The capability to define and manage relationships between data entities is the basis for much of the value of relational databases. Relationships allow data from one entity to be logically separated from others. With this separation, data can be modified without integrity loss and combined with other entities for analysis.
Data relationships in Force.com resemble those found in standard relational databases. You can express one-to-one, one-to-many, and many-to-many relationships. But relationships in Force.com are closely controlled and managed by the platform and also integrated with many platform features. Some important points are listed in the subsections that follow.
When you define a relationship in Force.com, ...
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