Referential integrity is a mechanism for ensuring that any references to an entry are updated whenever that entry is removed or altered. Historically, referential integrity is primarily used to ensure that attributes with a DN syntax (especially group membership attributes like member and uniqueMember) are properly maintained in the event of delete and modify DN operations. For a delete operation, any references to the target entry will be removed. For modify DN operations, any references to the target entry will be renamed accordingly.
EDirectory does currently provide a referential integrity mechanism for DN attributes.!! More Information
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