JTDS MYSQL DRIVER

If you need help with any other jTDS-related issue, search the Help forum first and if you still don’t find anything, post a question. Scenario i , while it does work, is not necessarily a good solution because it requires a lot of locking and waiting on the same network connection plus last but not least a lot of caching. So for procedures returning ResultSet s you will have to loop, consuming all results before reading the output parameters i. Memory usage keeps increasing when using generated PreparedStatements. Memory Usage Memory usage keeps increasing when using generated PreparedStatements. You are very probably using TDS 4. 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.

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Now I want to connect both databases simultaneously in a single program. What do i have to do to connect to Netcool Omnibus or any derived Product. 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.

In these circumstances the driver raises an exception and execution fails. These jtdss just snippets. Can jTDS be used in a multi threaded application?

As a conclusion the only safe multithreading scenarios are these: Have you got any figures to prove that?

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JDBC Driver Libraries for different types of database in Java

Sign up or log in Sign up using Google. When jTDS sends the 8. The “No suitable driver” exception is thrown by the DriverManager when none of the registered Driver implementations recognizes the supplied URL. Actually we do have benchmark results from two different benchmarks, both developed ntds large commercial SQL Server JDBC driver vendors to demonstrate the performance of their own drivers.

Jtda even better, a benchmark I can run myself? I didn’t find the answer to my problem in this FAQ. Why do I still need to provide a username and password? Although queries returning multiple results are not very common, it is the reason why this behavior is customizable from the URL.

JTDS Driver

Memory usage keeps increasing when using generated PreparedStatements. I tried mysql program without Class.

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What should I do? I’m trying to connect to SQL Server 6.

So, for maximum compatibility, it is recommended that you use execute anytime you run queries returning more than one result even if the particular driver you are using allows you to do otherwise. Web Design Anca Sinpalean. I am able to connect both databases separately i. Although this means that a “good” driver could “fix” this behavior, fixing it would imply caching the whole server response, equaling a huge performance drop.

We will make the necessary changes. Sign up mtsql Email and Password. When calling a stored procedure that has output parameters, the driver has to call the procedure using a remote procedure call RPC.

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Batch processing using executeBatch hangs or is unreliable on Sybase. CallableStatement output parameter getter throws java. I will try and get back to you.

Why do column names more than 30 characters long, get chopped off at 30 characters? Features such as generated keys retrieval, named stored procedure parameters, and save points are also implemented.

JDBC Driver Libraries for different types of database in Java

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.

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. The root cause is that triggers also return update counts and jTDS can’t make the difference between these update counts and the “real” one neither could any other SQL Server client. If that’s the case, replace jtds.