mysql 查詢某個日期時間段,每天同一時間段的數據

mysql 查詢某個日期時間段,每天同一時間段的數據:

 

SELECT * FROM t_a01_eltable WHERE DATE_FORMAT(acqtime,'%Y-%m-%d')>='2016-01-01' AND DATE_FORMAT(acqtime,'%Y-%m-%d')<='2016-05-20' AND DATE_FORMAT(acqtime,'%H')>=18 AND DATE_FORMAT(acqtime,'%H')<=19;