Re: Database question ?

From: mAsterdam <mAsterdam_at_vrijdag.org>
Date: Fri, 13 Aug 2004 23:42:36 +0200
Message-ID: <411d35d0$0$42417$e4fe514c@news.xs4all.nl>

Gene Wirchenko wrote:

> mAsterdam wrote:

>>Gene Wirchenko wrote:
>>>Alan wrote:
>>>>m sergei wrote:
>>>>
>>>>>I have a question about how is Database software constructed ?
>>>>>
>>>>>Say Oracle/Sybase etc database software, how are they programmed ? ie
>>>>>how is data actually stored in tables, or actually in files ?
>>>>
>>>>Here is a very simple explanation:
>>>>
>>>>Data is stored in logical structures called tables. These logical structures
>>>>are implemented physically in files.
>>>
>>> They might be, but it need not be that way.
>>
>>Are you thinking in memory databases and raw devices or did you have
>>something else in mind? I think the 'file' concept somehow comes in
>>somehow everywhere albeit sometimes posing as 'container'.

> 
>      Those are possibilites.  The point is that the relational model
> does not specify the storage method.  It could be laser pulses bounced
> off the moon.

Summary of this discussion:

Q: How is data actually stored?
A: The relational model model does not say.

Am I missing something? Received on Fri Aug 13 2004 - 16:42:36 CDT