一.创建订单表orders ：

CREATE TABLE orders (
    order_id INT NOT NULL,
    order_date DATE NOT NULL,
    amount DECIMAL(10, 2) NOT NULL
) PARTITION BY RANGE (YEAR(order_date)) (
    PARTITION p0 VALUES LESS THAN (1991),
    PARTITION p1 VALUES LESS THAN (1992),
    PARTITION p2 VALUES LESS THAN (1993),
    PARTITION p3 VALUES LESS THAN (1994),
    PARTITION pmax VALUES LESS THAN MAXVALUE
);

测试看看 INSERT INTO orders(order_id, order_date, amount) VALUES(1,'1992-01-01',10.1)

二.更改表为按月分区存储

ALTER TABLE orders 
 PARTITION BY RANGE (MONTH(order_date)) (
    PARTITION p0 VALUES LESS THAN (2),
    PARTITION p1 VALUES LESS THAN (3),
    PARTITION p2 VALUES LESS THAN (4),
    PARTITION p3 VALUES LESS THAN (5),
    PARTITION pmax VALUES LESS THAN MAXVALUE
);