Oracle Spool Command Parameters Explained

In Oracle, the spool command is used to output the results of an SQL query to a file. It includes parameters such as:

1. File name: designates the output file’s name.
2. APPEND: Optional parameter, if included, content will be appended to the end of the file. Otherwise, existing content will be overwritten.
3. OFF: Disable spooling function, stop writing query results to a file.
4. Redirect the spool output to the specified file.
5. Output the query result in HTML format.
6. SQL: Output the query results in SQL format.
7. Replace the original file if it already exists.
8. TRUNCATE: Clears the existing content if the file already exists.