Описание тега ckrecordzone

A CKRecordZone object defines an area for organizing related records in a database. Zones are an important part of how you organize your data. The public and private databases have a single default zone, and in the private database you can create additional custom zones as needed. Use custom zones to arrange and encapsulate groups of related records in the private database. Custom zones support other capabilities too, such as the ability to write multiple records as a single atomic transaction.

Treat each custom zone as a single unit of data that is separate from every other zone in the database. Inside the zone, you add records as you would anywhere else. You can also create links between the records inside a zone by using the CKReference class. However, the CKReference class does not support cross-zone linking, so each reference object must point to a record in the same zone as the current record.