One to Many Relationship Cardinality in DBMS

One-to-Many  cardinality

• When is a single instance of an entity is associated with more than one instance of another entity then this type of relationship is called one to many relationships
• Here entities in one entity set can take participation in  any number of times in relationships set and entities in another entity set can take participation only once in a relationship set

Example for one to many cardinalities

 For example in the Real world, many students can study in a single college but the student cannot apply to more than one college at the same time