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Numeric Types 12886
Fixed-Width Integer Types The types TINYINT , SMALLINT , INTEGER , BIGINT and HUGEINT store whole numbers, that is, numbers without fractional components, of various ranges. Attempts to store values outside of the allowed range will result ... 0,201,779 decimal digits and storing a single such number requires 8 megabytes. Fixed-Point Decimals The data type DECIMAL(WIDTH, SCALE) (also available under the alias NUMERIC(WIDTH, SCALE) ) represents an exact fixed-point decimal value. When creati ... ng a value of type DECIMAL , the WIDTH and SCALE can be specified to define which size of decimal values can be held in the field. The WIDTH field determines how ... or example, the type DECIMAL(3, 2) can fit the value 1.23 , but cannot fit the value 12.3 or the value 1.234 . The default WIDTH and SCALE is DECIMAL(18, 3) , if none are specified. If only the WIDTH is specified, the SCALE defaults to 0 – for example ...
https://man.mtool.work/duckdb/2.0/sql/data_types/numeric.html
Timestamp with Time Zone Functions 11981
This section describes functions and operators for examining and manipulating TIMESTAMP WITH TIME ZONE (or TIMESTAMPTZ ) values . See also the related TIMESTAMP functions . Time zone support is provided by the built-in ICU extension . In th ... format) Converts string to TIMESTAMP WITH TIME ZONE according to the format string if %Z is specified. time_bucket(bucket_width, timestamptz[, offset]) Truncate timestamptz to a grid of width bucket_width . The grid is anchored at 2000-01-01 00:00:00 ... +00:00[ + offset] when bucket_width is a number of months or coarser units, else 2000-01-03 00:00:00+00:00[ + offset] . Note that 2000-01-03 is a Monday. time ... _bucket(bucket_width, timestamptz[, origin]) Truncate timestamptz to a grid of width bucket_width . The grid is anchored at the origin timestam ...
https://man.mtool.work/duckdb/2.0/sql/functions/timestamptz.html
Date Functions 11882
This section describes functions and operators for examining and manipulating DATE values. Date Operators The table below shows the available mathematical operators for DATE types. Operator Description Example Result + addition of days (int ... name of the month. strftime(date, format) Converts a date to a string according to the format string . time_bucket(bucket_width, date[, offset]) Truncate date to a grid of width bucket_width . The grid is anchored at 2000-01-01[ + offset] when bucket ... _width is a number of months or coarser units, else 2000-01-03[ + offset] . Note that 2000-01-03 is a Monday. time_bucket(bucket_ ... width, date[, origin]) Truncate timestamptz to a grid of width bucket_width . The grid is anchored at the origin timestamp, which defaults to 2000-01-01 when bucket_width is a number of ...
https://man.mtool.work/duckdb/2.0/sql/functions/date.html
Timestamp Functions 10763
This section describes functions and operators for examining and manipulating TIMESTAMP values . See also the related TIMESTAMPTZ functions . Timestamp Operators The table below shows the available mathematical operators for TIMESTAMP types ... ording to the format string . Throws an error on failure. To return NULL on failure, use try_strptime . time_bucket(bucket_width, timestamp[, offset]) Truncate timestamp to a grid of width bucket_width . The grid is anchored at 2000-01-01 00:00:00[ + ... offset] when bucket_width is a number of months or coarser units, else 2000-01-03 00:00:00[ + offset] . Note that 2000-01-03 is a Monday. time_bucke ... t(bucket_width, timestamp[, origin]) Truncate timestamp to a grid of width bucket_width . The grid is anchored at the origin timestamp, w ...
https://man.mtool.work/duckdb/2.0/sql/functions/timestamp.html
Types 9200
DuckDB is a strongly typed database system. As such, every column has a single type specified. This type is constant over the entire column. That is to say, a column that is labeled as an INTEGER column will only contain INTEGER values. Duc ... nt duckdb_double_to_hugeint ( double val ); Decimal Helpers duckdb_decimal duckdb_double_to_decimal ( double val , uint8_t width , uint8_t scale ); double duckdb_decimal_to_double ( duckdb_decimal val ); Logical Type Interface duckdb_logical_type duck ... te_enum_type ( const char ** member_names , idx_t member_count ); duckdb_logical_type duckdb_create_decimal_type ( uint8_t width , uint8_t scale ); duckdb_type duckdb_get_type_id ( duckdb_logical_type type ); uint8_t duckdb_decimal_width ( duckdb_logi ... al Converts a double value to a duckdb_decimal object. If the conversion fails because the double value is too big, or the width/scale are invalid the result will be 0. Syntax duckdb_decimal duckdb_double_to_decimal ( double val , uint8_t width , uint ...
