[erlang-questions] exporting database from mnesia to other database

Sean Hinde <>
Fri Dec 8 13:15:47 CET 2006


Hi,

I think the answer is that there is no pre-built solution for this  
problem. You will have to write some code yourself after reading the  
manuals

Sean

On 8 Dec 2006, at 10:15, Siddharth Pareek wrote:

> Hi,
>      I request you to please let me know the soltuion for below  
> mentioned
> problem. I am still unable to come to any soltuion till date. I  
> want to take
> the back up of the mnesia database on other databse like the  
> Orcale..either
> using Jinterface . Is it possible if any.
>
> Thanks and Regards,
> Siddharth Pareek
> ----- Original Message -----
> From: "Taavi Talvik" <>
> To: "Siddharth Pareek" <>
> Sent: Wednesday, December 06, 2006 6:34 PM
> Subject: Re: [erlang-questions] exporting database from mnesia to  
> other
> database
>
>
>>> Hello Sir,
>>>              thank you for this little bit of suggestion..since this
>>> function is for educational purpose only..Could you provide me some
>>> other way sir , since i will be needing this back up on a real time
>>> project.
>>>     looking forward towards your reply in this regard soon.
>>
>> mnesia:dump_to_textfile() - can be used for exporting data.
>>
>> For backup there ore other mechanism which take account concurrency,
>> atomicity etc.
>> Probably "education purposes" is meant in this context.
>>
>> Look at:
>> backup(Opaque [, BackupMod]) -> ok | {error,Reason}
>>
>> Activates a new checkpoint covering all Mnesia tables, including the
>> schema, with maximum degree of redundancy and performs a backup using
>> backup_checkpoint/2/3. The default value of the backup callback  
>> module
>> BackupMod is obtained by mnesia:system_info(backup_module).
>>
>> backup_checkpoint(Name, Opaque [, BackupMod]) -> ok | {error,Reason}
>>
>> The tables are backed up to external media using the backup module
>> BackupMod. Tables with the local contents property is being backed  
>> up  as
>> they exist on the current node. BackupMod is the default backup   
>> callback
>> module obtained by mnesia:system_info(backup_module). See the  User's
>> Guide about the exact callback interface (the mnesia_backup   
>> behavior).
>>
>> http://www.erlang.org/doc/doc-5.5.2/lib/mnesia-4.3.3/doc/html/
>> Mnesia_chap7.html#6.9
>>
>> best regards,
>> taavi
>>
>
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