标签:ext col uniq alter ima primary text 主键 lte
1.PRIMARY KEY(主键索引)
mysql>ALTER TABLE `table_name` ADD PRIMARY KEY ( `column` )
2.UNIQUE(唯一索引)
mysql>ALTER TABLE `table_name` ADD UNIQUE (`column` )
3.INDEX(普通索引)
mysql>ALTER TABLE `table_name` ADD INDEX index_name ( `column` )
4.FULLTEXT(全文索引)
mysql>ALTER TABLE `table_name` ADD FULLTEXT ( `column` )
5.多列索引
mysql>ALTER TABLE `table_name` ADD INDEX index_name ( `column1`, `column2`, `column3` )
标签:ext col uniq alter ima primary text 主键 lte
原文地址:https://www.cnblogs.com/tongcc/p/12455866.html