mysql 分區學習

分區字段必須在主鍵內

CREATE TABLE employees (
    id INT NOT NULL,
    fname VARCHAR(30),
    lname VARCHAR(30),
    hired DATE NOT NULL DEFAULT '1970-01-01',
    separated DATE NOT NULL DEFAULT '9999-12-31',
    job_code INT NOT NULL,
    store_id INT NOT NULL
)
// 新建範圍分區
PARTITION BY RANGE (store_id) (
    PARTITION p0 VALUES LESS THAN (6),
    PARTITION p1 VALUES LESS THAN (11),
    PARTITION p2 VALUES LESS THAN (16),
    PARTITION p3 VALUES LESS THAN MAXVALUE
);

//刪除分區
alter table employees drop partition p0;


//查看分區
SELECT PARTITION_NAME
FROM INFORMATION_SCHEMA.PARTITIONS
WHERE TABLE_NAME = 'employees';

select *  from employees