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# CKNotification.NotificationType

Constants that indicate the type of event that generates the push notification.

```
enum NotificationType
```

## Topics

### Notification Types

[`CKNotification.NotificationType.query`](/documentation/CloudKit/CKNotification/NotificationType-swift.enum/query)

A notification that CloudKit generates from a query subscription’s predicate.

[`CKNotification.NotificationType.database`](/documentation/CloudKit/CKNotification/NotificationType-swift.enum/database)

A notification that CloudKit generates when the contents of a database change.

[`CKNotification.NotificationType.recordZone`](/documentation/CloudKit/CKNotification/NotificationType-swift.enum/recordZone)

A notification that CloudKit generates when the contents of a record zone change.

[`CKNotification.NotificationType.readNotification`](/documentation/CloudKit/CKNotification/NotificationType-swift.enum/readNotification)

A notification that your app marks as read.


---

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