Model Physical Implementation ?

Hi ,
I am using SQL DM 3.0.0.665. I need your thoughs on following.
We have a logical model and physical model on SQL Developer.
We need to push the same physical model into multiple schemas/instances.
What is the best way to do that?
Any idea?
Thanks in helping us out.

Hi,
the easiest way is to use name substitution functionality in DDL generation:
1) "apply name substitution" check box - select it
2) 'object types" on "Name substitution" tab - select "user'
3) define substitution -n example :
old: DEV
new: PROD
select definitions you want to use in current DDL generation session
Philip

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Physical/Logical model that implement oracle database

Dear Forum's member,
I need documentation where I can see a grafical or a figure of the Physical/Logical relationship model that implement the Oracle object internally. It's not an specific example. It's about how oracle store the objects that it manage and are they related to the others.
Best regards,
José Guillén

I once used Erwin Design tool which can help in your task. I do not know if this is still around, since I used it in 2005.

Event SAVE_REQUESTED is only modeled, not implemented

Hi,
I tried to create a Workflow which uses a ABAP OO Class.
The Workflow is created by an event and cancelled by another event.
In a task after the cancel event a method of the class should be excecutet. The method should set a value.
It seems, that the method was called but the value was not set.
If I have a look at the workflow log and click on
WiObject_ID WiObject_ID YCL_BP_LIMITANTRAG:48FEC3F995E859D9E1000000C0A83B4F
I got the Message:
Event SAVE_REQUESTED is only modeled, not implemented.
What's my mistake?
Best regards Marcus

Hi Sudhir,
the class and the method is active and also the method is working fine.
If I have a look on the workflow log (View with technical details) and I click in Tab "Container" on the class I got the message every time.
I also tried this with CL_SWF_FORMABSENC and I don't get the event, so it seems, that it belong to the persistent class.
Kind regards Marcus

Data modeler, physical model related view

Hi community,
is there a way to create a physical model related view in the data modeler or a better idea?
The reason is simple, let me say, I have a view with string concatenation and want use this view in oracle and sql server, the syntax is different.
In Oracle it is " column1 || ' ' || column2". The same thing in sql is "column1 + ' ' + column2"
Regards, Henrik

Hi Kent,
thank you for the answer, but it is not really a solution for me to copy the complete relational model to a second one! It is unfavorable for later changes on the model. You must do them all changes on both models.
Currently I have one relational model together with four physical models, Oracle 10, Oracle 11, Oracle 12 and MS Sql. If I work with stored functions, procedures, packages, triggers and so one, it is possible to change the content of these objects in the physical model, depending of the sql language and the database version features.
Only tables and views are not changeable and I’m not able to add a table or view to the physical model.
Other suggestions?
Regards, Henrik

Table Model Internal Implementation

Developers,
As written in the API when constructing a Table you can set CONSTANTS which determine when the Table is resized what behaviour will apply. - eg AUTO_RESIZE_COLUMN.
Can anybody tell me, in view of there being 5 different options, how this is most likely implemented internally. I dont believe there are subclasses which handle drawing based on this constant. I also dont believe that there is a big if - else block.
The reason i want to know this is i have to do something similar and i want to borrow the design ideas used in Table. Obviously i have researched using Tables but i want to know how layout gets done internally.
Thanks.

i doubt very much they would let you see the source.Why would I suggest this if I wasn't able to look at the source code?
I using Apple Mac OS X The JDK source belongs to Sun, not Apple. I have the complete source for the Windows JDK, so I don't see any reason why you don't have it with the Apple JDK.
The code is not located in a single place or method in the JTable class. The code uses a combination of if/else and switch statements.

Physical implementation.

Hi friends,
I have Oracle 7.3 and 9i databases on HP UX 11.now I want to deploy 9iAS J2EE and web Cache on same server from remote location connected with T1, which can talk to both of this databases.Should i need specefic user,with specific privs other then dba.i need seperate Oracle_home, Displey, TMP, TNS_Admin and set up of HTTP and J2EE, I do want to install and integrate struts. I will appriciate anyone's comments on this subject.
Regards

Hi,
the easiest way is to use name substitution functionality in DDL generation:
1) "apply name substitution" check box - select it
2) 'object types" on "Name substitution" tab - select "user'
3) define substitution -n example :
old: DEV
new: PROD
select definitions you want to use in current DDL generation session
Philip

Logical Database design and physical database implementation

Hi
I am an ORACLE DBA basically and we started a proactive server dashboard portal ,which basically reports all aspects of our infrastructure (Dev,QA and Prod,performance,capacity,number of servers,No of CPU,decomissioned date,OS level,Database patch level) etc..
This has to be done entirely by our DBA team as this is not externally funded project.Now i was asked to do " Logical Database design and physical Database
implementation"
Even though i know roughly what's that mean(like designing whole set of tables in star schema format) ,i have never done this before.
In my mind i have a rough set of tables that can be used but again i think there is lot of engineering involved in this area to make sure that we do it properly.
I am wondering you guys might be having some recommendations for me in the sense where to start?are there any documents online , are there any book on this topic?Are there any documents which explain this phenomena with examples ?
Also exactly what is the difference between logical database design vs physical database implementation
Thanks and Regards

