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Reports source from more than one database [message #229785]

Tue, 10 April 2007 01:16

SpeakurMind
Messages: 14
Registered: June 2006

Junior Member

Hi,

I'm using reports 10g.There is a requirement wherein my source of the report ( tables/views) maybe pointing to more than one database i.e. table A maybe present in database DB1 and table B in DB2. Since the table B is very huge, it is present in a seperate databse DB2.

I need to link both these tables in my report.Is it possible to design a report wherein the tables/views?

I've developed reports wherein the tables are from a single database and not sure if the possibility of referencing tables from more than one database exists in 10G.

Please help.

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Re: Reports source from more than one database [message #229790 is a reply to message #229785]

Tue, 10 April 2007 01:24

ab_trivedi
Messages: 460
Registered: August 2006
Location: Pune, India

Senior Member

hi,
I will try and once done I will let you know.
Ashu

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Re: Reports source from more than one database [message #229798 is a reply to message #229785]

Tue, 10 April 2007 01:40

Littlefoot
Messages: 21813
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

In a schema located in any of those databases create a database link to another database and a view as

CREATE VIEW tables_united AS
SELECT * FROM table_in_this_schema
UNION ALL
SELECT * FROM table_in_another_database@database_link;

Base your report on a view instead of a table.

Also, you might consider using a materialized view instead of an ordinary view which will might make report run much faster than the one over a database link.

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Re: Reports source from more than one database [message #229813 is a reply to message #229798]

Tue, 10 April 2007 01:56

SpeakurMind
Messages: 14
Registered: June 2006

Junior Member

Thanks all..I shall try with the materialized view and shall let u know in case of any issues Littlefoot.Thanks for the speedy reply.

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