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With the UTL_FILE package, PL/SQL programs can read and write operating system text files. UTL_FILE provides a restricted version of operating system stream file I/O.
- 264 Utl_encode
The UTL_ENCODE package provides functions that encode RAW...
- Create Directory
For file storage, you must also create a corresponding...
- 168 UTL_FILE
UTL_FILE I/O capabilities are similar to standard operating...
- 264 Utl_encode
When you want to read or write a text file, you call the function fopen, which returns a file handle for use in subsequent procedure calls. For example, the procedure put_line writes a text string and line terminator to an open file, and the procedure get_line reads a line of text from an open file into an output buffer.
UTL_FILE I/O capabilities are similar to standard operating system stream file I/O (OPEN, GET, PUT, CLOSE) capabilities, but with some limitations. For example, you call the FOPEN function to return a file handle, which you use in subsequent calls to GET_LINE or PUT to perform stream I/O to a file.
The UTL_FILE.FOPEN function is part of Oracle’s UTL_FILE package, which allows PL/SQL programs to interact with operating system files—reading from and writing to files located on the database server. This is particularly useful for handling file I/O operations like creating, reading, and writing text files directly from PL/SQL.
UTL_FILE.fopen: This function opens the file that needs to be processed (read or write). UTL_FILE.FOPEN ( location IN VARCHAR2, filename IN VARCHAR2, open_mode IN VARCHAR2, max_linesize IN BINARY_INTEGER DEFAULT 1024) RETURN FILE_TYPE; The input parameters are: location: Directory location of file.
FOPEN returns a file handle, which must be passed to all subsequent procedures that operate on that file. The specific contents of the file handle are private to the UTL_FILE package, and individual components should not be referenced or changed by the UTL_FILE user.
UTL_FILE I/O capabilities are similar to standard operating system stream file I/O (OPEN, GET, PUT, CLOSE) capabilities, but with some limitations. For example, you call the FOPEN function to return a file handle, which you use in subsequent calls to GET_LINE or PUT to perform stream I/O to a file.
