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.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22 UTC."],[[["\u003cp\u003eThis webpage provides documentation for the \u003ccode\u003eMutation\u003c/code\u003e class in the Cloud Spanner C++ client library, offering version-specific details from 2.11.0 up to the latest release candidate 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMutation\u003c/code\u003e class serves as a wrapper for Cloud Spanner mutations, enabling users to describe data modifications using a data structure rather than SQL.\u003c/p\u003e\n"],["\u003cp\u003eThe Mutation API class can be built using builder classes like \u003ccode\u003eInsertMutationBuilder\u003c/code\u003e or \u003ccode\u003eUpdateMutationBuilder\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation includes constructors, operators, and functions, such as \u003ccode\u003eas_proto()\u003c/code\u003e, which allows conversion to the underlying proto format.\u003c/p\u003e\n"],["\u003cp\u003eEmpty mutations created by the \u003ccode\u003eMutation()\u003c/code\u003e are not usable with the Cloud Spanner mutation API.\u003c/p\u003e\n"]]],[],null,[]]
