Data Modeler - how to access it

Howdy All,
I've heard of somethin' called the data modeller that I should have access to as a developer...
Does anyone know the transaction and how to use it?
Thanking you all kindly.

Hi Steve
<b>SD11-Data Modeler</b> is used, as its name implies, to model your processes.
You can create entity types, connect tables or views to those entities, implement connections between entities and if needed, you can also insert business objects all in a hierarchical way. You can connect data models to each other as well.
By this way, you document your own processes containing also some technical perspective.
Hope this small piece will give some basic understanding.
*--Serdar

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OS41: data modeler, how to use it?

Hi,
I'd like to know how to use T-code OS41: data modeler, when do I need to use it? and How to use? Please kindly help.
Thanks and Regards.

Hi Steve
<b>SD11-Data Modeler</b> is used, as its name implies, to model your processes.
You can create entity types, connect tables or views to those entities, implement connections between entities and if needed, you can also insert business objects all in a hierarchical way. You can connect data models to each other as well.
By this way, you document your own processes containing also some technical perspective.
Hope this small piece will give some basic understanding.
*--Serdar

SQL data modeller -- how to create 1 to 1 relationship foreign key ?

hi guys...
i got 2 tables..
table 1 - CFR
CFR_ID = primary key
table 2 - USER_PLAN
USER_ID = primary key
PLAN_ID,
CFR_ID = foreign key reference (table 1)
The business flows go like this..
insdie CFR table, it contain all records / transactions of a particular user/plan. everytime a new transaction occurs for a plan/user, a new CFR_ID / row will be generated.
after which, the newly generated CFR_ID for the new row , will be updated to the CFR_ID in USER_PLAN
Thus, there is always a 1 to 1 relationship between the 2 table regardless how many CFR_ID is generated for a particular USER_PLAN. as the CFR_ID in the USEr_plan table will always be the latest one generated inside the CFR table.
However, in the data modeller, i am unable to create such foreign key relationship... ANY idea how do i create a 1 on 1 foreign key relationship ? or there is no such way..
Thanks and Best Regards,
Noob

Hi philips,
Thanks for the wonderful reply..
Just to double comfirm with you,
even if i had set a unique constraint on CFR_ID(foreign key column), inside the relationship model, the relationship between the foreign key is still showing as a 1:m relationship right ?
just that a character 'U' will appear beside the CFR_ID column.
However the diagraphm is still showing a 1:M relationship.
is this correct ?
Regards,
Noob

Data Modeler: How to prevent auto surrogate key in supertype/subtypes?

When forward engineering supertype/subtypes, how can I prevent the automatic creation of a surrogate key (propagated to all super/subs)? Data Modeler creates this SK only at the relational level. I have already defined a surrogate identifier in the logical; the intent is to engineer this to the relational model and propagate to each subtype.
Thanks,
Patrick

Thank you Philip for the explanation. I'd like to dig into this a little deeper, as I may be misinterpreting your explanation, and especially the last bit ( "...but foreign keys from subtype table to super-type table are not created" ).
My preferred super/subtype implementation consists of a supertype parent table (ideally with a [manually created] discriminator code value) and any number of subtype child tables, all referencing the parent (via FK column/RI). Note that RI is from the supertype/parent to each subtype/child table, not the other way round as Designer docs suggest (one of three different approaches: all-inclusive single-table, detail tables only, master/detail w/ RI from child to parent [arced]). The implementation I suggest ("the fourth way") allows the painless addition of a new subtype simply by creating a new child table and a new discriminator value for the parent. I've had consistent success using this approach with Designer for many years.
I've verified this successfully with a bare bones logical (3 levels), with appropriate UID on supertype/parent. All seems to transform well to relational model (i.e., all tables have inherited the parent PK, and individual attributes transformed to columns in the appropriate tables). The transform did not include a SurrogateID column.
However, the transform doesn't work quite so well in my full-blown Party model, even though I ensured that a UID was defined on the logical supertype/parent. also confirmed that Hierarchy relationships are defined between supertypes and subtypes. What else could I be doing wrong that causes the transform to create a SurrogateID column on each super/subtype table?
And on a similar note: are you suggesting that SQLDev Modeler transforms a supertype/subtype hierarchy with RI from detail tables to the parent table (i.e., backwards) when selecting "Table for each entity"? This approach would require a new FK column added to the parent table whenever a new subtype table was required.

Data Modeler - How to move relationship lines?

I can't figure out how to move the relationship lines on the data modeler.
Tried a bunch of things that have worked in all the other modelers I've used, but no luck. Couldn't find anything in the help text about it, either.
Edited by: David Wendelken on Nov 14, 2008 4:07 PM

Hi Jim, David,
AutoRoute (on/off) can be managed at diagram level - use right mouse click on empty space.
In current published release (AutoRoute off) - straight lines (only two connection points) cannot be moved. You need intermediate points (at least one) for better arranging. Points (Elbows ) are created using Ctrl+mouse click.
Connection points also can be moved in next EA release.
Philip

Data Modeler - how can I define a foreign key but disabled

I am using SQL Developer Data Modeler Version 2.0.0 Build 570 on Mac OS X (Snow Leopard).
When defining a foreign key constraint, is there a way to define it as disabled?
When the DDL script is generated, the constraint is defined but it is always enabled, I want it to be disabled.
This is possible in the Jdeveloper data modeler, but I am missing the method to do this in SQL Developer Data Modeler.
Any help appreciated.

OraTone wrote:
I am using SQL Developer Data Modeler Version 2.0.0 Build 570 on Mac OS X (Snow Leopard).
When defining a foreign key constraint, is there a way to define it as disabled?
When the DDL script is generated, the constraint is defined but it is always enabled, I want it to be disabled.
This is possible in the Jdeveloper data modeler, but I am missing the method to do this in SQL Developer Data Modeler.
Any help appreciated.Create it and then disable it afterwards if you're using the Connections window to create them.
If you are generating the DDL edit the ENABLED keyword to DISABLED

Data Modeler - How to add foreign keys to physical model?

I imported few tables from data dictionary and tried to generate a DDL file. The DDL didn't include foreign keys for some reason. Then I noticed that the foreign keys are in the relational model but not in the physical model. How do I get those foreign keys to the physical model?

That's the place where I'm looking for the foreign keys in physical model. I noticed that in relational model the Generate check box of a foreign key was unchecked. When I checked it, the key appeared in the physical model. But why is it unchekced sometimes? This has happened only few times, usually the foreign keys do appear in the physical model. If I do something special during import, I don't know what it is...

Data Modeller: how to create and use collection type

Hello,
basically subj. I'm not clear how to ( for example ) create and use the data type based off the varray data type.
Please advise.
thank you
andrew

Hi Andrew,
you can create collection types (varray/table) in two ways:
1) in browser - find "Data Types">"Collection types" node use pop-up menu - it's just "create new collection type" there
2) in Data types model diagram - you can create collection of "certain structured type" or collection of references to it - use "new Collection ..." tool and first click on referred structured type and after that on structured type that will hold the collection - new attribute is added in latter type and if there is no such collection type already defined new collection type is created and you can edit it later.
Philip

TDMS "data model" - how to evaluate?

We are using TDMS for quite some time now and I see certain data transfers which I do not understand:
Table SRRELROLES
That table is always transferred completely in our system (13 years of data, > 70.000.000 entries) even if I select to only transfer two months.
After having opened an OSS call (155066/2009) I was told, that selection criteria is as following:
( ( OBJTYPE = 'IDC0'
OR OBJTYPE = 'IDC1'
OR OBJTYPE = 'IDCB'
OR OBJTYPE = 'IDC4'
OR OBJTYPE = 'IDC9'
OR OBJTYPE = 'IDC8'
OR OBJTYPE = 'IDCA'
AND UTCTIME >= '20081001000000'
OR
( ( NOT OBJTYPE = 'IDC0'
AND NOT OBJTYPE = 'IDC1'
AND NOT OBJTYPE = 'IDCB'
AND NOT OBJTYPE = 'IDC4'
AND NOT OBJTYPE = 'IDC9'
AND NOT OBJTYPE = 'IDC8'
AND NOT OBJTYPE = 'IDCA'
If I do the select on our database:
SQL> select count(*) from SRRELROLES where
2 OBJTYPE = 'IDC0'
3 OR OBJTYPE = 'IDC1'
4 OR OBJTYPE = 'IDCB'
5 OR OBJTYPE = 'IDC4'
6 OR OBJTYPE = 'IDC9'
7 OR OBJTYPE = 'IDC8'
8 OR OBJTYPE = 'IDCA';
COUNT(*)
0
So the first term of the SQL will not read anything, the second after the OR will read all.
I don't understand that.
I have a few other BIG tables, that are also completely transferred (PPOIX, PPOPX, IDOCREL) and if any of the data of those tables is the base for other data, then it's understandable, that our target systems are MUCH too big.
Is there any method of finding out how the tables are "related" against each other and how the data is read?
Regards,
Markus

