Results of 1 - 10 of about 57 for range (0.008 sec.)
- Relational API – DuckDB 16153
- This page is for DuckDB 1.3, which is outdated.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
...te a relation, which loads 1 billion rows: import duckdb duckdb_conn = duckdb . connect () rel = duckdb_conn . sql ( "from range(1_000_000_000)" ) At the moment of execution, rel does not hold any data and no data is retrieved from the database. By ca...o be used in the SQL query. Example import duckdb duckdb_conn = duckdb . connect () rel = duckdb_conn . from_query ( "from range(1,2) tbl(id)" ) rel . show () Result ┌───────┐ │ id │ │ int64 │ ├───────┤ │ 1 │ └───────┘ query Signature query ( self : d...ers to be used in the SQL query. Example import duckdb duckdb_conn = duckdb . connect () rel = duckdb_conn . query ( "from range(1,2) tbl(id)" ) rel . show () Result ┌───────┐ │ id │ │ int64 │ ├───────┤ │ 1 │ └───────┘ read_csv Signature read_csv ( se... - https://man.mtool.work/duckdb/1.3/clients/python/relational_api.html
- Excel Import – DuckDB 10500
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...est_excel.xlsx' , sheet = 'Sheet1' ); By default, the first sheet is loaded if no sheet is specified. Importing a Specific Range To select a specific range of cells, use the range parameter with a string in the format A1:B2 , where A1 is the top-left...cell and B2 is the bottom-right cell: SELECT * FROM read_xlsx ( 'test_excel.xlsx' , range = 'A1:B2' ); This can also be used to, e.g., skip the first 5 of rows: SELECT * FROM read_xlsx ( 'test_excel.xlsx' , range...= 'A5:Z' ); Or skip the first 5 columns SELECT * FROM read_xlsx ( 'test_excel.xlsx' , range = 'E:Z' ); If no range parameter is provided, the range is automatically inferred as the rectangular region of cells betwe... - https://man.mtool.work/duckdb/1.3/guides/file_formats/excel_import.html
- Enum Functions – DuckDB 9648
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...y' , 'anxious' ); These functions can take NULL or a specific value of the type as argument(s). With the exception of enum_range_boundary , the result depends only on the type of the argument and not on its value. Name Description enum_code(enum_value...(enum) Returns the first value of the input enum type. enum_last(enum) Returns the last value of the input enum type. enum_range(enum) Returns all values of the input enum type as an array. enum_range_boundary(enum, enum) Returns the range between the...um_last(enum) Description Returns the last value of the input enum type. Example enum_last(NULL::mood) Result anxious enum_range(enum) Description Returns all values of the input enum type as an array. Example enum_range(NULL::mood) Result [sad, ok, h... - https://man.mtool.work/duckdb/1.3/sql/functions/enum.html
- List Functions – DuckDB 9207
- 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
...] [4, 6] Under the hood, [f(x) FOR x IN y IF g(x)] is translated to list_transform(list_filter(y, x -> f(x)), x -> f(x)) . Range Functions DuckDB offers two range functions, range(start, stop, step) and generate_series(start, stop, step) , and their v...ents for stop and step . The two functions' behavior is different regarding their stop argument. This is documented below. range The range function creates a list of values in the range between start and stop . The start parameter is inclusive, while...efault value of start is 0 and the default value of step is 1. Based on the number of arguments, the following variants of range exist. range(stop) SELECT range ( 5 ); [0, 1, 2, 3, 4] range(start, stop) SELECT range ( 2 , 5 ); [2, 3, 4] range(start, s... - https://man.mtool.work/duckdb/1.3/sql/functions/list.html
- Excel Extension – DuckDB 9104
- 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
...ther to ignore errors and silently replace cells that cant be cast to the corresponding inferred column type with NULL 's. range VARCHAR automatically inferred The range of cells to read, in spreadsheet notation. For example, A1:B2 reads the cells fro...m A1 to B2. If not specified the resulting range will be inferred as rectangular region of cells between the first row of consecutive non-empty cells and the first empty r..._at_empty BOOLEAN automatically inferred Whether to stop reading the file when an empty row is encountered. If an explicit range option is provided, this is false by default, otherwise true . empty_as_varchar BOOLEAN false Whether to treat empty cells... - https://man.mtool.work/duckdb/1.3/core_extensions/excel.html
