Other I didn’t find the answer to my problem in this FAQ. The default install does not configure the SQL Browser service to start automatically so you must do it manually. 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: However, you can run any of the benchmarks yourself, the effort is minimal. You are very probably using TDS 4. The name of the jTDS jar file may be jtds The exception you are getting is usually caused by a timeout.
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In this case it’s the net.
[SQL] Unable to load database driver – help with datasource profile – JIRA
There is a good side to this: As a conclusion the only safe multithreading scenarios are these: The only major features missing from jTDS are connection pooling and row sets; the reason for leaving these out is that there are free implementations available, probably much better than anything we could come up with.
As a general principle we try and keep synchronization to a minimum both for performance and deadlock reasons. 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: 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.
For queries that return multiple results the JDBC spec requires execute to be used. This gives jTDS a 2x performance increase over the next fastest driver in some not so uncommon cases. I’m trying to connect to SQL Server 6. Driver” or you mistyped the URL e.
Normally, with a JDBC driver, PreparedStatement s are precompiled on creation, which gives increased performance if they are used a sufficient number of times. The JNetDirect license precludes publication of performance test results.
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. Web Design Anca Sinpalean. This means among other things that it jtrs access platform-specific features, such as determining the currently logged user and his credentials. As a conclusion, when executing stored procedures that laod return update counts output parameters will be available immediately, as jTDS will process and cache the whole response.
When executing large batches on Sybase the client application may hang or the response time may vary considerably.
Unable to load database driver – help with datasource profile
The client may be suspended if the system log fills so check that the log space is sufficient for the batch you are ooad to load. The “No suitable driver” exception is thrown by the DriverManager when none of the registered Driver implementations recognizes the supplied URL.
SQL is sent to the server each time without any preparation, literals are inserted in the SQL slower. The number of statements that are kept open simultaneously lkad be controlled with the maxStatements parameter; see the jTDS URL format for more information.
The solution is to set the “TDS” property to “4. 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. Here looad the results of the i-net test: In both cases if you call Statement.
The exception you are getting is usually caused by a timeout. When jTDS sends the 8.
jTDS JDBC Driver
Features such as generated keys retrieval, named stored procedure parameters, and save points are also implemented. Batch processing using executeBatch htds or is unreliable on Sybase.
Scenario iwhile 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.
There are three possible causes to this if we exclude not creating the ResultSet with the appropriate type and concurrency in the first jts.
So for procedures returning ResultSet s you will have to loop, consuming all results before reading the output parameters i. This is jyds if say you are querying a stored procedure that creates a temp table, runs updates against it and then returns the table as a result set.
Or even better, a benchmark I can run myself?