OWB9i as Data Modelling tool

I was told that OWB9i can also be used as Data Modelling tool. Assume we had developed DWH using Bus Architecture. Now How can I see the entire scehma that contains all Facts and Dimensions with their attributes and measures with primary key and Foreign key relationships?. Also please tell me what are the features available in OWB9i tool as Data Modelling tool.Thanks in advance for your valuable information.

SQL Developer has a data modeller module which, I believe, has recently changed to a free license.
http://www.oracle.com/technetwork/developer-tools/sql-developer/downloads/index.html
http://www.oracle.com/technetwork/developer-tools/datamodeler/overview/index.html
I believe this has reverse engineering capability.
I'm not sure whether 8i will cause it a problem.

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Export import in sql developer data modeling tool

I tried sql developer data modeling tool
but i have a proble
i select file> import > data dictionary
then created a connection to db and selected some tables and got the er digram successfully
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but when i give this file to another developer and he imported the file File>import>data modeling design
the digram is not displayed
is it a bug or im doing something wrong

ok it was my fault
it's not the xml only
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Data modeling tool: physical model migration

Hi,
I have imported my relational model with a generated physical model for oracle 9i.
I'd like to migrate my DB to oracle 10g, but I don't feel like creating a new physical model for Oracle 10g from the scratch and configuring it all.
Is there any way to copy that oracle 9i physical model into an oracle 10g model? I know there could be any implementation change from 9i to 10g, but at least copy the main 99% (and warn about the 1% impossible to replicate in 10g).
Could this feature be taken into the production version?
By the way, is this a BUG? when I start the tool, my oracle 9i physical model is not shown in the tree, and I've to right-click over physical model, press open, and then select oracle 9i, to be shown in the tree. But I close the data modeling tool, and when I start again, there is no physical model shown in the tree :(
thanks a lot in advance, I'm evaluating the tool.

Thank you very much for your reply, and hearing those news makes me very happy, because I'm evaluating the product and I miss some functionality like that.
By the way, where can I find the new functionality or the fixed one that is going to be on the production release? Or could yo send it to me by email or any other way? I'm very interested in it.

How to print ERD from Data Modeler Tool

Hello Everyone,
I have an oracle 10g DB and I want to create its ERD. I was able to export the tables using Data Modeler tools but I cannot find the option to arrange these table on pages and then print them. How can I do that? It's a very basic requirement and I am sure it must be here somewhere but I can't seem to find it.
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Hi Afraz,
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Best FREE data modeling tool

What is the best FREE data modeling tool? Thanks.
Kalman Toth Database & OLAP Architect
SQL Server 2014 Database Design
New Book / Kindle: Beginner Database Design & SQL Programming Using Microsoft SQL Server 2014

Hi Kalman,
According to my knowledge, Microsoft Office Visio is helpful for building data model. For more information, please review this article:
Create a Database Model (also known as Entity Relationship diagram).
Besides, you can also use other third-party tools such as
Erwin, SQL Power Architect to design SQL Server database. However, Microsoft cannot make any representations regarding the quality, safety, or suitability of any the third party software or information.
There is also a discussion about free data modeling tool in the following thread for your reference.
https://social.msdn.microsoft.com/Forums/en-US/b70d2cdb-dc7f-4e89-a0ae-9dbf5687199e/free-data-modelling-tool?forum=databasedesign
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Oracle Data Modeling tool interoperability with QDesigner models.

