Home  >  Article  >  Database  >  MySQL 创建索引(Create Index)的方法和语法结构及例子

MySQL 创建索引(Create Index)的方法和语法结构及例子

WBOY
WBOYOriginal
2016-06-07 18:01:131718browse

MySQL 创建索引(Create Index)的方法和语法结构及例子

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 null,
name varchar(10)
);
-- 创建普通索引
create index IDX_testNoPK_Name on testNoPK (name);
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn