We can build three
types of relationships between entities.
- One-to-many
- Many-to-One
- Many-to-many
I would like explain
these relationships with an example. Assume there are two entities called A and
B. As per the requirement A record can contains more than one B records, that
means we need to create a one-to-many relationship between A and B, once you
create the relationship, one A entity related lookup field will be created
automatically in B entity. So, for each record you are creating in B entity you
will selecting the respective A entity related record. One each record of A
entity, you can see all the associated records of entity B in associated view.
Many-to-one is same
as One-to-many if we are following above process from B to A.
The records for a
many-to-many relationships are stored in an intersect entity which contains the
ID of both the referenced and referencing records. In Many to many
relationships we need to establish a link between records by associate or disassociate.
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