Hello,
Would it be possible to get some information on how Oracle SQL Developer Data Modeler works with models from other data modeling tools such as QDesigner.
How can Quest QDesigner read the .cdm (conceptual data models) and the .pdm (physical data models) from QDesigner.
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Mary

SQL Developer Data Modeler does not work with QDesigner models.
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Data Model Exporting - MDM to Erwin or another data model tool

I would like to export the latest MDM physical data model in production to any erwin modelling tool or any othe data modelling tool

To export the schema of an MDM repository to an XML file:
1. In the Console Hierarchy tree, right-click on the MDM repository whose schema you want to export and choose Export Repository Schema from the context menu, or select the tree node and choose Repositories ® Export Schema from the main menu.
If the top-right pane is currently displaying the list of MDM repositories, you can also right-click on the repository in the grid and choose Export Schema from the context menu.
2. Click Save to close the dialog and export the schema.
Schema files are stored in XML format in a user-defined location using a user-defined filename. The file contains the schema definition only; no table or field content.
http://help.sap.com/saphelp_mdm550/helpdata/en/f2/2f21039e9146098e7b238f1a4c8e5e/content.htm
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Does Oracle 9i provide a database modeling tool? if not, which tool in the market would you recommand? thanks in advance!

Oracle Gives Designer Tool for Data Modelling.
However ER-Win And ER-Studio can be also used as both of them are vwry good tool for modelling.
Regards

Installing Data Modeler tool

Hi,
I am unable to install data modeler on our PCs. We have java 1.5 on all our PCs and it is not possible to upgrade to java 1.6. This is because a mandatory application in the organization is not configured to use java 1.6.
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Hi,
no problems if your OS is Windows - you need the version with JRE included - in this case your environment won't be affected (no installs).
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Data modeling tool to design a dwh - SQL Server 2008 R2-2012

Hi,
I need to know if it exists a Microsoft tool to model the data structures of a data warehouse. I generally use the SQL Server diagrams but I'd like to know an enhanced tool. Visio?
Thanks

Hi,
You could download a 60 day free trial of Visio; -
http://office.microsoft.com/en-gb/visio/visio-professional-2013-free-trial-flowchart-software-FX103791368.aspx
Have a look at a related link; -
http://social.technet.microsoft.com/Forums/sqlserver/en-US/620009b1-9625-4e1f-8574-f4049718ffe2/shapestemplates-bi-for-visio
Kind Regards,
Kieran.
Kieran Patrick Wood http://www.innovativebusinessintelligence.com http://uk.linkedin.com/in/kieranpatrickwood http://kieranwood.wordpress.com/

Numeric overflow in data modeling tool

It only happens with one of my schemas but when I attempt to import it from the data dictionary it fails with a numeric overflow error:
2009-04-01 10:15:34,899 [Thread-2] ERROR AbstractDBMExtractionHandler - java.sql.SQLException: Numeric Overflow
2009-04-01 10:22:50,532 [Thread-3] ERROR AbstractDBMExtractionHandler - java.sql.SQLException: Numeric Overflow
2009-04-01 10:27:12,888 [Thread-4] ERROR AbstractDBMExtractionHandler - java.sql.SQLException: Numeric Overflow
Has anyone seen this before. I'm pretty sure it's only a subset of my tables as I can select a few here or there (out of 300) and it's fine.
Thanks,
Coburn

Hi Coburn,
we have this bug reported several times. Unfortunately we cannot reproduce it. The bug is related to something specific - I import my whole database (1800 tables, object types, object tables) and no problem. We want to sort it out but we cannot fix it if we cannot reproduce it. Any help is welcome.
Thanks in advance,
Philip

When to expect a new version of the Data Modelling tool ?

Hello,
just a quick question - what's the time horizon for the new version ? and where ( if at all ) can i see the list of bugs/features to be addressed in it ?
Thank you.
Andrew
Edited by: andrey on Jan 16, 2009 8:40 AM

Hello,
what is soon? Do you know exact date or month?
Thank you
Regards
Martin

Tools for data modeling

Hi,
Can any one tell me if there are any specific tools used for logical data modeling in SAP BW data modeling . I have used Erwin as a data modeling tool for implentation of data ware house, I would like to know if there are any specific tools for SAP BW implementations.
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tanu

Another related discussion: Looking for EDW modelling tool recommendations for BW

