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Are master-detail required?
Master-detail field is always required on the page layout of the detail record (because of the point above). Standard object record can be on the detail side of a custom object in a lookup relationship. Standard object record cannot be a child.
What is difference between master-detail and lookup relationship in Salesforce?
The Salesforce lookup relationship has no relation with other records. It does not depend on any other objects, whereas a master-detail relationship has an association with other records. On the other hand, the lookup relationship is just a reference. It can be even blank or NULL.
Can we change lookup to master-detail?
To convert lookup to the master-detail relationship you need to give parent records on all child records. Then only you can convert a lookup relationship to a master-detail relationship if the lookup field in all the records contains a value.
What is lookup and master-detail?
While lookup relationships are fairly casual, master-detail relationships are a bit tighter. In this type of relationship, one object is the master and another is the detail. The master object controls certain behaviors of the detail object, like who can view the detail’s data.
How is the junction different from the lookup?
First of all, the junction is different from the lookup and master-detail. Because lookup and master-detail are kinds of relationship but the junction is the object.
Is it possible to look up a detail object?
->Self Lookup Is Possible. A parent-child relationship in which the master object controls certain behaviors of the detail object. ->When a record of the master object is deleted, its related detail records are also deleted. ->Self Lookup Is Not Possible.
What’s the difference between lookup and master detail?
Deleting parent automatically deletes child. A child of one master detail relationship cannot be the parent of another. Lookup field on page layout is required. other difference is, you can’t create a rollup summary field on Lookup Relationship. it is only available on Master-Detail relationship.
When does the master object control the detail object?
A parent-child relationship in which the master object controls certain behaviors of the detail object. ->When a record of the master object is deleted, its related detail records are also deleted. ->Self Lookup Is Not Possible.