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2020-10-24 阅读量: 627
mysql如何创建临时表

创建:

create table tmp_(SELECT
*
FROM
shzy.social_qd_db_all_dxy a
WHERE
1 = 1
and pz_date >= DATE_FORMAT('2019-03-25 10:01:01','%Y-%m-%d %H:%i:%s')
and pz_date <= DATE_FORMAT('2019-03-25 10:15:00','%Y-%m-%d %H:%i:%s')
);

查询:

select a.* from tmp_ a ,tmp_ b where a.cph!=b.cph 
and 0 < TIMESTAMPDIFF(MINUTE, a.pz_date, b.pz_date)<10
and 0 < TIMESTAMPDIFF(MINUTE, a.mz_date, b.mz_date)<10
and 0 < a.mz - b.mz <500;


删除:

drop table shzy.tmp_;



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