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Replication [message #359088]

Thu, 13 November 2008 12:54

smunir362
Messages: 310
Registered: September 2007

Senior Member

AOA
I have created three materalized view (MV1 MV2 MV3) from different databases into a single database.
Now my requirement is I want a table which include some fields from all my materialized views but insertable.

Pls help me or if you have any other point tell me.

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Re: Replication [message #359108 is a reply to message #359088]

Thu, 13 November 2008 14:20

babuknb
Messages: 1736
Registered: December 2005
Location: NJ

Senior Member

>>Now my requirement is I want a table which include some fields from all my materialized views but insertable

I am not able to understand your requirement.

Babu

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Re: Replication [message #359119 is a reply to message #359088]

Thu, 13 November 2008 15:30

Littlefoot
Messages: 21826
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

Would CTAS do the job? You know,

CREATE TABLE your_new_table
AS
SELECT mv1.col1, mv2.col4, mv3.col2
FROM mv1, mv2, mv3
WHERE mv1.id = mv2.id
  AND ...

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Re: Replication [message #359120 is a reply to message #359119]

Thu, 13 November 2008 15:33

babuknb
Messages: 1736
Registered: December 2005
Location: NJ

Senior Member

>>CTAS do the job

CTAS Mean???

Babu

[Updated on: Thu, 13 November 2008 15:34]

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Re: Replication [message #359122 is a reply to message #359120]

Thu, 13 November 2008 15:55

Littlefoot
Messages: 21826
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

CREATE TABLE AS SELECT ...

Also see CTAS

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Re: Replication [message #359123 is a reply to message #359122]

Thu, 13 November 2008 16:01

babuknb
Messages: 1736
Registered: December 2005
Location: NJ

Senior Member

Thanks Littlefoot

Babu

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Re: Replication [message #359278 is a reply to message #359123]

Fri, 14 November 2008 08:59

smunir362
Messages: 310
Registered: September 2007

Senior Member

Sorry for uncomplete requirements.
Actual requirements are as follows.

Materialized Views (MV1, MV2, MV3) these are on commit refresh.
Now I want a single materliazed view (some column from MV1, some from MV2 and some from MV3). But this materliazed view whould be insertable.

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Re: Replication [message #359314 is a reply to message #359278]

Fri, 14 November 2008 12:48

babuknb
Messages: 1736
Registered: December 2005
Location: NJ

Senior Member

I think your going to create materialized view contain more then one materialized view.

It's should be read only not updatable.

Babu

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Re: Replication [message #359416 is a reply to message #359278]

Sat, 15 November 2008 13:59

Littlefoot
Messages: 21826
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

So, you'd like to insert into a materialized view based on three materialized views which are based on certain tables (probably)?

Check what Materialized View Concepts and Architecture document says about read-only/updatable/writeable materialized views.

Just wondering: if there were NOT NULL table columns which are NOT part of the three materialized views, how do you plan to avoid the "can not insert null into ..." error?

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