Weak entity relationship should have just 1 – N Cardinality with its owner entity .it should prevent from other cardinality such as M-N AND…(References to fig.2-1 & fig.2-2)
Fig.2-1
Fig.2-2
Additional Information
Fig.2-1: References to Database Management System Book,Ramakrishnan
Fig.2-2: screenshot of BigER : weak relationship Cardinality Constraint Does not Consider
Description
Weak entity relationship should have just 1 – N Cardinality with its owner entity .it should prevent from other cardinality such as M-N AND…(References to fig.2-1 & fig.2-2)
Additional Information
Fig.2-1: References to Database Management System Book,Ramakrishnan Fig.2-2: screenshot of BigER : weak relationship Cardinality Constraint Does not Consider