mysql分区类型 分区类型 ? 1、RANGE分区 ? 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
mysql分区类型分区类型
?
1、RANGE分区
?
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
)
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 (21)
)；
?
2、LIST分区
?
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,
? ? store_id INT
)
PARTITION BY LIST(store_id)
? ? PARTITION pNorth VALUES IN (3,5,6,9,17),
? ? PARTITION pEast VALUES IN (1,2,10,11,19,20),
? ? PARTITION pWest VALUES IN (4,12,13,14,18),
? ? PARTITION pCentral VALUES IN (7,8,15,16)
)；
?
3、HASH分区
?
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,
? ? store_id INT
)
PARTITION BY HASH(YEAR(hired))
PARTITIONS 4；
?
4、KEY分区
?
5、子分区
下载本文