Entity-relationships diagrams is a helpful unit to have creating databases. It reveal the fresh new organizations involved, the qualities, additionally the dating between the two. You will want to explain these types of issues to correctly comprehend the construction of database prior to building they.
A strategy usually regularly manage an organization-relationships drawing are crow's foot notation. Put throughout the seventies, the unique arrows found in crow's foot notation have also named upside-down arrows, poultry foot, or forks. (Celý příspěvek...)
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