Oracle-L: Re: how to change a foreign key back to a primary key

From: Igor Neyman <ineyman_at_perceptron.com>
Date: Thu, 30 May 2002 08:05:48 -0800
Message-ID: <F001.0046FB13.20020530080548@fatcity.com>

First:

Alter table <table_name> drop constraint <primary_key_constraint_name>

then:

alter table <table_name> create constraint <PK_constraint_name> primary key (organization_id, address_id)

Igor Neyman, OCP DBA
ineyman_at_perceptron.com

Original Message ----- From: Meomeo Nguyen To: Multiple recipients of list ORACLE-L Sent: Thursday, May 30, 2002 11:23 AM Subject: Re: how to change a foreign key back to a primary key

Hi Igor,

I just wanted to set a concatenated keys for my table. By mistake, I assigned only one primary key instead of two combined together.

Here is my table structure:

organization_id (primary key)

address_id (foreign key) It should have been a primary key as well. I wanted to set this attribute as primary key. How do I do that?

address_type

Thanks for your help. I do appreciate it.

Trang

Igor Neyman <ineyman_at_perceptron.com> wrote:

Trang,

Could you be a little bit more specific about what you are trying to do?

Igor Neyman, OCP DBA
ineyman_at_perceptron.com

Original Message ----- From: Meomeo Nguyen To: Multiple recipients of list ORACLE-L Sent: Wednesday, May 29, 2002 7:05 PM Subject: how to change a foreign key back to a primary key

Hi,

I need to change a foreign key back to a primary key in a table. How do I do that. Please help.

Thanks in advance.

Trang

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Author: Igor Neyman
INET: ineyman_at_perceptron.com

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