Re: Database question ?

mAsterdam <mAsterdam_at_vrijdag.org> 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.

Sincerely,

Gene Wircheno

Computerese Irregular Verb Conjugation:

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     You have biases.
     He/She has prejudices.