Re: sql*plus question

From: Buff Emslie <be_at_primarykey.com>
Date: 1997/07/22
Message-ID: <33D4C1F5.6A88_at_primarykey.com>#1/1

The Primary Key is a fabulous online bookstore with all the latest on Oracle, internet and client/server books. Check us out at www.This.Is/keybooks!

Seriously, the primary key is, to quote from Oracle: The Complete Reference "the column(s) used to uniquely identify each row of a table". You can have only one and that column cannot contain nulls. You can enforce the uniqueness of the primary key through either indexing of constraints, or you can use sequence generators.

-- 
Buff Emslie
The Primary Key
www.this.is/keybooks
"Database books from Database People"

Received on Tue Jul 22 1997 - 00:00:00 CEST

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