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Leave a feedback >Public Member Functions | |
| void | ExecuteSchemeQuery (const std::string &query) |
| Query for creating/deleting tables. | |
| void | MakeDirectory (const std::string &path, MakeDirectorySettings query_settings={}) |
| void | RemoveDirectory (const std::string &path, RemoveDirectorySettings query_settings={}) |
| NYdb::NScheme::TDescribePathResult | DescribePath (std::string_view path, DescribePathSettings query_settings={}) |
| NYdb::NScheme::TListDirectoryResult | ListDirectory (std::string_view path, ListDirectorySettings query_settings={}) |
| NYdb::NTable::TDescribeTableResult | DescribeTable (std::string_view path, DescribeTableSettings query_settings={}) |
| void | CreateTable (std::string_view path, NYdb::NTable::TTableDescription &&table_desc, CreateTableSettings query_settings={}) |
| void | DropTable (std::string_view path, DropTableSettings query_settings={}) |
| PreparedArgsBuilder | GetBuilder () const |
| Builder for storing dynamic query params. | |
| void | BulkUpsert (std::string_view table, NYdb::TValue &&rows, OperationSettings settings={}, BulkUpsertSettings query_settings={}) |
| Efficiently write large ranges of table data. | |
| template<typename RangeOfStructs> | |
| void | BulkUpsert (std::string_view table, const RangeOfStructs &rows, OperationSettings settings={}) |
| ReadTableResults | ReadTable (std::string_view table, NYdb::NTable::TReadTableSettings &&read_settings={}, OperationSettings settings={}) |
| Efficiently read large ranges of table data. | |
| utils::RetryBudget & | GetRetryBudget () |
Data queries execution | |
Execute a single data query outside of transactions. Query parameters are passed in client.ExecuteDataQuery(query, "name1", value1, "name2", value2, ...);
Use ydb::PreparedArgsBuilder for storing a generic buffer of query params if needed. It is convinient to keep YQL queries in separate files, see Embedding SQL/YQL files via userver_add_sql_library for more info. | |
| template<typename... Args> | |
| ExecuteResponse | ExecuteDataQuery (const Query &query, Args &&... args) |
| template<typename... Args> | |
| ExecuteResponse | ExecuteDataQuery (OperationSettings settings, const Query &query, Args &&... args) |
| ExecuteResponse | ExecuteDataQuery (OperationSettings settings, const Query &query, PreparedArgsBuilder &&builder) |
| ExecuteResponse | ExecuteDataQuery (QuerySettings query_settings, OperationSettings settings, const Query &query, PreparedArgsBuilder &&builder) |
Transactions | |
Begin a transaction with the specified name. The settings are used for the
| |
| Transaction | Begin (utils::StringLiteral transaction_name, OperationSettings settings={}) |
| Transaction | Begin (DynamicTransactionName transaction_name, OperationSettings settings={}) |
| Transaction | Begin (utils::StringLiteral transaction_name, TransactionMode tx_mode) |
Scan queries execution | |
A separate data access interface designed primarily for performing analytical ad-hoc queries. | |
| template<typename... Args> | |
| ScanQueryResults | ExecuteScanQuery (const Query &query, Args &&... args) |
| template<typename... Args> | |
| ScanQueryResults | ExecuteScanQuery (ScanQuerySettings &&scan_settings, OperationSettings settings, const Query &query, Args &&... args) |
| ScanQueryResults | ExecuteScanQuery (ScanQuerySettings &&scan_settings, OperationSettings settings, const Query &query, PreparedArgsBuilder &&builder) |
Queries execution (using YDB Query SDK) | |
Execute a single query outside of transactions. Query parameters are passed in client.ExecuteQuery(query, "name1", value1, "name2", value2, ...);
Use ydb::PreparedArgsBuilder for storing a generic buffer of query params if needed. If both exec_settings and settings args are passed, exec_settings.client_timeout_ms and exec_settings.trace_id are ignored and are overwritten by settings.client_timeout_ms and settings.trace_id. | |
| template<typename... Args> | |
| ExecuteResponse | ExecuteQuery (const Query &query, Args &&... args) |
| template<typename... Args> | |
| ExecuteResponse | ExecuteQuery (OperationSettings settings, const Query &query, Args &&... args) |
| ExecuteResponse | ExecuteQuery (OperationSettings settings, const Query &query, PreparedArgsBuilder &&builder) |
| ExecuteResponse | ExecuteQuery (NYdb::NQuery::TExecuteQuerySettings &&exec_settings, OperationSettings settings, const Query &query, PreparedArgsBuilder &&builder) |
| NYdb::NTable::TTableClient & | GetNativeTableClient () |
| NYdb::NQuery::TQueryClient & | GetNativeQueryClient () |
| Transaction ydb::TableClient::Begin | ( | DynamicTransactionName | transaction_name, |
| OperationSettings | settings = {} ) |
transaction_name has low cardinality. If transaction_name is unique for every call, per-transaction metrics will overflow metrics quota, and metrics will become unusable. | void ydb::TableClient::BulkUpsert | ( | std::string_view | table, |
| const RangeOfStructs & | rows, | ||
| OperationSettings | settings = {} ) |
| ExecuteResponse ydb::TableClient::ExecuteDataQuery | ( | const Query & | query, |
| Args &&... | args ) |
| ExecuteResponse ydb::TableClient::ExecuteDataQuery | ( | OperationSettings | settings, |
| const Query & | query, | ||
| Args &&... | args ) |
| ExecuteResponse ydb::TableClient::ExecuteQuery | ( | const Query & | query, |
| Args &&... | args ) |
| ExecuteResponse ydb::TableClient::ExecuteQuery | ( | OperationSettings | settings, |
| const Query & | query, | ||
| Args &&... | args ) |
| ScanQueryResults ydb::TableClient::ExecuteScanQuery | ( | const Query & | query, |
| Args &&... | args ) |
| ScanQueryResults ydb::TableClient::ExecuteScanQuery | ( | ScanQuerySettings && | scan_settings, |
| OperationSettings | settings, | ||
| const Query & | query, | ||
| Args &&... | args ) |
| NYdb::NTable::TTableClient & ydb::TableClient::GetNativeTableClient | ( | ) |
Get native table or query client
<core/include/userver/drivers/subscribable_futures.hpp> can help with non-blocking wait operations.
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