I think you need to use the MERGE command instead of the INSERT command. 
Docs for MERGE are here:
http://www.h2database.com/html/grammar.html#merge


On Wednesday, 8 August 2012 15:13:21 UTC+2, Johannes Schneider wrote:
>
> Hi guys,
>
> I have a table with a unique index (id + time stamp). In this table I am 
> storing a lot of values I receive from another service.
> I am storing the data using a prepared statement in batches of about 400 
> entries.
>
> Unfortunately this service might provide me with duplicate data. Now I 
> just want to ignore those duplicate data (since it already exists within 
> the db).
>
>
> Of course I run into a  lot of "Unique index or primary key violation". 
> That exceptions fails my complete transaction. But I just want the two or 
> three problematic entries ignored...
> I could add each of the entries within its own transaction. But I fear the 
> performance penalty...
>
> Any ideas how that could be solved?
>
>
>
>

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