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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22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 document outlines the various versions of the Cloud Spanner \u003ccode\u003eMutation\u003c/code\u003e class, with version 2.37.0-rc being the latest release candidate.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMutation\u003c/code\u003e class is a wrapper for all mutation types, used to describe data modifications in Cloud Spanner.\u003c/p\u003e\n"],["\u003cp\u003eUsers can build \u003ccode\u003eMutation\u003c/code\u003e objects using builders like \u003ccode\u003eInsertMutationBuilder\u003c/code\u003e or \u003ccode\u003eUpdateMutationBuilder\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eMutation\u003c/code\u003e class provides constructors for creating empty or copied mutations, but empty mutations cannot be used in the Cloud Spanner mutation API.\u003c/p\u003e\n"],["\u003cp\u003eThe class also allows conversion to the underlying proto using the \u003ccode\u003eas_proto()\u003c/code\u003e function, available in both rvalue and const lvalue reference versions.\u003c/p\u003e\n"]]],[],null,[]]
