ERwin goes beyond data structures to include modeling triggers and stored procedures. You can also reverse engineer existing databases to create a data model. But only two notations are supported: IDEF1X and Information Engineering. The ERwin design interface makes it easy to lay out and refine your initial designs. ERwin likely supports your relational database engine - the latest version adds support for Teradata, for instance. The tool may be expensive, but it's hard to think of anything ERwin doesn't do in the data-modeling field.ĮRwin lets you graphically develop a logical data model and generate a database schema from your design, which you can implement in your relational database management system. It's easy to see why ERwin earned Merit Award distinction in the Databases and Data Development and Modeling category of this year's VSM Readers Choice Awards.
This month we're looking at two related tools for data modeling: CA ERwin Data Modeler for designing your database schema and Red Gate SQL Source Control for keeping track of the changes that you make to your schema as you add and modify applications. This complete package takes care of modeling data and managing the resulting designs - provided you're using entity-relationship modeling to design your databases. Product Reviews Designing Databases with ERwin Data Modeler 7.3
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