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MacA&D and WinA&D support a rich environment for data modeling and SQL code generation. In addition to creating logical and physical data models, diagram presentations can be customized and non-visual SQL elements can be defined. SQL can be generated for RDBMS products including Oracle, DB2, SQL Server, Sybase, Informix and InterBase. An Entity Relation Diagram (ERD) shows the static structure of information in a database. Often each entity in the model represents a table in the database and each entity attribute represents a table column. Other information shown in the model includes primary and foreign keys and important relationships between entities.
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