JDBC Batch creation problem

Hi Experts...
I have a requirement of updating a table which has about 5 million rows. So for that purpose i want to create batch statements in java and update as a bulk operation.

Right now I have 100 batches and it works fine.But when i increase the number of batches over hundred i get an exception as : com.sybase.jdbc2.jdbc.SybBatchUpdateException: JZ0BE: BatchUpdateException: Error occurred while executing batch statement: Message empty.

How can i have more batch statements in my CallableStatement object.
Please help...
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Tomas Helgi JohannssonDatabase Administrator / Software EngineerCommented:

The number of batches you need to use depends on the number of rows in each batch
and total number of rows that you are adding/updating to the table.
So having 100 batches does not tell me how many rows are in each batch but the error "Message empty"
tells me that you are adding a empty batch most likely due to EOF in the total number of rows.

Adding more batches is only necessary if
                [number of rows in a batch] * [number of batches] < [total number of rows to be added/updated]

         Tomas Helgi
gaugetaAuthor Commented:
@Tomas Helgi:Thanks for the reply.
Here i am adding 100 rows to a batch statement and then executing the batch containing worth 100rows of data and I'm clearing the batch for accomodating the next hundred and so on.
I meant i could only fit 100 rows in the batch statement before execution not 100 batches.
Sorry for the confusion caused.
Please help...
Tomas Helgi JohannssonDatabase Administrator / Software EngineerCommented:

Hmmm, increase your batch size parameter in the Sybase database as it is default 100. :)
See here for more detail

    Tomas Helgi
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gaugetaAuthor Commented:
@TomasHelgi:Thanks for the reply.
I took a look at the document.But the procedure to increase the same is not present anywhere.
Please help....
Tomas Helgi JohannssonDatabase Administrator / Software EngineerCommented:

If you look at the left side of the first link I provided then there is a link
"Setting configuration Parameters" and little lower is the "Using sp_configure" link

which tells you how you sett/reset these parameters. :)

      Tomas Helgi

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Joe WoodhousePrincipal ConsultantCommented:
If you mean the sp_configure parameter "i/o batch size", that has nothing to do with this issue. I/O batch size controls how ASE manages it's interface to the I/O system and under no circumstances affects how ASE processes result sets. As a strictly internal server-side setting it's rather unlikely to be relevant to JDBC processing.

That error message is from JDBC, it isn't a Sybase ASE error. Something is wrong in the middle layer - this isn't a database issue.
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