From: | Angelo Neuschitzer <an(at)jenomics(dot)net> |
---|---|
To: | Oliver Jowett <oliver(at)opencloud(dot)com> |
Cc: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | Re: Strange behavoir of batches |
Date: | 2005-09-13 07:07:56 |
Message-ID: | 43267ACC.1020307@jenomics.net |
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Thread: | |
Lists: | pgsql-bugs pgsql-jdbc |
Yes, I know, I found the problem for me already.
If one does call addBatch() every time it works fine.
But thats not the point.
If I don't do it (there should be 1 line missing each block) but fiddle
around with the second block
{ // original
insert 82 rows (in table B)
2 (in table C)
9 (in table D)
{
{ // changed
2 (in table C)
9 (in table D)
82 (in table B)
{
it works well...
Also It should not matter at all what is in tables B,C and D if I enter
a reference from A to E... but it seems that it does.
If got some minutes free I'll go and get the old code again to reproduce
some things and write a report.
Zo Phar
Angelo Neuschitzer
Oliver Jowett wrote:
>Angelo Neuschitzer wrote:
>
>
>
>>>PreparedStatemet pStmt = con.prepareStatement("INSERT INTO table_a
>>>VALUES (...)");
>>>for(0 to 93)
>>>{
>>> [fill values into pStmt]
>>> if(not last row)
>>> {
>>> pStmt.addBatch();
>>> }
>>>}
>>>pStmt.executeBatch();
>>>pStmt.clearBatch();
>>>
>>>
>
>AFAIK, this "not last row" logic seems wrong. Calling executeBatch()
>only executes those queries that have been added to the batch via
>addBatch(), so the loop will lose the last INSERT.
>
>-O
>
>
>
>
--
Angelo Neuschitzer
Development
Java. Mit Sicherheit.
Jenomics GmbH, Thalkirchnerstraße 55, 80337 München, Deutschland
www.jenomics.de an(at)jenomics(dot)de
Tel: +49 (0) 89 767 59 003; Fax: +49 (0) 89 767 59 005
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