entity - Difference between entities and relations in databases -


i want know if entity table in database modelling context? , difference between entity , relation? know relation base concept of relational databases , has tabular presentation. entity , relation same thing? note: not confuse relation relshionship.

an entity somting object, can put name entity. relation "link" beetwen entity, can put verb entity, in mcd of databases. exemple :

in mcd dog end entity end part of relation

+-------+                +-----+ |dog    |                |race | |-------|                |-----| |name   |---(part of)----|name | |age    |                +-----+ +-------+

in mpd mcd become :

+--------+                         +---------+ |tdog    |                         |trace    | |--------|                         |---------| |id_tdog |                      +--|id_trace | |namedog |  +--(trace_to_tdog)--|  |namerace | |agedog  |  |                      +---------+ |fk_trace|<-+ +--------+

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