What is Data Modeler?

Hi Pals
What is Data Modeler in ABAP. We use SD11 for it.
But Why/Where/How we are using the Data Modeler?
Plz provide a clear view n some tutorials also.
Thx
Aalphy

Hi Aalphy AnLe ,
The following websites give complete details about Data Modeler:
Data Modeler: overview
http://help.sap.com/saphelp_nw04/helpdata/en/22/bd1781460a11d188fe0000e8323d3a/content.htm
Example of a Flight Model : Data Modeler
http://help.sap.com/saphelp_nw70/helpdata/en/cf/21f304446011d189700000e8322d00/content.htm
cheers!
gyanaraj
****Pls reward points if u find this helpful

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What is data modeling how it is linked to BAPI?

Hi,
What is Datamodeling and how it is linked to BAPI?
Immediate reply is highly appriciable?
Regards,
Chow.

Datamodelling is much like all other modelling.
First you create a drawing of the original object. Then you buy some plywood or other suitable material for your model and cut this according to your drawings and scale. If you are rich and have the time you can create a 3D-model of your object and get laser-cut plastic or metal parts for your model.
When you have all your parts it is time to paint them. If you are lucky there is a shop specialising in everything for modellers, so they will have different kinds of paint in a good variety of colours.
Finally you assemble everything, and - hey - there's your model. Now, that wasn't too difficult, was it?
The answer to your second question is that datamodelling fits BAPI like a glove fits a fish. At least that is usually the case, but it depends...

Data model in Interactive Reporting

Hi,
Could any one clarify me on What is Data model in Interactive report and how we can use exactly.

A data model is the physical representation of your tables joined together.
In SQL terms it the FROM and WHERE (JOIN) clauses.
an IR Query section depends on a Data Model. That Data Model can be a Master Data Model (Shared with many Query Sections) or a regular Data Model.
Master Data Models cannot be changed within the Query Section - Their Background is Grey and will indicate so in the upper left corner of the screen...
Locked Data Model: {data model section name}
Master Data Models are useful in that you only design it once and then it and its connection are shared with many Query Sections. And modifications to the Data Model are then applied in the Data Model Section and each dependent Query Section has those changes.
For a more comple defintion open Interactive Reporting and go to HELP. In the Search type "Data Modeling"
You will have plenty to read.
Wayne Van Sluys
TopDown Consulting

Data Modeler - SD11

Can anybody please explain to me what is data modeler and what is it used for. What's the use of those enteties for programers,
When do you create or change data model?
Thank you.
Jana

Check these..
http://help.sap.com/saphelp_nw04/helpdata/en/4c/af2102efe2934f87fa2f1cee902bda/content.htm
http://maxdb.sap.com/currentdoc/42/0b587df71e5415e10000000a114cbd/content.htm

What are the steps needs to be perform to define a data model

What are the steps needs to be perform to define a data model
a. Information Gathering
b. Hardware & Software
c. Structure the Information MDM
d. Transfer into a Physical Model BW data model
e. Explore use of existing model Business Content

Hi Siva,
 Very first activity is Proof of concept (POC), here we have to show How BW works for clients Reporting requirement during POC we as BW consultants need to creat some sample BW back end objects and also some reports based on business requirement. This is very crucial stage as Client Judge wethere BW would meet his demands. If every thing is fine then next step is Bidding.
After Bidding the contract then actual Project intiates. from here we follow ASAP methodology.

Project Preparation
Here Senior Consultant would go to Client place for Business Process Transistion and to know in what way the Architectue should be set up so here Basis People will come into picture.
Blue Print
Transistion could be understood by BRD (Business Requirement Documents) BRD states what is exact requirement and it is given by End users.
 By seeeing thr BRD's we as BW consultants must prepare APPlication Design Documents . The Application Design Documents states all the Technical aspects that needs to be performed as BW backend and also as well as Frontend.
Realization Phase
Here as BW consultants we must start confuguring as mentioned in ADD's by taking care of all performance aspects, once all the configuration are done we do Unit testing. unit testing is an activity where we check all the design process wether it running correct or not. After unit testing we move the design objects to Qulaity for Integration Testing.
Testing
 Here end user will check all the objects, reports on end to end basis. after integration testing is done then UAT ( User acceptance Testing) would come into picture where user check each process and sign off.
Go live
Here all the object will be moved to Production where end users and power users can start working on the system. intially for some days Development team would be taking care of all support activites there after it will be transitoned to support team.
Hope It helps you.
Assign Points if it usefull
Regards
Sujan

