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Re: An object-oriented network DBMS from relational DBMS point of view

From: Dmitry Shuklin <shuklin_at_bk.ru>
Date: 12 Mar 2007 10:56:43 -0700
Message-ID: <1173722203.067988.41650@n33g2000cwc.googlegroups.com>


Hello,

On 10 mar, 12:11, "Dmitry A. Kazakov" <mail..._at_dmitry-kazakov.de> wrote:
> Forget first about tables. Tables are just unordered sets of rows. You can
> have different sorts of collections. Unordered set is just one case of.

Yes, tables is just a collections. In network OODB table is just a node. This node has many attributes. Two of them - collections of rows and collections of columns. So table can be row of by self. And columns can be rows in some table.

Let take table "Tables" as example.

Table has an attribute Name = "Tables" and it has a column "Name". It contains self as a row. And field Name of this row in table "Tables" = "Tables".

Let take table "Attributes" for example. Table "Attributes" contains rows=attributes descriptors. This table contained by table "Tables" as another row. And column Name in "Tables" table for attributes-row = "Attributes". Also One of them - descriptor of attribute "Name" - row attribute-name descripts all names. So it descripts own attribute name = "Name". Also instance of this row is contained in column collection of table "Tables" and table "Attributes", also it contains in rows collection in table "Attributes".

WBR, Dmitry Received on Mon Mar 12 2007 - 12:56:43 CDT

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