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MySQL创建索引(CreateIndex)的方法和语法结构及例子_MySQL
MySQL创建索引(CreateIndex)的方法和语法结构及例子_MySQL
时间:2021-07-01 10:21:17
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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);
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