Some observations on my first use of Data Modeler Beta

First of all, I can see this tool has a lot of promise.
I hope Oracle keeps at it, it could turn into a real winner if all the features I see being worked on mature.
Thanks!
Here are a few observations on things that I found non-obvious or tedious to do.
1. When designing an entity, I want to give it a name, a definition, attributes and keys. I want that process to be quick and require the minimum amount of mouse-clicking/navigation fiddling as possible. The current way of defining the attribute's datatype and size is painfully slow. I have to click to get a pop-up. Then I have to click to choose from a set of categories. Then I have to click on a dropdown list. If I try to use the down-arrow on the dropdown list, it works, but not if I go past the one I want. The up-arrow won't take me backwards in the list, so more clicking. It's just a nasty, slow interface to do a simple task that I have to do a thousand times in a data model. If I need to change the size of something, back I go thru the entire process all over again.
That makes it doubly slow to work in the most natural way, which is to list the attributes and the datatypes, then come back and refine the sizes once the model is maturing and relatively stable.
2. Adding an additional attribute requires a mouse click instead of a down-arrow. That means I have to take my hands off the keyboard to add a new attribute. Maybe there is some short-cut key that does that, but I have better things to do than memorize non-standard keyboard mappings. Make the down/up arrows works as they should.
3. Adding the comment that describes the attributes is not quite as slow, but still requires more keystrokes/mouse movements than it should. It's hard enough to get developers to document their attributes, don't discourage them.
4. I can't see the list of attributes, data types, sizes, key/mandatory settings, and the comment at one time while editing the entity. Makes it harder to grasp what all the attributes mean at a glance, which slows down the modeling and the comprehension of an existing model.
5. All the entities I created had primary keys with columns in them. But when I tried to have it build a physical model, it complained that some relationships had no columns in them. For the life of me, I couldn't figure out how to fix that. Never had that problem in any other case tool.
6. Getting it to generate DDL was awkward to find. Make it something obvious, like a button on the toolbar that says "Generate DDL".
7. Apostrophes in the Comments in RDBMS are not escaped, so the generated DDL won't run.
8. For the ease of use/speed of use testing on high-volume key tasks, make the developers do the task 1000 times in a row. Make them use long names that require typing, not table A with columns c1, c2 and c3. Long before they get to iteration 1000 they will have many ideas on how to make that task easier and faster to do.
9. Make developers use names of things that are the maximum length allowed. For example, for a table name in oracle, the max length of the name is 30 characters. The name of one testing table should be AMMMMMMMMMMMMMMMMMMMMMMMMMMMMZ. That's a capital A followed by 28 capital M's and a capital Z. For numbers, use the pattern 1555559. If the developers can't see the A and Z or 1 and 9 in the display area for the name in the default layout for the window, they did the display layout wrong. For places where the text can be really long, choose a "supported visible length" for that field and enter data in the pattern AMMMMMMMMMMMMMMMQMMMMMMMMZ, where Q is placed at the supported visible length. if the A and Q don't show, the layout is wrong.
10. SQL Developer has quite a few truly gooberish UI interaction designs and I can see some of that carrying over to the Data Modeler tool. I really recommend getting a windows UI expert to design the ui interface, not a java expert. I've seen a lot of very productive windows user interfaces and extremely few java interfaces suitable for high-speed data entry. Give the UI expert the authority to tell the java programmers "I don't want to hear about java coding internals - make the user interface perform this way." I think the technical limitations in java UIs are much less than the mindset limitations I've seen in all to many programmers. That, and making the developers use their code 1000 times in a row to perform key tasks will cause the UI to get streamlined considerably.
Thanks, and keep up the good work!

