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Tool for DATA MODELLING


Tool for DATA MODELLING

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Vijaya Kadiyala
Vijaya Kadiyala
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Group: General Forum Members
Points: 5541 Visits: 409
Hi

ERWin is best.

Thanks -- Vijaya Kadiyala
http://dotnetvj.blogspot.com

Thanks -- Vijaya Kadiyala
www.dotnetvj.com
SQL Server Articles For Beginers



GregoryAJackson
GregoryAJackson
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The place I work is using EA and having used ERWin and ERStudio extensively in the past, I absolutely HATE EA.

This could very well be a "You dont know how to use the tool" thing, but so far, I cant do the following things:

1) Name my constraints indexes
2) define referential integrity and migrate PKs to Linked tables with an FK
3) define Schemas
4) Resolve Many To Many relationships
5) Create Database Scripts that utilize specifi db attributes (File Groups, etc)
6) Define relationship and cardinality rules
7) etc etc etc

I'm hoping I find that it's just a learning curve thing. So far....I'm not impressed at all.

so far this tool seems very much like a UML Modeling tool (which it is).

Gregory A Jackson MBA, CSM
PaulB-TheOneAndOnly
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My money is with ERWin; be sure you get the yourBrain plugin working with it :-D

_____________________________________
Pablo (Paul) Berzukov

Author of Understanding Database Administration available at Amazon and other bookstores.

Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
David Lu
David Lu
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After using ERwin for many years, I shifted to ERStudio at beginning of this year. And I am happy with the shifting. (SQL only, it is cheap)



GregoryAJackson
GregoryAJackson
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I'm making a decision now at my current workplace.

Folks at ERStudio wont return my calls, etc.

Probably gonna go with ERWin just by default.

Gregory A Jackson MBA, CSM
halil.lacevic
halil.lacevic
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A good database design starts with a list of the data that you want to include in your database and what you want to be able to do with the database later on. This can all be written in your own language, without any SQL. In this stage you must try not to think in tables or columns, but just think: "What do I need to know?" Don't take this too lightly, because if you find out later that you forgot something, usually you need to start all over. Adding things to your database is mostly a lot of work.

There are a lot of tools that can help you:

Archi
A free and open source visual modelling and design tool, Archi is used to create models and modelling sketches. By providing an open source reference implementation of ArchiMate, Archi is presently one of the tools used to implement the Open Group ArchiMate Model Exchange File Format.
Price: Free

PowerDesigner

PowerDesigner is arguably the industry’s leading data modelling tool. Its features include: fully integrated models, different modelling techniques that cater to both an IT-centric audience and non IT-centric. It also supports a powerful metadata repository and various output formats. It has a nice and polished user interface with easily readable help documentation aiding the user to quickly solve ad hoc problems.

Price: $2,000

SQLDbm
  • Pricing: Free
  • Forward engineering: Use SQLDBM to create a physical model or ERD of your database
  • Reverse engineering: Use the reverse engineering feature to export your database schema as a SQL script
Features:
  • Create database objects like tables, objects, relationships, indexes, quickly and intuitively
  • Alter and edit database objects inline in your diagram
  • Copy or Move columns across tables
  • Zoom in and out of diagrams
  • On-the- spot design anywhere on any browser
Price: Free


halil.lacevic
halil.lacevic
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Points: 55 Visits: 10
So far, I have tried many online tools. However, I will list you some of the tools that helped me a lot.

SQLDbm


SQLDBM offers you an easy, convenient way to design your database absolutely anywhere on any browser, working away without need for any extra database engine or database modelling tools or apps. Use SQLDBM to design and manage both large and small databases and data models on the fly. All while incorporating any needed database rules and objects such as database keys, schemas, indexes, column constraints and relationships.

Price: Free

AquaData Studio ER Modeler

A free 14-day evaluation copy can be downloaded. The purchase price includes 12-month support. After the first year, support can purchased for 35% of the original license price.

"Discounted licences are available for qualified Academic users and free licenses are available for qualified Open Source Software (OSS) Developers."

Price: $400

Dezign

A recent upgrade offers significantly improved features. Supports Forward and Reverse Engineering for about 20 different Databases.

Price: Offers a Free download or starts at $259 to buy
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