How to perform 'Async Check File Exists' in SQL.
-- Task: Async Check File Exists
-- Language: SQL
CREATE PROCEDURE async_check_file_exists() BEGIN
-- Implementation for Async Check File Exists
DECLARE result = ...; -- Initialize variable
-- TODO: Implement core logic here
-- Step 1: Prepare data
-- Step 2: Process Async Check File Exists
SELECT("Done");
END