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- Typecasting 12316
- Typecasting is an operation that converts a value in one particular data type to the closest corresponding value in another data type. Like other SQL engines, DuckDB supports both implicit and explicit typecasting. Explicit Casting Explicit
...nformation or fail for particular values. In the matrix below, rows are the source type and columns are the target type. I marks a cast the system also performs implicitly ; E marks a cast that is only available explicitly (with CAST or :: ); an empty...cell marks an unsupported cast. Even where a cast is supported, it may still fail at runtime for a particular value (for example, out... - https://man.mtool.work/duckdb/2.0/sql/data_types/typecasting.html
- Import Data 8802
- Overview The JDBC driver offers two ways to load data into DuckDB in bulk: the high-performance Appender and a JDBC batch writer. This page describes both and when to use each. Appender The Appender is available in the DuckDB JDBC driver vi
...ndRow(); } For a LIST or ARRAY column, pass a Java array as a single value, optionally with a boolean null mask where true marks the corresponding element as NULL : try (var appender = conn.createAppender("list_tbl")) { appender.beginRow(); appender.a... - https://man.mtool.work/duckdb/2.0/clients/java/data_import.html
- Prepared Statements 8451
- A prepared statement is a parameterized query. The query is prepared with question marks ( ? ) or dollar symbols ( $1 ) indicating the parameters of the query. Values can then be bound to these parameters, after which the prepared statement
... - https://man.mtool.work/duckdb/2.0/clients/c/prepared.html
- Text Functions 7397
- 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
...to_array , str_split_regex | strip_accents(string) | Description | Strips accents from string . Only combining diacritical marks are removed. Characters that are distinct letters in their own right rather than accented variants, such as ø , ł , and ß... - https://man.mtool.work/duckdb/2.0/sql/functions/text.html
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