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- LIMIT and OFFSET Clauses 13033
- LIMIT is an output modifier. Logically it is applied at the very end of the query. The LIMIT clause restricts the amount of rows fetched. The OFFSET clause indicates at which position to start reading the values, i.e., the first OFFSET valu
...ddresses table: SELECT * FROM addresses LIMIT 5; Select the 5 rows from the addresses table, starting at position 5 (i.e., ignoring the first 5 rows): SELECT * FROM addresses LIMIT 5 OFFSET 5; Select the top 5 cities with the highest population: SELECT c... - https://man.mtool.work/duckdb/2.0/sql/query_syntax/limit.html
- Python Client API 9011
- 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
..., last_value , lag , lead and nth_value . ilike ( pattern : object , * , escape : str | None = None ) → Expression like , ignoring case. is_not_null ( ) → Expression Whether this is not NULL. is_null ( ) → Expression Whether this is NULL. Not the same a...ueOrExpr ) → Expression The most frequent value. SQL: mode . n_unique ( ) → Expression How many distinct values there are, ignoring NULL. nulls_first ( ) → Expression Where NULLs sort. Leaves the direction as it was, so the connection's default holds unt...ngs of equal length. Arguments: s2. SQL: hamming . ilike_escape ( * args : ValueOrExpr ) → Expression Matches the pattern, ignoring case. Arguments: like_specifier, escape_character. SQL: ilike_escape . instr ( * args : ValueOrExpr ) → Expression Where t... - https://man.mtool.work/duckdb/2.0/clients/python/reference/
- Full-Text Search Extension 9011
- Full-Text Search is an extension to DuckDB that allows for search through strings, similar to SQLite's FTS5 extension . Installing and Loading The fts extension will be transparently autoloaded on first use from the official extension repos
...d list of 571 English stopwords ignore VARCHAR Regular expression of patterns to be ignored. Defaults to '(\\.|[^a-z])+' , ignoring all escaped and non-alphabetic lowercase characters strip_accents BOOLEAN Whether to remove accents (e.g., convert á to a... - https://man.mtool.work/duckdb/2.0/core_extensions/full_text_search.html
- MySQL Extension 8353
- The mysql extension allows DuckDB to directly read and write data from/to a running MySQL instance. The data can be queried directly from the underlying MySQL database. Data can be loaded from MySQL tables into DuckDB tables, or vice versa.
...zero month or day as NULL s false mysql_pool_acquire_mode How to acquire connections from the pool: force (always connect, ignoring the pool limit), wait (block until one is available), or try (fail immediately if none is available) force mysql_pool_conn... - https://man.mtool.work/duckdb/2.0/core_extensions/mysql.html
- Conversion between DuckDB and Python 7677
- This page documents the rules for converting DuckDB results to Python and Python objects to DuckDB . Result Conversion: DuckDB Results to Python A result is read from a relation or, when using the DB-API / con.execute() , from the connectio
...─┘ A STRUCT type, as a return type or as the type of a duckdb.Value , takes each field from the dict key of the same name, ignoring case. A dict whose keys do not match the fields raises InvalidInputException: We could not convert the object ... to the d... - https://man.mtool.work/duckdb/2.0/clients/python/conversion.html
- Expression API 7677
- The Expression class represents an instance of an expression . Why Would I Use the Expression API? Use expressions to build filters and computed columns in Python. They are useful when column names or conditions depend on your code. import
...n is between low and high , both included .like(pattern) , .ilike(pattern) Matches the text against a LIKE pattern , ilike ignoring case .is_null() Checks whether the expression is NULL .is_not_null() Checks whether the expression is not NULL .collate(co... - https://man.mtool.work/duckdb/2.0/clients/python/expression.html
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