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- Vectors – DuckDB 12045
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...st be taken when using them. Vector Format Vectors are arrays of a specific data type. The logical type of a vector can be obtained using duckdb_vector_get_column_type . The type id of the logical type can then be obtained using duckdb_get_type_id . Ve...ctors themselves do not have sizes. Instead, the parent data chunk has a size (that can be obtained through duckdb_data_chunk_get_size ). All vectors that belong to a data chunk have the same size. Primitive Types For pr...imitive types, the underlying array can be obtained using the duckdb_vector_get_data method. The array can then be accessed using the correct native type. Below is a table... - https://man.mtool.work/duckdb/1.3/clients/c/vector.html
- List Tables – DuckDB 12045
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...t Sitemap Live Demo Documentation / Guides / Meta Queries Copy Markdown List Tables The SHOW TABLES command can be used to obtain a list of all tables within the selected schema . CREATE TABLE tbl ( i INTEGER ); SHOW TABLES ; name tbl SHOW or SHOW ALL...TABLES can be used to obtain a list of all tables within all attached databases and schemas. CREATE TABLE tbl ( i INTEGER ); CREATE SCHEMA s1 ; CREATE...system catalog tables for compatibility with SQLite and PostgreSQL respectively. 関連キーワード schema tables command used obtain list within table column memory PostgreSQL Documentation Guides Meta Queries Copy Markdown List Tables selected attached d... - https://man.mtool.work/duckdb/1.3/guides/meta/list_tables.html
- DuckDB_% Metadata Functions – DuckDB 11513
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...WHERE clause. Table functions are still functions, and you should write parenthesis after the function name to call it to obtain its returned resultset: SELECT * FROM duckdb_settings (); Alternatively, you may execute table functions also using the CA...ppear after the decimal separator). INTEGER The information_schema.columns system view provides a more standardized way to obtain metadata about database columns, but the duckdb_columns function also returns metadata about DuckDB internal objects. (In...on_schema.referential_constraints and information_schema.table_constraints system views provide a more standardized way to obtain metadata about constraints, but the duckdb_constraints function also returns metadata about DuckDB internal objects. (In f... - https://man.mtool.work/duckdb/1.3/sql/meta/duckdb_table_functions.html
- Prepared Statements – DuckDB 10174
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...ement parameters can be inspected using duckdb_nparams and duckdb_param_type . In case the prepare fails, the error can be obtained through duckdb_prepare_error . It is not required that the duckdb_bind family of functions matches the prepared statemen...oyed using duckdb_destroy_prepare , even if the prepare fails. If the prepare fails, duckdb_prepare_error can be called to obtain the reason why the prepare failed. Syntax duckdb_state duckdb_prepare ( duckdb_connection connection , const char * query..._prepare_error ( duckdb_prepared_statement prepared_statement ); Parameters prepared_statement : The prepared statement to obtain the error from. Return Value The error message, or nullptr if there is none. duckdb_nparams Returns the number of paramete... - https://man.mtool.work/duckdb/1.3/clients/c/prepared.html
- Complete API – DuckDB 9900
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...ptions. Return Value The amount of config options available. Syntax size_t duckdb_config_count ( ); duckdb_get_config_flag Obtains a human-readable name and description of a specific configuration option. This can be used to e.g. display configuration...db_set_config Sets the specified option for the specified configuration. The configuration option is indicated by name. To obtain a list of config options, see duckdb_get_config_flag . In the source code, configuration options are defined in config.cpp...ckdb_date_struct ). Syntax duckdb_date_struct duckdb_from_date ( duckdb_date date ); Parameters date : The date object, as obtained from a DUCKDB_TYPE_DATE column. Return Value The duckdb_date_struct with the decomposed elements. duckdb_to_date Re-comp... - https://man.mtool.work/duckdb/1.3/clients/c/api.html
- Appender – DuckDB 9093
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...nvalidated, and this function returns DuckDBError. It is not possible to append more values. Call duckdb_appender_error to obtain the error message followed by duckdb_appender_destroy to destroy the invalidated appender. Syntax duckdb_state duckdb_appe...ion or any other error, then all data is invalidated, and this function returns DuckDBError. Call duckdb_appender_error to obtain the error message followed by duckdb_appender_destroy to destroy the invalidated appender. Syntax duckdb_state duckdb_appe...is invalidated, and this function returns DuckDBError. Due to the destruction of the appender, it is no longer possible to obtain the specific error message with duckdb_appender_error. Therefore, call duckdb_appender_close before destroying the appende... - https://man.mtool.work/duckdb/1.3/clients/c/appender.html
- Go Client – DuckDB 7755
- This page is for DuckDB 1.3, which is outdated. Switch to the current documentation . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Ove
...ub.com/marcboeker/go-duckdb/v2" ) Appender The DuckDB Go client supports the DuckDB Appender API for bulk inserts. You can obtain a new Appender by supplying a DuckDB connection to NewAppenderFromConn() . For example: connector , err := duckdb . NewCon... - https://man.mtool.work/duckdb/1.3/clients/go.html
- Querying Parquet Metadata – DuckDB 7755
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...the different columns. This can be useful for figuring out what kind of skipping is possible in Parquet files, or even to obtain a quick overview of what the different columns contain: SELECT * FROM parquet_metadata ( 'test.parquet' ); Below is a tabl... - https://man.mtool.work/duckdb/1.3/data/parquet/metadata.html
- DuckDB Environment – DuckDB 7755
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...) function : SELECT * FROM duckdb_extensions (); Meta Table Functions DuckDB has the following built-in table functions to obtain metadata about available catalog objects: duckdb_columns() : columns duckdb_constraints() : constraints duckdb_databases()... - https://man.mtool.work/duckdb/1.3/guides/meta/duckdb_environment.html
- Configuration – DuckDB 7481
- This page is for DuckDB 1.3, which is outdated. Switch to the current version . Search Shortcut cmd + k | ctrl + k Installation Documentation Getting Started Connect Overview Concurrency Data Import Overview Data Sources CSV Files Overview
...ptions. Return Value The amount of config options available. Syntax size_t duckdb_config_count ( ); duckdb_get_config_flag Obtains a human-readable name and description of a specific configuration option. This can be used to e.g. display configuration...db_set_config Sets the specified option for the specified configuration. The configuration option is indicated by name. To obtain a list of config options, see duckdb_get_config_flag . In the source code, configuration options are defined in config.cpp... - https://man.mtool.work/duckdb/1.3/clients/c/config.html
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