mysql 截断多个表

DELIMITER //

CREATE PROCEDURE TruncateMultipleTables()
BEGIN
    DECLARE done INT DEFAULT FALSE;
    DECLARE tableName VARCHAR(255);
    DECLARE cur CURSOR FOR SELECT table_name FROM information_schema.tables WHERE table_schema = 'your_database_name' AND table_type = 'BASE TABLE';
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

    OPEN cur;

    read_loop: LOOP
        FETCH cur INTO tableName;
        IF done THEN
            LEAVE read_loop;
        END IF;
        SET @sql = CONCAT('TRUNCATE TABLE ', tableName);
        PREPARE stmt FROM @sql;
        EXECUTE stmt;
        DEALLOCATE PREPARE stmt;
    END LOOP;

    CLOSE cur;
END //

DELIMITER ;

CALL TruncateMultipleTables();