# Class Mutation (3.7.0-rc)

3.7.0-rc 3.6.0 (latest) 3.5.0 3.4.0 3.3.0 3.2.0 2.48.0-rc 2.47.1 2.46.0 2.45.0 2.44.0 2.43.0 2.42.0 2.41.0 2.40.0 2.39.0 2.38.0 2.37.0 2.36.0 2.35.0 2.34.0 2.33.0 2.32.0 2.31.0 2.30.0 2.29.0 2.28.0 2.27.0 2.26.0 2.25.1 2.24.0 2.23.0 2.22.1 2.21.0 2.20.0 2.19.0 2.18.0 2.17.0 2.16.0 2.15.1 2.14.0 2.13.0 2.12.0 2.11.0 A wrapper for Cloud Spanner mutations.
In addition to the Data Manipulation Language (DML) based APIs, Cloud Spanner supports the mutation API, where the application describes data modification using a data structure instead of a SQL statement.

This class serves as a wrapper for all mutations types. Use the builders, such as `InsertMutationBuilder` or `UpdateMutationBuilder` to create objects of this class.

###### See Also

<https://cloud.google.com/spanner/docs/modify-mutation-api> for more information about the Cloud Spanner mutation API.

## Constructors

### Mutation()

Creates an empty mutation.

> [!NOTE]
> **Note:** Empty mutations are not usable with the Cloud Spanner mutation API.

### Mutation(Mutation \&\&)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
|   | `Mutation &&` |

### Mutation(Mutation const \&)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
|   | `Mutation const &` |

## Operators

### operator=(Mutation \&\&)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
|   | `Mutation &&` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `Mutation &` |   |

### operator=(Mutation const \&)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
|   | `Mutation const &` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `Mutation &` |   |

## Functions

### as_proto() \&\&

Convert the mutation to the underlying proto.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `google::spanner::v1::Mutation` |   |

### as_proto() const \&

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `google::spanner::v1::Mutation` |   |