摘要: 众所周知,MySQL创建索引有两种语法,即: ALTER TABLE HeadOfState ADD INDEX (LastName, FirstName);CREATE INDEX index_name HeadOfState (LastName, FirstName); create index 阅读全文
posted @ 2023-05-11 14:25 张载zz 阅读(369) 评论(0) 推荐(0) 编辑