当前位置: 数据库>mysql
MySQL 创建索引(Create Index)的方法和语法结构及例子
来源: 互联网 发布时间:2014-09-06
本文导语: CREATE INDEX Syntax CREATE [UNIQUE|FULLTEXT|SPATIAL] INDEX index_name [index_type] ON tbl_name (index_col_name,...) [index_type] index_col_name: col_name [(length)] [ASC | DESC] index_type: USING {BTREE | HASH | RTREE} 代码如下: -- 创建无索引的表格 create table testNoPK ( id int not ...
CREATE INDEX Syntax
CREATE [UNIQUE|FULLTEXT|SPATIAL] INDEX index_name
[index_type]
ON tbl_name (index_col_name,...)
[index_type]
index_col_name:
col_name [(length)] [ASC | DESC]
index_type:
USING {BTREE | HASH | RTREE}
-- 创建无索引的表格
create table testNoPK (
id int not null,
name varchar(10)
);
-- 创建普通索引
create index IDX_testNoPK_Name on testNoPK (name);
CREATE [UNIQUE|FULLTEXT|SPATIAL] INDEX index_name
[index_type]
ON tbl_name (index_col_name,...)
[index_type]
index_col_name:
col_name [(length)] [ASC | DESC]
index_type:
USING {BTREE | HASH | RTREE}
代码如下:
-- 创建无索引的表格
create table testNoPK (
id int not null,
name varchar(10)
);
-- 创建普通索引
create index IDX_testNoPK_Name on testNoPK (name);