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The
Entity Relationship Diagrammer shows the tables and their
relationships to each other systematically, following the
IDEF1X standard. ER Diagrammer can create an entity-relationship
diagram from an existing database. Optionally, for a complex
database, ER Diagrammer can generate diagrams for portions
that you select. Usually, the result will picture the tables
in a manner that clearly shows all relationships.
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