query you are trying to execute, you’ll see that it probably returns an update count first, followed by a ResultSet.

Here are the results of the i-net test: