Results of 1 - 10 of about 44 for Right (0.005 sec.)
- FROM and JOIN Clauses 14676
- The FROM clause specifies the source of the data on which the remainder of the query should operate. Logically, the FROM clause is where the query starts execution. The FROM clause can contain a single table, a combination of multiple table
...l relational operation used to connect two tables or relations horizontally. The relations are referred to as the left and right sides of the join based on how they are written in the join clause. Each result row has the columns from both relations. A...rned if an OUTER join is specified. Outer joins can be one of: LEFT (All rows from the left relation appear at least once) RIGHT (All rows from the right relation appear at least once) FULL (All rows from both relations appear at least once) A join th...ort_names USING (iata); Semi and Anti Joins Semi joins return rows from the left table that have at least one match in the right table. Anti joins return rows from the left table that have no matches in the right table. When using a semi or anti join... - https://man.mtool.work/duckdb/2.0/sql/query_syntax/from.html
- Text Functions 12848
- 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
...ount, character) Pads the string with the character on the left until it has count characters. Truncates the string on the right if it has more than count characters. ltrim(string[, characters]) Removes any occurrences of any of the characters from th...ring, source, target) Replaces any occurrences of the source with target in string . reverse(string) Reverses the string . right(string, count) Extract the right-most count characters. right_grapheme(string, count) Extracts the right-most count graphe...me clusters. rpad(string, count, character) Pads the string with the character on the right until it has count characters. Truncates the string on the right if it has more than count characters. rtrim(string[, char... - https://man.mtool.work/duckdb/2.0/sql/functions/text.html
- Editing 9205
- The linenoise-based CLI editor is available for macOS, Linux and Windows. DuckDB's CLI uses a line-editing library based on linenoise , which has shortcuts that are based on Emacs mode of readline . Below is a list of available commands. Yo
...u can also view these shortcuts from within the CLI using .help shortcuts . Moving Key Action Left Move back a character Right Move forward a character Up Move up a line. When on the first line, move to previous history entry Down Move down a line....move to next history entry Home Move to beginning of buffer End Move to end of buffer Ctrl + Left Move back a word Ctrl + Right Move forward a word Ctrl + A Move to beginning of line Ctrl + B Move back a character Ctrl + E Move to end of line Ctrl +...F Move forward a character Alt + Left Move back a word Alt + Right Move forward a word History Key Action Ctrl + P Move to previous history entry Ctrl + N Move to next history entry Ctrl +... - https://man.mtool.work/duckdb/2.0/clients/cli/editing.html
- Python Client API 8867
- Connection class duckdb. Appender Bases: object append_row ( self , * args ) → None Buffer one row, one value per column, each converted as an executemany parameter would be append_rows ( self , rows : object ) → None Buffer each row of an
...e or a list of them for a USING join, an Expression, or a function of the two sides. Types supported are ‘inner', ‘left', ‘right', ‘outer', ‘full', ‘semi', ‘anti', ‘cross', ‘positional', ‘natural' and ‘asof'. With suffix , a column of the right side w...CHAR', 'VARCHAR']), 'replace': ('replace', 0, ['VARCHAR', 'VARCHAR', 'VARCHAR']), 'reverse': ('reverse', 0, ['VARCHAR']), 'right': ('right', 0, ['VARCHAR', 'BIGINT']), 'right_grapheme': ('right_grapheme', 0, ['VARCHAR', 'BIGINT']), 'rpad': ('rpad', 0,...Arguments: source, target. SQL: replace . reverse ( * args : ValueOrExpr ) → StrExpr Reverses the string . SQL: reverse . right ( * args : ValueOrExpr ) → StrExpr Extract the right-most count characters. Arguments: count. SQL: right . right_grapheme... - https://man.mtool.work/duckdb/2.0/clients/python/reference/
- Vector Similarity Search Extension 8867
- The vss extension is an experimental extension for DuckDB that adds indexing support to accelerate vector similarity search queries using DuckDB's new fixed-size ARRAY type. See the announcement blog post and the “What's New in the Vector S
...macros to simplify matching multiple vectors against each other, so called "fuzzy joins". These are: vss_join(left_table, right_table, left_col, right_col, k, metric := 'l2sq') vss_match(right_table", left_col, right_col, k, metric := 'l2sq') These d...h_vec, vec, 3) res; ┌───────┬─────────────────────────────────┬─────────────────────────────────────┐ │ score │ left_tbl │ right_tbl │ │ float │ struct(search_vec float[3]) │ struct(id integer, vec float[3]) │ ├───────┼────────────────────────────────... - https://man.mtool.work/duckdb/2.0/core_extensions/vss.html
- ORDER BY Clause 8867
- ORDER BY is an output modifier. Logically it is applied near the very end of the query (just prior to LIMIT or OFFSET , if present). The ORDER BY clause sorts the rows on the sorting criteria in either ascending or descending order. In addi
...ULLS LAST ). ORDER BY ALL The ALL keyword indicates that the output should be sorted by every column in order from left to right. The direction of this sort may be modified using either ORDER BY ALL ASC or ORDER BY ALL DESC and/or NULLS FIRST or NULLS...y using German collation rules: SELECT * FROM addresses ORDER BY city COLLATE DE; ORDER BY ALL Examples Order from left to right (by address, then by city, then by zip) in ascending order: SELECT * FROM addresses ORDER BY ALL; address city zip 111 Duc...Duck Goose Ln Duck Town 11111-0001 111 Duck Duck Goose Ln DuckTown 11111 123 Quack Blvd DuckTown 11111 Order from left to right (by address, then by city, then by zip) in descending order: SELECT * FROM addresses ORDER BY ALL DESC; address city zip 1... - https://man.mtool.work/duckdb/2.0/sql/query_syntax/orderby.html
- SAMPLE Clause 8867
- The SAMPLE clause allows you to run the query on a sample from the base table. This can significantly speed up processing of queries, at the expense of accuracy in the result. Samples can also be used to quickly see a snapshot of the data w
...hen exploring a dataset. The sample clause is applied right after anything in the FROM clause (i.e., after any joins, but before the WHERE clause or any aggregates). See the SAMPLE p...* FROM addresses) USING SAMPLE 10 ROWS; Syntax Placement in a Query The statement above that the sample clause is "applied right after anything in the FROM clause" describes the logical point at which sampling takes effect, not where the clause is wri... - https://man.mtool.work/duckdb/2.0/sql/query_syntax/sample.html
- Profiling 8514
- Profiling is essential to help understand why certain queries exhibit specific performance characteristics. DuckDB contains several built-in features to enable query profiling, which this page covers. For a high-level example of using EXPLA
...operators adhere to the following convention: the probe side of the join is the left operand, while the build side is the right operand. Join operators in the query plan show the join type used: Inner joins are denoted as INNER . Left outer joins and...right outer joins are denoted as LEFT and RIGHT , respectively. Full outer joins are denoted as FULL . Tip To visualize query pl... - https://man.mtool.work/duckdb/2.0/dev/profiling.html
- AsOf Join 8406
- What is an AsOf Join? Time series data is not always perfectly aligned. Clocks may be slightly off, or there may be a delay between cause and effect. This can make connecting two sets of ordered data challenging. AsOf joins are a tool for s
...lues do not have a match and don't appear in the output. Outer AsOf Joins Because AsOf produces at most one match from the right hand side, the left side table will not grow as a result of the join, but it could shrink if there are missing times on th...e right. To handle this situation, you can use an outer AsOf Join: SELECT h.ticker, h.when, price * shares AS value FROM holdings...sOf join. The AsOf join is designed to match each row in the left table ( holdings ) with the nearest preceding row in the right table ( prices ) based on the when column. If you want to retrieve the when column from both tables to see both timestamps... - https://man.mtool.work/duckdb/2.0/guides/sql_features/asof_join.html
- IN Operator 8406
- The IN operator checks containment of the left expression inside the collection on the right hand side (RHS). Supported collections on the RHS are tuples, lists, and maps, as well as subqueries that return a single column. The single-column
...on lists according to the semantics used in Python. Unlike for the IN tuple operator , the presence of NULL values on the right hand side of the expression does not make a difference in the result: SELECT 'Math' IN ['CS', 'Math', NULL]; true SELECT '... - https://man.mtool.work/duckdb/2.0/sql/expressions/in.html
DuckDB 2.0 Documentation / man.mtool.work