Obtenir ou créer une table
Restez organisé à l'aide des collections
Enregistrez et classez les contenus selon vos préférences.
Obtenir les détails de la table si elle existe, ou créer automatiquement une table si elle n'existe pas.
Exemple de code
Sauf indication contraire, le contenu de cette page est régi par une licence Creative Commons Attribution 4.0, et les échantillons de code sont régis par une licence Apache 2.0. Pour en savoir plus, consultez les Règles du site Google Developers. Java est une marque déposée d'Oracle et/ou de ses sociétés affiliées.
[[["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 content demonstrates how to retrieve table details from Bigtable if the table exists.\u003c/p\u003e\n"],["\u003cp\u003eIt outlines the process of automatically creating a table in Bigtable if it does not already exist.\u003c/p\u003e\n"],["\u003cp\u003eThe content includes code examples in C++ that showcase the table retrieval and creation process using the Bigtable client library.\u003c/p\u003e\n"],["\u003cp\u003eThe code provided can be used to authenticate to Bigtable.\u003c/p\u003e\n"],["\u003cp\u003eIt also mentions the use of the Google Cloud sample browser to search for additional code examples.\u003c/p\u003e\n"]]],[],null,["Get table details if it exists, or autocreate a table if it does not exist.\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 namespace cbta = ::google::cloud::bigtable_admin;\n using ::google::cloud::StatusOr;\n [](cbta::BigtableTableAdminClient admin, std::string const& project_id,\n std::string const& instance_id, std::string const& table_id) {\n std::string instance_name = cbt::InstanceName(project_id, instance_id);\n std::string table_name = cbt::TableName(project_id, instance_id, table_id);\n\n google::bigtable::admin::v2::GetTableRequest r;\n r.set_name(table_name);\n r.set_view(google::bigtable::admin::v2::Table::FULL);\n\n StatusOr\u003cgoogle::bigtable::admin::v2::Table\u003e table = admin.GetTable(r);\n if (!table &&\n table.status().code() == google::cloud::StatusCode::kNotFound) {\n // The table does not exist, try to create the table.\n table = admin.CreateTable(instance_name, table_id, {});\n if (!table) throw std::move(table).status();\n // The schema returned by a `CreateTable()` request does not include all\n // the metadata for a table, we need to explicitly request the rest:\n table = admin.GetTable(std::move(r));\n }\n if (!table) throw std::move(table).status();\n std::cout \u003c\u003c \"Table metadata: \" \u003c\u003c table-\u003eDebugString() \u003c\u003c \"\\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)."]]