Hi Markus,
I don't know if you noticed, but SAP created note 1326118 to change the way that SRRELROLES is filtered. It might improve the results you get on your system, it did improve on mine.
By the way, that note changes the standard config by updating CNVMBTSELGRPVAL, so it will give you an insight on what are the standard filters (and how to manipulate them if needed). It's also true, though, that some filters are hard-coded in the selection programs.
Hope this help,
Rui Dantas

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 Modeler: How to create a self reference in ER?

e.g. I create the entity EMP in a logical Subview. Two attributes are here essential for a self-reference: EMPNO and MGR. So each Employee has a reference to his boss. And this information is stored in MGR.
Now I create the entity EMP with the 8 columns from the SCOTT/TIGER schema. After that I define a 1:N-Relation between EMP and EMP. but it looks like I cannot define, which attributes are starting point of the relation and destination.
Who can help me here?
Gerd

Gerd,
you cannot select destination (as you said) attribute - they are automatically generated. However you can achieve what you want - it depends on your starting point:
1) start from logical model (analysis first)
- you create 1:n recursive relationship -
- change the name of created FK attribute to MGR or what ever you want - this is controlled by "FK Attribute name synchronization" setting at "General options>Model>Logical" page
2) start from relational model (reverse engineering of existing status)
- create self reference foreign key - select MGR as FK column;
- reverse engineer to logical model - you'll have FK attribute named MGR
Philip

Data Modeler How to display the "relationship name" vertically

Is there any way to display the relationship name vertically. In Designer, it used to be like that.

there is no such option.
Philip

Information on logical data model.

Hi All,
Can anybody through some light on what is a logical data model, how it should be
created?
Please share documents if any.
Regards,
Pramod

Hello Pramod,
you can refer the below links for data modeling:
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/5d4211fa-0301-0010-9fb1-ef1fd91719b6
http://www.sap.info/public/INT/int/index/Category-28943c61b1e60d84b-int/0/articlesVersions-31279471c9758576df
Regarding the Logical Data Modeling, you can refer the below link for basic understanding:
http://en.wikipedia.org/wiki/Logical_data_model
Hope this will help you.
TNR,
Saurabh...
Reward if found useful.
Edited by: Saurabh Kumar Sahu on Jul 28, 2008 10:11 AM

BW Data model

Hi Experts,
Need advise on data model how to achieve the reporting requirement
I am extracting data from a Z Table from ECC,And data will be like
CHAR1
CHAR2
CHAR3
CHAR4
CHAR5
CHAR6
KF1
KF2
KF3
KF4
C1
C2
C3
C4
C5
C6
100
200
300
400
A1
A2
A3
A4
A5
A6
400
300
200
100
B1
B2
B3
B4
B5
B6
500
250
125
75
KF1 is related to C5
KF2 related to C6
My reporting requirement is to show like
C1
C2
C3
C4
C5
100
C6
200
A1
A2
A3
A4
A5
400
A6
300
B1
B2
B3
B4
B5
500
B6
250
Please advise how to achieve this

Hi,
You can follow this procedure:
1.) You can create an infoprovider with these characteristics; char1, char2, char3, char4, and charboth (for char5 and char6). Add also the keyfigures KFboth, KF3 and KF4.
2.) In the transformation assign char5 with charboth and assign KF1 with KFboth. All other characteristics will be assigned with the same names.
3.) Add a new rulegroup. In this rulegroup, all characteristics will be assigned automatically. Leave them as it is. Assign char6 to charboth and kf2 to kfboth. All other key figures will not be assigned.
4.) In the query designer, add the characteristics as rows and kfs as columns.
That will solve your issue.
Hope it gives an idea
Regards
Yasemin...

Data Modeler Difference script

I don't find in Data Modeler function to alter existing object in database. For example i have table in database, which contains two columns (ID, NAME). I add third column ADDRESS in project in Data Modeler, how can i add to database using Data Modeler?

you can look at online demonstrations http://www.oracle.com/technetwork/developer-tools/datamodeler/overview/index.html
and especially this one http://download.oracle.com/otn_hosted_doc/sqldev/importddl/importddl.html - it's for DDL file import however it's the same for database.
also look here How to update/alter database from Data Modeler?
Philip

Data Modeler - how to access it

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