How can I find out what is causing this error in SQL Developer Data Modeler

Friends,
I am trying to import entities into into SQL Developer Data Modeler from Oracle Designer 10.1.2.3.
In case of need I perform these steps to perform the import:
File --> Import --> Oracle Designer Model --> Select database connection --> Select work area --> select application system --> select one entity --> Click finish --> Import starts
During the import process I see an alert dialog box with the message:
There are errors in import - check Log file Clicking Ok dismisses the alert box and I see the following summary screen:
Oracle SQL Developer Data Modeler Version: 2.0.0 Build: 584
Oracle SQL Developer Data Modeler Import Log
Date and Time: 2010-08-09 14:27:26
Design Name: erdtest
RDBMS: Oracle Database 10g
          All Statements:           32
          Imported Statements:      32
          Failed Statements:           0
          Not Recognized Statements:      0The Entity is then displayed in the Logical View within SQL Developer Data Modeler.
Upon checking the log file I see the following entry:
2010-08-09 13:50:34,025 [Thread-11] ERROR ODExtractionHandler - Error during import from Designer Repository
java.lang.NullPointerException
     at oracle.dbtools.crest.imports.oracledesigner.logical.ODORelation.createArcs(Unknown Source)
     at oracle.dbtools.crest.imports.oracledesigner.logical.ODORelation.generate(Unknown Source)
     at oracle.dbtools.crest.imports.oracledesigner.ODExtractionHandler.generateDesign(Unknown Source)
     at oracle.dbtools.crest.imports.oracledesigner.ODExtractionController$Runner.run(Unknown Source)
     at java.lang.Thread.run(Thread.java:619)Can anyone shed any light on this error?
Thanks in advance for any help you may be able to provide.

No this helps a lot. It's not strange. Firstly, in a versioned repository you should see Private Workareas and Shared workareas, so your workarea may be in either of these. It won't be in the Global Shared Workarea, as this only for non-versioned repositories. (I like to open the RON by selecting the full Repository, that way I can see the private and shared worlareas and the configuration and containers all in the same tree.
Now your workarea is defined by a set of rules, so when you expand the workarea in the RON, and select the object, then that's the workarea and object you'll see in the import dialog in the Data Modeler. So if you check it out and check it back in, and can't see it in the RON, then the rule is not seeing this object. (Did you refresh the workarea in the RON?) If you can't see it in the RON, you can't see it in the Data Modeler. If you're working in a versioned repository, you need to work in the specific work area, i.e V27 and this is what you need to select in the Data Modeler.
It looks like you are selecting the wrong workarea in the Data Modeler.
Sue

What version of Data Modeler comes with SQL Developer EA 3.1?

Hi:
I've looked but can't find what version of Data Modeler is shipped with SQL Developer 3.1 EA1. Is it Data Modeler EA 3.1 or the production Data Modeler 3.0 version?
Thanks,
Doc

Hi:
I ran an import and here's what the log showed...so it looks like SQL Developer EA 3.1 uses the production version of SQL Data Modeler...3.0.
Oracle SQL Developer Data Modeler 3.0.0.665.2
Oracle SQL Developer Data Modeler Import Log
Date and Time: 2011-11-14 14:19:42 PST
Design Name:
RDBMS: Oracle Database 10g

What is the default package tu put in a data model ?

Hi,
I want to call a procedure *"EXTRACTION"* which is located in the default pachkage of my database.
What shoud i put in my data model? i feel that this line is wrong :
*<dataTrigger name="beforeReport" source="Extraction"/>*
Thnaks,
SAAD

Hi,
i have plaeced my procedure directly in my procedure folder not in a package.
so if im correct, the default package will be nothing so i just put the name of the procedure.
is that true?
Tnaks,
SAAD.

What's the best way to model the following requirements in a data model?

I need a data model to represent the following scenario but i just can't get my head around it.
Class A has many Class B's. Class B's can have many Class C's and vice versa. So ultimately the relationship for the above 3 classes is as follows:
Class A -- (1 : M) --> Class B --- (M : M) ---> Class C
And Class C must know about its parent referenced (Class B) and also same applies to Class B where it needs to know who owns it (Class A).
Whats the best way to construct this? In a Tree? Graph?
Or just simply:
Class A has list of Class B and Class B has list of Class C.
But wouldn't this be tight dependencies?

Theresonly1 wrote:
Basically:
A's owns multiple B's (B's need to know who owns it) BUT a B can be only owned by one A
B's owns multiple C's AND C's can be owned by multiple B's (this is a many-many relationship, right?) - Again; (C's need to know who owns it)I'd reckon that you'd need some references. First, figure out the names of each tier of class. I would say maybe A is a principal/school, B's are teachers (because typically teachers only teach under one principal/ in one school), and C's are students (because teachers can have multiple students, and each student has multiple teachers). So now that you have the names, make some base classes. If I understand your problem correctly, A's really don't need to know who they own, but B's need to know who owns them, so A's don't need to have much of anything. B's have a reference to the A that owns them, but not much else because they don't need to know who they own. C's own nothing, but they are owned by multiple B's, so they have an Array of refrences to each of the B's that own them. I'd use an ArrayList, considering each could have a different amount of B's, but you could do it with an array if you tried. I'll leave it up to you how you implement everything, but I'll give you some guides to how I might do it:
public class Principal{
public class Teacher{
      public Principal owner;
      public Teacher(Principal owner){
            this.owner=owner;
public class Student{
      public Teacher[] owners;
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}In Student, I'm pretty sure thats how you allow an undetermined number of parameters be used, and I'm pretty sure that it comes out as an array. I hope this helps you!

