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- Text Functions 12353
- 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
...rse_dirname(path[, separator]) Returns the top-level directory name from the given path . separator options: system , both_slash (default), forward_slash , backslash . parse_dirpath(path[, separator]) Returns the head of the path (the pathname until t...he last slash) similarly to Python's os.path.dirname . separator options: system , both_slash (default), forward_slash , backslash . par...ion. If trim_extension is true , the file extension will be removed (defaults to false ). separator options: system , both_slash (default), forward_slash , backslash . parse_path(path[, separator]) Returns a list of the components (directories and fil... - https://man.mtool.work/duckdb/2.0/sql/functions/text.html
- File Access with the file: Protocol 8894
- DuckDB supports using the file: protocol. It currently supports the following formats: file:/some/path (host omitted completely) file:///some/path (empty host) file://localhost/some/path ( localhost as host) Note that the following formats
...are not supported because they are non-standard: file:some/relative/path (relative path) file://some/path (double-slash path) Additionally, the file: protocol currently does not support remote (non-localhost) hosts.... - https://man.mtool.work/duckdb/2.0/guides/file_formats/file_access.html
- Reading Multiple Files 8007
- DuckDB can read multiple files of different types (CSV, Parquet, JSON files) at the same time using either the glob syntax, or by providing a list of files to read. See the combining schemas page for tips on reading files with different sch
...directories: SELECT * FROM read_parquet('dir'); This reads the same files as read_parquet('dir/**/*.parquet') . A trailing slash on the directory path is optional. In contrast, read_parquet('dir/*.parquet') reads only files directly inside dir . Files... - https://man.mtool.work/duckdb/2.0/data/multiple_files/overview.html
- Azure Extension 7711
- The azure extension lets DuckDB read and write files in Azure Blob Storage and Azure Data Lake Storage (ADLS) Gen2. Installing and Loading The azure extension will be transparently autoloaded on first use from the official extension reposit
...ne different secrets for different storage accounts, use the SCOPE configuration . Note that the SCOPE requires a trailing slash ( SCOPE 'az://⟨my_storage_account⟩.blob.core.windows.net/' ). With fully qualified paths, ACCOUNT_NAME is optional. For pa... - https://man.mtool.work/duckdb/2.0/core_extensions/azure.html
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