Also, depending on your requirements (which I don't fully understand)
another approach may involve using views:
The CUSTOMERS view could point to either CUSTOMERS_A, CUSTOMERS_B or even
the merge of both tables (select * from customers_a union all select * from
customers_b) if required. Of course you may introduce primary and foreign
key problems, but like I said - I don't fully understand your requirement
so I'm just throwing ideas up in the air.
Regards,
Mark.
"Arup Nanda"
<[EMAIL PROTECTED] To: Multiple recipients of list
ORACLE-L <[EMAIL PROTECTED]>
om> cc:
Sent by: Subject: Re: Transparent database
objects after merging
[EMAIL PROTECTED]
.com
16/07/2003 13:59
Please respond to
ORACLE-L
You can drop or rename CUSTOMERS to, say, CUSTOMERS_A, and then create
synonym CUSTOMERS pointing to CUSTOMERS_B. Or rename CUSTOMERS_B to
CUSTOMERS.
HTH.
Arup Nanda
----- Original Message -----
From: [EMAIL PROTECTED]
To: Multiple recipients of list ORACLE-L
Sent: Tuesday, July 15, 2003 11:29 PM
Subject: Transparent database objects after merging
Hello Gurus,
I'm working merging 2 databases which have sane structure of
database objects into one database. However, after merging, the business
policies and regulations force us to have 2 set of database objects; for
example :
Database A has CUSTOMERS table.
Database B has CUSTOMERS table.
After merging database A will have CUSTOMERS and CUSTOMERS_B (data from
database B). I just wonder that is there any way that we don't need to
change our script in forms and reports to point into a new table name but
still can access to the data in the new table ( CUSTOMERS_B) not
CUSTOMERS.
Thank you for any comment and suggestion.
Ukrit K,
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