https://man.mtool.work/duckdb/2.0/clients/c/types.html
Functions 8969
Function Syntax Function Chaining via the Dot Operator DuckDB supports the dot syntax for function chaining. This allows the function call fn(arg1, arg2, arg3, ...) to be rewritten as arg1.fn(arg2, arg3, ...) . For example, take the followi ... tion_name; function_name function_type return_type parameters parameter_types description bar scalar VARCHAR [x, min, max, width] [DOUBLE, DOUBLE, DOUBLE, DOUBLE] Draws a band whose width is proportional to (x - min) and equal to width characters when ... x = max. width defaults to 80 base64 scalar VARCHAR [blob] [BLOB] Convert a blob to a base64 encoded string bin scalar VARCHAR [value] [V ...
https://man.mtool.work/duckdb/2.0/sql/functions/overview.html
Dot Commands 8196
Dot commands are available in the DuckDB CLI client. To use one of these commands, begin the line with a period ( . ) immediately followed by the name of the command you wish to execute. Additional arguments to the command are entered, spac ... ual section .maxbytes ⟨COUNT⟩ Sets the maximum number of bytes of rows for display ( 0 = all). Only for agent mode .maxcellwidth ⟨COUNT⟩ Sets the maximum number of characters per cell ( 0 = all). Only for agent mode .maxrows ⟨COUNT⟩ Sets the maximum n ... umber of rows for display (default: 40 , -1 = all). For duckbox mode and agent mode .maxwidth ⟨COUNT⟩ Sets the maximum width in characters. 0 defaults to terminal width. Only for duckbox mode .mode ⟨MODE⟩ ⟨TABLE⟩ Set ... ph of the previous query and open it in a web browser. Equivalent to EXPLAIN ANALYZE (FORMAT WEB) . Disabled in safe mode .width ⟨NUM1⟩ ⟨NUM2⟩ ... Set minimum column widths for columnar output Using the .help Command The .help text may be filtered by ...
https://man.mtool.work/duckdb/2.0/clients/cli/dot_commands.html
R Client 8196
Installation To use the DuckDB R client, visit the R installation page . The latest stable version of the DuckDB R client is 2.0.0. Installation duckdb : R Client The DuckDB R client can be installed using the following command: install.pac ... eTable(con, "iris_table", iris) res <- dbGetQuery(con, "SELECT * FROM iris_table LIMIT 1") print(res) # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa It is also possible to “register” a R data frame as a virtual ... register(con, "iris_view", iris) res <- dbGetQuery(con, "SELECT * FROM iris_view LIMIT 1") print(res) # Sepal.Length Sepal.Width Petal.Length Petal.Width Species # 1 5.1 3.5 1.4 0.2 setosa DuckDB keeps a reference to the R data frame after registratio ...
https://man.mtool.work/duckdb/2.0/clients/r.html
Types API 8015
The DuckDBPyType class, duckdb.sqltypes.DuckDBPyType , represents one of the data types . Use DuckDBPyType to describe SQL types when declaring function parameters, return types or casts. Python types such as int are accepted too: int descr ... y dict or list gives an empty STRUCT . map_type Parameters: key: DuckDBPyType value: DuckDBPyType decimal_type Parameters: width: int scale: int A DECIMAL has a width of 1 to 38 and a scale of 0 to the width. union_type Parameters: members: Union[list ...
https://man.mtool.work/duckdb/2.0/clients/python/types.html
Text Functions 7965
Text Functions and Operators This section describes functions and operators for examining and manipulating STRING values . Function Description string[index] Extracts a single character using a (1-based) index . string[begin:end] Extracts a ... string) Returns an integer that represents the Unicode code point of the first character of the string . bar(x, min, max[, width]) Draws a band whose width is proportional to ( x - min ) and equal to width characters when x = max . width defaults to 8 ... he Unicode code point of the first character of the string . | | Example | ascii('Ω') | | Result | 937 | bar(x, min, max[, width]) | Description | Draws a band whose width is proportional to ( x - min ) and equal to width characters when x = max . wid ...
https://man.mtool.work/duckdb/2.0/sql/functions/text.html
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