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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