题解 | #删除索引#
删除索引
http://www.nowcoder.com/practice/4963f6d63dde48d787aaa2b43460fb4b
方法一： alter table examination_info drop index uniq_idx_exam_id; alter table examination_info drop index full_idx_tag; 方法二： drop index uniq_idx_exam_id on examination_info; drop index full_idx_tag on examination_info;