- Set Operations – DuckDB 8914
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...mantics, therefore it performs duplicate elimination, i.e., only unique rows will be included in the result. SELECT * FROM range ( 2 ) t1 ( x ) UNION SELECT * FROM range ( 3 ) t2 ( x ); x 2 1 0 UNION ALL (Bag Semantics) UNION ALL returns all rows of b...oth queries following bag semantics, i.e., without duplicate elimination. SELECT * FROM range ( 2 ) t1 ( x ) UNION ALL SELECT * FROM range ( 3 ) t2 ( x ); x 0 1 0 1 2 UNION [ALL] BY NAME The UNION [ALL] BY NAME claus...NTERSECT (Set Semantics) Vanilla INTERSECT performs duplicate elimination, so only unique rows are returned. SELECT * FROM range ( 2 ) t1 ( x ) INTERSECT SELECT * FROM range ( 6 ) t2 ( x ); x 0 1 INTERSECT ALL (Bag Semantics) INTERSECT ALL follows bag... - https://man.mtool.work/duckdb/1.3/sql/query_syntax/setops.html
- Window Functions – DuckDB 8664
- 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
...ns, but we have extended all of these functions (except dense_rank ) to accept this syntax and use framing to restrict the range that the secondary ordering applies to. -- Compare each athlete's time in an event with the best time to date SELECT event...ws on either side ( preceding or following ) of the current row . The distance can be specified as a number of rows , as a range of values using the partition's ordering value and a distance, or as a number of groups (sets of rows with the same sort v...clause in the OVER specification. This distance can either be specified as an integral number of ROWS or GROUPS , or as a RANGE delta expression. It is invalid for a frame to start after it ends. For a RANGE specification, there must be only one orde... - https://man.mtool.work/duckdb/1.3/sql/functions/window_functions.html
- Numeric Types – DuckDB 8209
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..., 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 in an error. The types UTINYINT , USMALLINT , UINTEGER..., UBIGINT and UHUGEINT store whole unsigned numbers. Attempts to store negative numbers or values outside of the allowed range will result in an error. Name Aliases Min Max Size in bytes TINYINT INT1 - 2^7 2^7 - 1 1 SMALLINT INT2 , INT16 , SHORT - 2...size in bits following the C/C++ convention. The type integer is the common choice, as it offers the best balance between range, storage size, and performance. The SMALLINT type is generally only used if disk space is at a premium. The BIGINT and HUG... - https://man.mtool.work/duckdb/1.3/sql/data_types/numeric.html
- Indexes – DuckDB 8018
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...ypes. Indexes can also be defined via extensions . Min-Max Index (Zonemap) A min-max index (also known as zonemap or block range index) is automatically created for columns of all general-purpose data types . Adaptive Radix Tree (ART) An Adaptive Radi...chunk. Thus, we throw a constraint violation. CREATE TABLE my_table ( i INTEGER PRIMARY KEY ); INSERT INTO my_table SELECT range FROM range ( 3_000 ); UPDATE my_table SET i = i + 1 ; Constraint Error: Duplicate key "i: 2048" violates primary key const...t could look like in the command line client. CREATE TABLE my_table ( i INTEGER PRIMARY KEY ); INSERT INTO my_table SELECT range FROM range ( 3_000 ); BEGIN ; CREATE TEMP TABLE tmp AS SELECT i FROM my_table ; DELETE FROM my_table ; INSERT INTO my_tabl... - https://man.mtool.work/duckdb/1.3/sql/indexes.html
- FROM and JOIN Clauses – DuckDB 7915
- 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
...table_name in the schema schema_name : SELECT * FROM schema_name .table_name ; Select the column i from the table function range , where the first column of the range function is renamed to i : SELECT t.i FROM range ( 100 ) AS t ( i ); Select all colu...a table: SELECT * FROM table_name TABLESAMPLE 10 ROWS ; Use the FROM -first syntax with WHERE clause and aggregation: FROM range ( 100 ) AS t ( i ) SELECT sum ( t.i ) WHERE i % 2 = 0 ; Joins Joins are a fundamental relational operation used to connect...ubqueries in the FROM clause to refer to previous subqueries. This feature is also known as a lateral join . SELECT * FROM range ( 3 ) t ( i ), LATERAL ( SELECT i + 1 ) t2 ( j ); i j 0 1 2 3 1 2 Lateral joins are a generalization of correlated subquer... - https://man.mtool.work/duckdb/1.3/sql/query_syntax/from.html
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