How to perform 'Async Base64 Decode' in SQL.
-- Task: Async Base64 Decode
-- Language: SQL
CREATE PROCEDURE async_base64_decode() BEGIN
-- Implementation for Async Base64 Decode
DECLARE result = ...; -- Initialize variable
-- TODO: Implement core logic here
-- Step 1: Prepare data
-- Step 2: Process Async Base64 Decode
SELECT("Done");
END