MySQL 查詢昨天中午12點到今天中午12點的數據

這個字段是格式化的時間字段

SELECT * FROM gs_custom_yuanxiaozixun WHERE tbdate >= CONCAT(DATE_FORMAT(DATE_SUB(NOW(),INTERVAL 1 DAY),'%Y-%m-%d'),' 12:00:00') AND tbdate <= CONCAT(DATE_FORMAT(DATE_SUB(NOW(),INTERVAL 0 DAY),'%Y-%m-%d'),' 12:00:00')

 

這個字段是時間戳

select count(*) as total from {$dbtbpre}enewsmember WHERE FROM_UNIXTIME(registertime) >= CONCAT(DATE_FORMAT(DATE_SUB(NOW(),INTERVAL 1 DAY),'%Y-%m-%d'),' 24:00:00') AND FROM_UNIXTIME(registertime) <= CONCAT(DATE_FORMAT(DATE_SUB(NOW(),INTERVAL 0 DAY),'%Y-%m-%d'),' 24:00:00')