Supprimer des colonnes avec la mutation
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Supprimer des colonnes dans une ligne à l'aide de la mutation.
Exemple de code
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[[["Facile à comprendre","easyToUnderstand","thumb-up"],["J'ai pu résoudre mon problème","solvedMyProblem","thumb-up"],["Autre","otherUp","thumb-up"]],[["Difficile à comprendre","hardToUnderstand","thumb-down"],["Informations ou exemple de code incorrects","incorrectInformationOrSampleCode","thumb-down"],["Il n'y a pas l'information/les exemples dont j'ai besoin","missingTheInformationSamplesINeed","thumb-down"],["Problème de traduction","translationIssue","thumb-down"],["Autre","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis code snippet demonstrates how to delete specific columns within a row in Bigtable using the \u003ccode\u003emutate\u003c/code\u003e function in C++.\u003c/p\u003e\n"],["\u003cp\u003eAuthentication to Bigtable requires setting up Application Default Credentials for a local development environment.\u003c/p\u003e\n"],["\u003cp\u003eThe provided example utilizes the Bigtable client library and the \u003ccode\u003eSingleRowMutation\u003c/code\u003e class to construct the delete operations for specified columns.\u003c/p\u003e\n"],["\u003cp\u003eThe Google Cloud sample browser is a resource for finding code samples for other Google Cloud products, including Bigtable.\u003c/p\u003e\n"]]],[],null,["Delete columns within a row using mutate.\n\nCode sample \n\nC++\n\n\nTo learn how to install and use the client library for Bigtable, see\n[Bigtable client libraries](/bigtable/docs/reference/libraries).\n\n\nTo authenticate to Bigtable, set up Application Default Credentials.\nFor more information, see\n\n[Set up authentication for a local development environment](/docs/authentication/set-up-adc-local-dev-environment).\n\n namespace cbt = ::google::cloud::bigtable;\n [](cbt::Table table, std::string const& key,\n std::vector\u003cstd::pair\u003cstd::string, std::string\u003e\u003e const& columns) {\n cbt::SingleRowMutation mutation(key);\n for (auto const& c : columns) {\n mutation.emplace_back(cbt::DeleteFromColumn(c.first, c.second));\n }\n google::cloud::Status status = table.Apply(std::move(mutation));\n if (!status.ok()) throw std::runtime_error(status.message());\n std::cout \u003c\u003c \"Columns successfully deleted from row\\n\";\n }\n\nWhat's next\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=bigtable)."]]