DeZign for Databases can generate the SQL to create the database or it can generate the database directly.ĭeZign for Databases can connect to data sources (Oracle, MS SQL Server, PostgreSQL, MySQL, SQLite, MS Access.
When you are ready with the data model, DeZign for Databases generates the database you designed. You draw entities (tables), add attributes (columns) and create relationships between those entities. You can design or model your database visually before you write a single line of database code. It "converts" the diagram into database commands and DDL (forward engineering). The tool can generate SQL scripts (DDL) or a database from the content of a data model (ERD). After importing the structure of an existing database you can modify/redesign your model and regenerate or synchronize it with your database. With DeZign for Databases you can draw new ERD's or reverse engineer existing databases and derive an Entity Relationship Diagram from that database. Relationships describe the relations between the entities.Attributes are the data we want to collect for an entitiy.An entity is a person, place, thing or event. Entities are the "things" for which we want to store information.There are three basic elements in ER-Diagrams: For a good database design it is essential to have an Entity Relationship Diagram.
An Entity Relationship Diagram shows entities (tables) in a database and relationships between tables within that database. An Entity Relationship Diagram (ERD) is a snapshot of data structures.
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