于 2012年05月17日 04:46, Andy Seaborne 写道:
> On 16/05/12 15:43, 王瑞期 wrote:
>>
>> When use Jena to create TDB dataset in Linux ,the TDB data can be used
>> in Windows,too.But if I create one in Windows and then copy to Linux ,
>>
>> there is no result when excute sparql query.The Java code are the
>> same,and I test this problem in three computers,one of them is my PC
>> (I have installed Win 7 and Ubuntu in my computer),all of them can not
>> excute any result.
>>
>> I mean,the TDB created in Windows can excute sparql query and return
>> resultset,but not in Linux with the same Java code.And the TDB created
>> in Linux,it is OK to use it in Windows.
>> As my partner also get this problem,I mean ,he also created TDB in his
>> PC ,and then copy from Win 7 to Linux.So,I am sure not the problem cause
>> by the copy process
>> Has any one get this problem?
>>
>>
> This is something I've done before - and between 32 and 64 bit java's
>
> Can you move a database within the same machine, windows->windows?
>
> Which version of TDB?
>
> What is the query and what does "no results" mean - zero rows, or rows
> in the results with no elements? The latte is a sign of failing to shut
> the database down before copying. You can't copy a database when the
> JVM that created or opened it is still running.
>
> Andy
Thank you ,the problem is solved when I copy the dataase after the TDB
dataset closed.
