题解 | #创建索引#
创建索引
http://www.nowcoder.com/practice/f2ea9ccf33c740d58576608940981807
#在duration列创建普通索引idx_duration create index idx_duration on examination_info(duration); #在exam_id列创建唯一性索引uniq_idx_exam_id create unique index uniq_idx_exam_id on examination_info(exam_id); #在tag列创建全文索引full_idx_tag create fulltext index full_idx_tag on examination_info(tag);
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爆率13.2,