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# CKNotification.NotificationType

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

```
enum NotificationType
```

## Topics

### Notification Types

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

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

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

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

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

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

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

A notification that your app marks as read.

## Relationships

### Conforms To

[`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable)

[`Sendable`](/documentation/Swift/Sendable)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

[`Equatable`](/documentation/Swift/Equatable)

[`RawRepresentable`](/documentation/Swift/RawRepresentable)

[`Hashable`](/documentation/Swift/Hashable)

---

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