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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-22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++ API, specifically covering versions from 2.20.0 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 the Cloud Spanner mutation API, enabling users to describe data modifications using a data structure, which differs from using SQL statements.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation details various constructors and operators for the \u003ccode\u003eMutation\u003c/code\u003e class, including move and copy constructors/assignment operators, and notes that empty mutations created with the default constructor are not usable with the Cloud Spanner API.\u003c/p\u003e\n"],["\u003cp\u003eIt also includes functions \u003ccode\u003eas_proto()\u003c/code\u003e, which allows conversion of a mutation object into its underlying protocol buffer representation, for both rvalue reference and constant lvalue reference.\u003c/p\u003e\n"],["\u003cp\u003eThe Mutation API is an alternative to Data Manipulation Language (DML) based APIs for data modification, as indicated by a link to more information about the API.\u003c/p\u003e\n"]]],[],null,[]]
