ClickHouse/docs/en/sql-reference/functions/files.md
2024-05-24 05:54:16 +02:00

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/en/sql-reference/functions/files 75 Files

file

Reads a file as string and loads the data into the specified column. The file content is not interpreted.

Also see table function file.

Syntax

file(path[, default])

Arguments

  • path — The path of the file relative to user_files_path. Supports wildcards *, **, ?, {abc,def} and {N..M} where N, M are numbers and 'abc', 'def' are strings.
  • default — The value returned if the file does not exist or cannot be accessed. Supported data types: String and NULL.

Example

Inserting data from files a.txt and b.txt into a table as strings:

INSERT INTO table SELECT file('a.txt'), file('b.txt');