CREATE TABLE IF NOT EXISTS #tableName# ( id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, `value` TEXT NOT NULL, created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP, created_by VARCHAR(255) NOT NULL DEFAULT '' ) ALTER TABLE #tableName# ADD COLUMN IF NOT EXISTS created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ALTER TABLE #tableName# ADD COLUMN IF NOT EXISTS created_by VARCHAR(255) NOT NULL DEFAULT ''