Re: Graphical Oracle administration
Date: Thu, 22 May 2008 12:01:14 -0700
> I've searched the internet and as far as I can understand in SQL
> Server 2005 and Oracle we have:
> An instance (server) can have many databases.
No. No. No.
> A database can have many schemas, schema simply being a grouping for
> objects in a database: there can be two tables named "Product" one in
> the schema Sales and the other in the schema Manufacture
> (Sales.Product and Manufacture.Product)
> Hence a fully qualified object name is server.database.schema.object.
> Am I right?
No. No. and NO!
In Oracle a database is a set of physical files. Just a set of files.
In Oracle an instance is processes and memory structures.
A database has users.
Users have objects.
We interchangeably refer to users with objects as schemas. Users own objects.
You can not apply your Ingres -> Informix -> Sybase -> SQL Server understanding of databases to Oracle. Oracle was not spawned at UC Berkeley like the others.
-- Daniel A. Morgan Oracle Ace Director & Instructor University of Washington damorgan_at_x.washington.edu (replace x with u to respond) Puget Sound Oracle Users Group www.psoug.orgReceived on Thu May 22 2008 - 14:01:14 CDT