Mysql表分区实操

创建分区表

create table user(id int(11) not null,name varchar(32) not null)
partition by range(id)
(
partition p0 values less than(10),
partition p1 values less than(20),
partition p2 values less than(30),
partition p3 values less than maxvalue
)

分区表数据存储

数据存储文件将根据分区被拆分成多份

分区数据查询

构造数据

insert into user values(1,'Kobe Bryant');insert into user values(12,'Allen Iverson');insert into user values(22,'Tracy McGrady');insert into user values(50,'Vince Carter');

普通表与分区表的互转

ALTER TABLE students PARTITION BY KEY(sid) PARTITIONS 2;

移除分区信息

ALTER TABLE user remove partitioning;