mysql>ALTER TABLE `table_name` ADD PRIMARY KEY (
`column` )
2.添加UNIQUE(唯一索引)
mysql>ALTER TABLE `table_name` ADD UNIQUE
(
`column`
)
3.添加INDEX(普通索引)
mysql>ALTER TABLE `table_name`
ADD INDEX index_name ( `column` )
4.添加FULLTEXT(全文索引)
mysql>ALTER
TABLE `table_name` ADD FULLTEXT ( `column`)
5.添加多列索引
mysql>ALTER
TABLE `table_name` ADD INDEX index_name ( `column1`, `column2`, `column3` )
1.添加PRIMARY KEY(主键索引) mysqlALTER TABLE `table_name` ADD PRIMARY KEY ( `column` ) 2.添加UNIQUE(唯一索引) mysqlALTER TABLE `table_name` ADD UNIQUE ( `column` ) 3.添加INDEX(普通索引) mysqlALTER TABLE `table_name` ADD INDEX index_name ( `column` ) 4.添加FULLTEXT(全文索引) mysqlALTER TABLE `table_name` ADD FULLTEXT ( `column`) 5.添加多列索引 mysqlALTER TABLE `table_name` ADD INDEX index_name ( `column1`, `column2`, `column3` )欢迎分享,转载请注明来源:内存溢出
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