Entity relationship diagram and table definition

Entity–relationship model - Wikipedia

entity relationship diagram and table definition

An entity-relationship diagram (ERD) is a data modeling technique that graphically database, with each row of the table representing an instance of that entity. A database schema is usually a relational model/diagram. it shows the link between tables: primary keys and foreign keys. In database diagram the relation . An entity–relationship model (ER model for short) describes interrelated things of interest in a An entity–relationship model is usually the result of systematic analysis to define and In a simple relational database implementation, each row of a table represents one instance of an entity type, and each field in a table.

entity relationship diagram and table definition

Не ожидал, что вы придете. - Да.

entity relationship diagram and table definition

- Она наклонилась к микрофону и четко произнесла: - Сьюзан Флетчер.