關於「Mysql ALTER TABLE index」標籤，搜尋引擎有相關的訊息討論：

How do I add indexes to MySQL tables? - Stack Overflowstackoverflow.com › questions › how-do-i-add-indexes-to-...MySQL 8.4 Reference Manual :: 15.1.9 ALTER TABLE Statementdev.mysql.com › doc › alter-tableMysql - Alter table statement to create unique index on long text fieldsta