What is the best workflow with SVN and Developer Data Modeler.

I am workin on strategy to fullfill next tasks with Data Modeler:
* Posibility to work on paralel branches for model
* Merging changes from different branches
* Generating upgrade scripts for changes (from one commit till other)
* Maintaining posiblity to fast build empty database for any version of model
What are your ideas?
Do you use some database for thease operations or you do it only using Modeler?
Does SVN merge works fine with Modeler?
How you work with versioned Modeler and many versions of different development DBs.

Hello,
We work with SVN and DM too, but do not use branches for DM to prevent merges.
If multiple developers work on the same design, each developer checks out the design. A lock can be used to prevent the update of the same object by multiple developers (if you want).
If you commit changes in SVN, the other developers get informed on these changes by the 'Pending changes'. They can decide whether or not they include those changes.
If you synchronize with the other developer changes, you can create alter or create scripts by importing the target database and generate scripts.
If you want to build a historical version of the model, you check out a version of the design with a specific revision (you can specifiy this during checkout). You build create scripts based for this version.
Joop

Just wondering, what kinda tools do you prefer for data modeling

Reading alot about datamodeling, from E-R diagrams to UML. In your database designs. From the conceptual, logical and physical model. What tool you prefer the most and why. What is a good tool for such things. And does Oracle supply such tools. Just curious as to what the professionals use.
Pete

ER-WIN is your tool for Database physical / Logical data modeling.

What happened to Effort metrics in the Custom Reports data model?

What happened to Effort metrics in the Custom Reports data model?
Is there any way to use the Custom Reports data model to report on task effort? This was a metric captured in the Standard Reports Data Package, but looking through the metrics in the Custom Reports data model (particularly the ServiceTask Fact table) I do not see any effort related metric.

Ed is right. The Custom Report data model on pre-2007.1.1 did not contain task effort data but it is added as a fact to report against in the 2007.1.1 release. You will get this once you upgrade to 2007.1.1 and turn on the task effort entry setting in site administration.

What are advantages including DSO in Data Modeling?

Hi,
I want to know what are the advantages of using DSO in data modeling?
Thanks,
Sri Arun Prian.

Hi.......
DSO is mainly use for data staging.............DSO has the overwrite option which we cannot get in Infocube.......
Seen from a datawarehouse perspective the usage of ODS is essential if You wish to build Your DW architechture according to the principals of enterprise datawarehouse (short EDW).
In general there are several advantages of building an Enterprise structure but most importantly:
1) With the ODS You secure that You only extract data from the source once thereby reducing the performance load on the source. Data can be populated internally via the ODS object to reuse the extracted data.
2) With delta it is very easy to reestablish a delta load from the ODS to the Datamart (InfoCube).
3) With the ODS in place You can reduce the amount of data available in the Datamart thereby improving performance on You reporting structures.
Notice that according to the Enterprise principals it is very important not to mix up an enterprise layer (ODS) with a staging layer. Typically the staging layer will be flushed after 1 or two days. The enterprise layer contains all historical data as long as required.
Hope this helps.........
Regards,
Debjani.........

What kind of real time problems and issues arise in Data Modelling

Hellooo experts,
I am not a BW expertise, so just want to gather some knowledge on Problems and issues related to DATA MODELLING, if any body have a document or a link can you please snd it to [email protected] or reply to this post. I promise to reward you for proper answers hope this is the way i say thanks for your help.
kishore

hi kishore,
The first and most important problem is to understand Clients requirement. Clients even some time not aware of how to utilize efficiency of BW, as they are very much use to with traditional SAP R/3 reporting. So most of time we have to suggest options to client.
If we come to technical aspect, than identifying Key Figures and Characterstics is the most important task. And how you map that to available infoobjects. Attributes also plays major roles, like which attributes is better to use as navigational one and which as exclusive attribute.
Their is long list for data modelling issues, its better you refer either Mastering BIW book by Mac'Donalds. And SAP Help Library is also having good material.
regards,
kamaljeet

What are nested groups in data model?

I am new to Oracle reports. I am trying to modify the data model query. I don't understand nested groups . i.e There are two groups within one groups. These two groups are linked by dotted line. I don't find any information in online help. Please help me to understand this feature. I appreciate any link which explains this.
Thanks
Message was edited by:
user609146

Hello,
If it is something similar to the data model screen shot at :
http://download-uk.oracle.com/docs/cd/B14099_17/bi.1012/b13895/orbr_matrix.htm
then, it is a matrix Report
Regards

What is Data Modeler?

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