---
title: HKQuantitySeriesSampleQuery
framework: healthkit
role: symbol
role_heading: Class
path: healthkit/hkquantityseriessamplequery
---

# HKQuantitySeriesSampleQuery

A query that accesses the series data associated with a quantity sample.

## Declaration

```swift
class HKQuantitySeriesSampleQuery
```

## Mentioned in

Accessing condensed workout samples

## Overview

Overview Use a series query to access the individual HKQuantity objects added to a sample using an HKQuantitySeriesSampleBuilder. important: For many common calculations, consider using a statistical query instead. Statistical queries correctly handle quantity data, whether the samples represent a single quantity or a series.

## Topics

### Creating a Series Query

- [init(quantityType:predicate:quantityHandler:)](healthkit/hkquantityseriessamplequery/init(quantitytype:predicate:quantityhandler:).md)
- [includeSample](healthkit/hkquantityseriessamplequery/includesample.md)
- [orderByQuantitySampleStartDate](healthkit/hkquantityseriessamplequery/orderbyquantitysamplestartdate.md)

### Deprecated Mehtods

- [init(sample:quantityHandler:)](healthkit/hkquantityseriessamplequery/init(sample:quantityhandler:).md)

## Relationships

### Inherits From

- [HKQuery](healthkit/hkquery.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Related Documentation

- [HKQuantitySeriesSampleBuilder](healthkit/hkquantityseriessamplebuilder.md)
- [HKCumulativeQuantitySample](healthkit/hkcumulativequantitysample.md)
- [HKDiscreteQuantitySample](healthkit/hkdiscretequantitysample.md)

### Series queries

- [HKQuantitySeriesSampleQueryDescriptor](healthkit/hkquantityseriessamplequerydescriptor.md)
- [HKWorkoutRouteQueryDescriptor](healthkit/hkworkoutroutequerydescriptor.md)
- [HKWorkoutRouteQuery](healthkit/hkworkoutroutequery.md)
- [HKHeartbeatSeriesQueryDescriptor](healthkit/hkheartbeatseriesquerydescriptor.md)
- [HKHeartbeatSeriesQuery](healthkit/hkheartbeatseriesquery.md)
- [HKElectrocardiogramQueryDescriptor](healthkit/hkelectrocardiogramquerydescriptor.md)
- [HKElectrocardiogramQuery](healthkit/hkelectrocardiogramquery.md)
- [HKWorkoutEffortRelationship](healthkit/hkworkouteffortrelationship.md)
- [HKWorkoutEffortRelationshipQuery](healthkit/hkworkouteffortrelationshipquery.md)