Logical database design is the process of taking a business or conceptual data model (often described in the form of an Entity-Relationship Diagram) and transforming that into a logical representation of that model using the specific semantics of the database management system. In the case of an RDBMS such as Oracle, this representation would be in the form of definitions of relational tables, primary, unique and foreign key constraints and the appropriate column data types supported by the RDBMS.
Physical database implementation is the process of taking the logical database design and translating that into the actual DDL statements supported by the target RDBMS that will create the database objects in a target RDBMS database. This will generally include specific physical implementation details such as the specification of tablespaces, use of specialised indexing (bitmap, clustered etc), partitioning, compression and anything else that relates to how data will actually be physically stored inside the database.
It sounds like you already have a physical implementation? If so, you can reverse engineer this implementation into a design tool such as SQL Developer Data Modeller. This will create a logical design by examining the contents of the Oracle data dictionary. Even if you don't have an existing database, Data Modeller is a good tool to use as a starting point for logical and even conceptual/business models.
If you want to read anything about logical design, "An Introduction to Database Systems" by Date is always a good starting point. "Database Systems - A Practical Approach to Design, Implementation and Management" by Connolly & Begg is also an excellent reference.

Compare physical db with CASE model

I'm using Designer Release 6.0 for PC. I'd like to compare (diff) my Designer db server model with my physical implementation
residing on our server. We sometimes have developers change the physical db without changing the CASE tool (ERD, tables, etc.). I
remember an old version of the CASE tool that had a report available that performed this compare. You run the report, login to your
physical db, then it would compare the CASE model with the physical model and give you an output of the differences. It would report
any column size/type changes, constraint changes, index changes - everything. I don't remember the name of the report but
I can't find a report title in this CASE version that sounds like this. Anyone know of such a report?
Thanks for any help,
Kevin Sharpe

Hi,
You can run the Reconcile Report when you run the Server model generator. In the Design editor select the Relational Table Definition node and open the Server Model Generator. You must choose to generate to the livedatabase rather than generate the DDL files.
The generator does not automatically execute the DDL it creates. Once the generator has created the DDL it also creates the Reconcile Report and brings up a dialog allowing you to view the DDL, execute the DDL, examine the report or cancel. The report comapres the physical database and the table definitions.
If you examine the DDL you'll see that the generator creates ALTER statements for any tables it finds in the database.
Hope this helps
Rgds
Susan
Oracle Designer Product Management

Attributes For SQL Server Physical Models Aren't Saved

In version 3.0.0.665, a physical implementation implementation of data model was persisted to SQL Server 2005. The physical implementation required the use of IDENTITIES; the equivalence to an Oracle sequence.
The functionality works fine because the DDL generated correctly and the script was persisted to the target database without incidence. Both the physical model and DMD were saved. After deployment, the client required the addition of several attributes into the model. Since the model hadn't populated yet, the desired approach involved dropping the SQL SERVER database (Oracle Schema), applying the changes to the data model, generating the DDL, and creating the SQL SERVER database.
Upon inspection of the generated DDL, the IDENTITY directives were absence. Further research discovered the attributes were absence from the property sheets attached to the various physical tables. Further testing uncovered that these attributes only persist throughout the lifetime of the data modeling session.
I have not had this experience with Oracle physical models e.g.(creating trigger, sequences, etc). Most likely this is a defect in the software, but I was curious to know, if anyone else as run across this opportunity.
Warm regards,
Greg

In version 3.0.0.665, a physical implementation implementation of data model was persisted to SQL Server 2005. The physical implementation required the use of IDENTITIES; the equivalence to an Oracle sequence.
The functionality works fine because the DDL generated correctly and the script was persisted to the target database without incidence. Both the physical model and DMD were saved. After deployment, the client required the addition of several attributes into the model. Since the model hadn't populated yet, the desired approach involved dropping the SQL SERVER database (Oracle Schema), applying the changes to the data model, generating the DDL, and creating the SQL SERVER database.
Upon inspection of the generated DDL, the IDENTITY directives were absence. Further research discovered the attributes were absence from the property sheets attached to the various physical tables. Further testing uncovered that these attributes only persist throughout the lifetime of the data modeling session.
I have not had this experience with Oracle physical models e.g.(creating trigger, sequences, etc). Most likely this is a defect in the software, but I was curious to know, if anyone else as run across this opportunity.
Warm regards,
Greg

Difference between OBIEE Logical Modelling and physical modelling

HI.
what is the difference between logical modeling (BMM) and physical modelling(Physical layer) in obiee admin tool
please narrate it in definition format
thank you
rakesh