Dear David,
Again thank you for your valuable and highly appreciated feedback. Find included a more elaborated answer to your observations:
*1. When designing an entity, I want to give it a name, a definition, attributes and keys.*
In the new Early Adopter Release, a "SQL developer like" property window has been added for Entities and Tables. For each attribute/column you will have the ability to add name, datatype, Primary Key, Mandatory and comment from one and the same screen
*2. Adding an additional attribute requires a mouse click instead of a down-arrow.*
An enhancement request has been created
*3. Adding the comment that describes the attributes is not quite as slow, but still requires more keystrokes/mouse movements than it should.*
In the new Early Adopter Release, a "SQL developer like" property window has been added for Entities and Tables. For each attribute/column you will have the ability to add name, datatype, PK, M and comment from one and the same screen
*4. I can't see the list of attributes, data types, sizes, key/mandatory settings, and the comment at one time while editing the entity. Makes it harder to grasp what all the attributes mean at a glance, which slows down the modeling and the comprehension of an existing model.*
See former answers. For meaning of attributes you can also use the Glossary and Naming Standardization facilities: see Tools Option menu, Glossary and General Options for naming standards
*5. All the entities I created had primary keys with columns in them. But when I tried to have it build a physical model, it complained that some relationships had no columns in them. For the life of me, I couldn't figure out how to fix that. Never had that problem in any other case tool.*
A Bug report has been created. Issue will most probably be solved in the nexr Early Adopter release
*6. Getting it to generate DDL was awkward to find. Make it something obvious, like a button on the toolbar that says "Generate DDL".*
An enhancement request has been created.
*7. Apostrophes in the Comments in RDBMS are not escaped, so the generated DDL won't run.*
A bug report has been created
*8. For the ease of use/speed of use testing on high-volume key tasks, make the developers do the task 1000 times in a row. Make them use long names that require typing, not table A with columns c1, c2 and c3. Long before they get to iteration 1000 they will have many ideas on how to make that task easier and faster to do.*
I aplogize, but I don't understand clearly what you want to say with the use/speed of use here.
*9. Make developers use names of things that are the maximum length allowed.*
Our relational model is for use for not just Oracle, but also DB2, SQL Server and in the future maybe other database systems. Whicjh means that we can't taylor it to just one of these database systems. However you can set maxinum name lenghts by clicking right on the diagram and select Model Properties and here you can set naming Options. Here you can also use the Glossary and Naming Standardization facilities: see Tools Option menu, Glossary and General Options for naming standards
*10. SQL Developer has quite a few truly gooberish UI interaction designs and I can see some of that carrying over to the Data Modeler tool.*
Fully agree. As you will see in our next Early Adopter release we have started to use SQL Developer like UI objects.
Edited by: René De Vleeschauwer on 17-nov-2008 1:58

Domains and Logical Types in Data Modeler

Been out of serious design work for a long time. Can someone provide a good pointer to descriptions on Domains and Logical Types and presented in the Data Modeling tool?
For instance I am having trouble tracking the following distinctions:
Domain Logical Type
LongText Varchar
ShortText Char
Text Char
NText NTEXT
NVarchar NVARCHAR
CHAR and VARCHAR are listed as Logical Types but not Domains. There is a TEXT logical type, but ironically, it does not correspond to the Text Domain. Varchar2 appears in neither list. I believe I ready the N* domains/types are for international characters (multi-byte?), but basically see no pattern here so was hoping someone could straighten me out.
Thanks,
Robert Kuropkat

Hi Robert,
Logical types are abstraction for native data types in supported databases. You need logical types if you want to import from database or DDL script (mapping of native to logical is important here) or want to generate DDL script (mapping of logical to native). You can delete all logical types (only "unknown" has importance) and create your own logical types. In this case you have to map them to native database types. If you use only Oracle database then you can delete types related to other databases. Of course you can rename existing logical types if you don't like how they are named.
Domains are based on logical types - you need logical type in order to have valid domain definition. Provided domains are just sample. You can delete them - the only important here is "unknown". You can create two types of domains (it's usage point of view) - 1) per installation - common for all designs; 2) per design - they appear only for design they are defined. You also can import domains.
Also domains are automatically created during import of DDL script - it's kind of data type aggregation - domain is created for each used data type.
Best regards,
Philip

OWB9i as Data Modelling tool

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