Comprueba si existe una tabla
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Comprueba si existe una tabla
Muestra de código
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[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Difícil de entender","hardToUnderstand","thumb-down"],["Información o código de muestra incorrectos","incorrectInformationOrSampleCode","thumb-down"],["Faltan la información o los ejemplos que necesito","missingTheInformationSamplesINeed","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Otro","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis content demonstrates how to check if a specific Bigtable table exists using C++ code.\u003c/p\u003e\n"],["\u003cp\u003eThe code utilizes the \u003ccode\u003eBigtableTableAdminClient\u003c/code\u003e to interact with the Bigtable service.\u003c/p\u003e\n"],["\u003cp\u003eThe code sample checks for table existence by attempting to retrieve table details, using the table name, and \u003ccode\u003eNAME_ONLY\u003c/code\u003e as the view parameter.\u003c/p\u003e\n"],["\u003cp\u003eIt returns whether a given table exists or not, by analyzing the response of the call made by \u003ccode\u003eadmin.GetTable\u003c/code\u003e, and the \u003ccode\u003ekNotFound\u003c/code\u003e status code.\u003c/p\u003e\n"],["\u003cp\u003eThe instructions for installing and using Bigtable client libraries, as well as setting up Application Default Credentials for authentication, are provided through external links.\u003c/p\u003e\n"]]],[],null,["# Check if a table exists.\n\nCode sample\n-----------\n\n### C++\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 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::NAME_ONLY);\n\n StatusOr\u003cgoogle::bigtable::admin::v2::Table\u003e table =\n admin.GetTable(std::move(r));\n if (!table) {\n if (table.status().code() == google::cloud::StatusCode::kNotFound) {\n std::cout \u003c\u003c \"Table \" \u003c\u003c table_id \u003c\u003c \" does not exist\\n\";\n return;\n }\n throw std::move(table).status();\n }\n\n std::cout \u003c\u003c \"Table \" \u003c\u003c table_id \u003c\u003c \" was found\\n\";\n }\n\nWhat's next\n-----------\n\n\nTo search and filter code samples for other Google Cloud products, see the\n[Google Cloud sample browser](/docs/samples?product=bigtable)."]]