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Lookup Vs Master Detail relationship


1.No, you cannot have a rollup summary field that uses a Lookup relationship. it must be on the parent of the master/detail relationship.

Lookup Relationships:


1. Loosely coupled
2. Child field value may be optional
3. No cascade delete
4. Independent ownership & sharing
5. Maximum 25 lookup relationships per child


Master/Detail Relationships:


1.Tightly coupled
2.Child field value is always required
3.Cascade delete
4.Inherited ownership & sharing
5.Maximum 2 master relationships per detail object
6.Can be multiple levels deep
7.If master is a standard object: 2 additional subdetails
8.If master is a custom object:  3 additional subdetails





Comments

  1. A Master/Detail Relationship can not be multilevel deep. It is just one level deep relation however we can have it on lookup relation

    ReplyDelete

  2. I think it is not "Child Field value...". It should be "Parent field value on the child record...."

    ReplyDelete

  3. can any body explain me 7 and 8 points in detail

    ReplyDelete

  4. For Salesforce certification latest and updated dumps contact us at completeexamcollection@gmail.com Refer our blog http://completeexamcollection.blogspot.in/2015/04/salesforce-certification-dumps.html

    ReplyDelete

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