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From Rick Hillegas <rick.hille...@oracle.com>
Subject Re: new feature request of Derby
Date Thu, 01 Sep 2011 12:55:17 GMT
Hi Clark,

Derby does not have this feature. You might try putting your big tables
in a separate, on-disk Derby database and select from them using
restricted table functions. See the ForeignTableVTI attached to
https://issues.apache.org/jira/browse/DERBY-4962

Hope this helps,
-Rick

On 9/1/11 5:33 AM, 鲍少明 wrote:
> I mean if one table holds a lot of data, then it cannot be all in memory.
> the latest version of hsql of its memory mode allows only keep like 8M
> data in memory but others
> be kept in disk. This feature looks very useful.
>
> 2011/9/1 鲍少明 <iokerica@gmail.com <mailto:iokerica@gmail.com>>
>
>     Hi Guys,
>     Is there any feature in Derby in its memory mode like Cache table
>     in hsql?
>     I find this feature very important to us , especially there is
>     some table which holds a lot of table,
>     not suitable to be a pure memory table. But I want to still keep
>     the other tables in memory mode.
>     Is that possible?
>     Thanks,
>     Clark
>
>


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