Can I put ALL my applications into one RAC database

Dear all,
Is it possible to share all of my workloads between a single RAC database or would it be better to run more than one RAC database on the the same cluster if they have very different characteristics (e.g. OLTP vs DSS or sensitive vs non-sensitive data). Oracle seem to imply that they have cut down their number of physical databases drastically but have they been able to do that because the workload is very homongenous, i.e all ERP stuff? Should it be possible to accommodate all workloads by having different instance parameters or does that defeat the object of being able to fail over a service from one instance to another?
Views/experiences please.

Hi, generally it is possible to put everything into one RAC database, especially if they share the same data. So you do not have to transport data from one database into the other.
Furthermore the resource allocation can perfectly be addressed with the resource manager of the database together with services. The workload has not to be homogenous.
However it might make sense to connect the DSS users to different nodes in the cluster than the OLTP users (via. services).
On the other hand there might be non technical issues which would make seperate databases more attractive. Like Patching could mean downtime of all applications. Like certifications of software, which would not allow you to upgrade your database, like ERP needs 10.2.0.2 while DSS would be better off with 11g) and so on.
There is really no right or wrong.
Still to get the most of the benefits out of a cluster the fewer databases you have.

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Problem is that I did it on seperate occasions and now I have several accounts.
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Hi. I have a similar issue to the one posted below in that I want to run a logic script for one application (call it Application A) from a DM package in a different application (Application B). This is to stop the user from having to switch between applications to run the logic.
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Emmi Kirschen wrote:
... Id like to know if there would be any downsides simply putting all of the information like: music, documents, photos, videos and downloads (not including Applications) into one unique file.
Yes.
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[svn:fx-trunk] 11575: Put default style declarations into one class per application or module.

Revision: 11575
Author:   [email protected]
Date:     2009-11-09 11:34:57 -0800 (Mon, 09 Nov 2009)
Log Message:
Put default style declarations into one class per application or module.
Generate all the default styles in one class instead of a class for each style. The name of the style class will be based on the application or module name. An application named ?\226?\128?\156foo?\226?\128?\157 will have a style class named ?\226?\128?\156_foo_Style?\226?\128?\157. The idea is to allow applications to be compiled with different themes and get their owns styles. Currently this is not possible because a global style in both themes will have the same class name, _globalStyle. Whatever class the top-level application loads the sub-applications and modules will have to use the same class because of the flash player first-class-in-wins rule. Now each application and module will have their own style class.
QE notes: None.
Doc notes: None.
Bugs: SDK-22454
Reviewer: Paul, Pete
Tests run: checkintests, all mustella tests.
Is noteworthy for integration: No.
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-22454
Modified Paths:
    flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/css/StyleDef.vm
    flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/css/StylesContainer.java
    flex/sdk/trunk/modules/compiler/src/java/flex2/tools/PreLink.java

Revision: 11575
Author:   [email protected]
Date:     2009-11-09 11:34:57 -0800 (Mon, 09 Nov 2009)
Log Message:
Put default style declarations into one class per application or module.
Generate all the default styles in one class instead of a class for each style. The name of the style class will be based on the application or module name. An application named ?\226?\128?\156foo?\226?\128?\157 will have a style class named ?\226?\128?\156_foo_Style?\226?\128?\157. The idea is to allow applications to be compiled with different themes and get their owns styles. Currently this is not possible because a global style in both themes will have the same class name, _globalStyle. Whatever class the top-level application loads the sub-applications and modules will have to use the same class because of the flash player first-class-in-wins rule. Now each application and module will have their own style class.
QE notes: None.
Doc notes: None.
Bugs: SDK-22454
Reviewer: Paul, Pete
Tests run: checkintests, all mustella tests.
Is noteworthy for integration: No.
Ticket Links:
    http://bugs.adobe.com/jira/browse/SDK-22454
Modified Paths:
    flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/css/StyleDef.vm
    flex/sdk/trunk/modules/compiler/src/java/flex2/compiler/css/StylesContainer.java
    flex/sdk/trunk/modules/compiler/src/java/flex2/tools/PreLink.java

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Delmar Ford wrote:
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Can I put ALL my applications into one RAC database

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