A relationship is defined as " An Association among singles " . A relationship may associate a single itself. Several relationships may exist between the same item.
TYPE OF RELATIONSHIPS
1. ONE - to - ONE
A data can be associate with only with another data it is called One - to -One relationship
method .
Like - Every Student's Roll Number can be associated only with student.
2. MANY - to - ONE
A data can be associate with multiple datas it is called Many - to - one relationship
method.
3. MANY - to - MANY
Multiple datas can be associate with multiple datas it is called Many - to - Many
relationship method .
