题解 | #Where in 和Not in#
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http://www.nowcoder.com/practice/f2ea9ccf33c740d58576608940981807
CREATE INDEX idx_duration ON examination_info(duration);
create UNIQUE index uniq_idx_exam_id ON examination_info(exam_id);
create FULLTEXT index full_idx_tag ON examination_info(tag);
create index idx_duration on examination_info(duration); create unique index uniq_idx_exam_id on examination_info(exam_id); create fulltext index full_idx_tag on examination_info(tag);
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