Hi rakesh,
Administrator tool consists of 3 layers
Physcial layer:-It is typically first layer built in the repository.Contains objects representing the physical data sources to which the BI server submits queries.It may conatin multiple data sources.The common way is to import metadat from different databases.You can define joins after import if they are not defined.
Business model and mapping layer:-It is defined as business or logical models of data and specifies the mapping between the physical and business layers.This is where the physical schemas are simplified to form the basis for the end user.We can say data is seperated into facts and dimension tables
Presentation layer:-simplifies and organizes the business model to make it easy for users to understand and query
go through the user guides for all the definition and subject
Hope it helps you.my points?
By,
Kranthi
Edited by: Kranthi.K on Sep 1, 2009 10:22 PM

Model-View-Controller implementation help

Hello, all. I'm updating an old, clunky, slow-as-molasses application to a slightly more responsive and expandable app with the help of the MVC pattern. However, I'm having a little trouble figuring out the best way to implement MVC in a Java app. Specifically, I'm not sure of the best way to get the model and two views talking to each other.
My model comes in the form of a couple manager classes that provide access to all the business data for the application. This is a relatively simple client-server app where the server can request that certain data be added or deleted, and the model responds accordingly. Similarly, scheduled tasks that run every 2 minutes can cause certain data to expire or become scheduled for display.
The model provides addXXXChangeListener methods. When a model change occurs that listeners need to know about, the model calls a notifyListeners method, and all registered listeners are notified of the change. View classes that are interested in hearing about model changes register themselves as listeners with the model and implement methods in the XXXChangeListener interface. In this way, the interaction between the model and view is almost exactly like existing interactions between event sources and listeners in Swing/AWT.
Right now, there isn't a lot of decoupling between the model and view, since the View obviously needs a reference to the model to add itself as a listener. The controller for the app sets all that up. Is this a viable way of implementing MVC in a Java app? Any suggestions or advice would be greatly appreciated.

Right now, there isn't a lot of decoupling between
the model and view, since the View obviously needs a
reference to the model to add itself as a listener.
The controller for the app sets all that up. Is
s this a viable way of implementing MVC in a Java
app? Any suggestions or advice would be greatly
appreciated.In classic MVC, the code that registers the listeners, captures the events and updates the model should be in the controller. The advantage being that you could theoretically change the view to use a different model. In reality, the view is generally (but not always) pretty specific to the model (while pieces of the model may not be) so there is little gained by doing this. The other advantage is that this can be a little cleaner and allow the controller to be 'smarter'.
If you are simply worried about coupling the vew to a specfic implementation of the model, create interfaces for the Model classes and let the Controller supply the View with references to the implmentations.

Implement QBE case insensitive search using model layer?

Using ADF 11.1.1.6.2
We know we can set filterFeatures='caseInsensitive' at UI layer to make QBE to search case insensitive.
How can we push that behavior using model layer implementation?
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Using ADF 11.1.1.6.2
We know we can set filterFeatures='caseInsensitive' at UI layer to make QBE to search case insensitive.
How can we push that behavior using model layer implementation?
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How to add an index to a materialized view in Data Modeler 3.3

Hello everyone,
I'm looking for a how-to to add an index to a materialized view in Data Modeler 3.3.0.747, as I coudn't find a way to do it so far.
I looked here:
Relational Model
Physical Model
Oracle 11g
Materialized Views
"my_mv_name"
"INDEXES" IS NOT HERE IN THE TREE
"Tables" does not include it either
Thank you & Best regards,
Blama

Hi David,
thanks a lot. I did so and it worked, but I found a minor bug while doing so:
I marked the table as "Implement as Materialized View" and went to File->Export->DDL (for Oracle 11g).
The generated code (I checked all options in "Drop Selection") includes a row:
DROP MATERIALIZED VIEW mv_mymatview CASCADE CONSTRAINTS ;
which produces a syntax error.
Best regards,
Blama

Physical schema vs logical schema in odi

hi, i am new to odi.I have successfully loaded data metadata to essbase and planning . But still i am not clear why odi uses physical schema when we just uses logical schema while reversing, execution of interfaces etc in designer

Hi,
Logical schema will always point to a Physical Schema .
The aim of the logical schema is to ensure the portability of the procedures and models on the different physical schemas. In this way, all developments in Designer are carried out exclusively on logical schemas.
A logical schema can have one or more physical implementations on separate physical schemas, but they must be based on data servers of the same technology. A logical schema is always directly linked to a technology.
To be usable, a logical schema must be declared in a context. Declaring a logical schema in a context consists of indicating which physical schema corresponds to the alias - logical schema - for this context.
Thanks,
Sutirtha

Designer 9i Printing Physical Schema

Hi,
How can I force Desinger to print a diagram on one page?
Thank you

Hi,
Logical schema will always point to a Physical Schema .
The aim of the logical schema is to ensure the portability of the procedures and models on the different physical schemas. In this way, all developments in Designer are carried out exclusively on logical schemas.
A logical schema can have one or more physical implementations on separate physical schemas, but they must be based on data servers of the same technology. A logical schema is always directly linked to a technology.
To be usable, a logical schema must be declared in a context. Declaring a logical schema in a context consists of indicating which physical schema corresponds to the alias - logical schema - for this context.
Thanks,
Sutirtha

Model Physical Implementation ?

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