So, what is a relationship exactly? A relationship is a bi-directional link between two objects. Without relationships, you could create as many standalone custom objects you would like to, but you would not have a way to link them to each other. By creating links between records, you can expose data about other related records on the page layout of a particular record.
While creating relationships between objects, you have to think in advance on how those objects will relate to each other. Therefore, there are three main relationship types:
- One-to-one relationship: This is a direct relation with another object's record and there can only be one at all times. For example, a husband will have only one wife at any given point in time. Historically, he could have been married multiple times, but at any given time, he only has one current wife.
- One-to-many...
