mysql - 带有计算的sql select语句

Question

我想选择所有具有特定状态且created_at超过24小时的卡车

这是我尝试过的

SELECT * FROM tbl_trucks WHERE `truck_status` != 11

现在我陷入了如何添加额外的 where 语句的困境，这样我就只能获得距离当前时间超过 24 小时的卡车。从字面意义上来说，这将是

 SELECT * FROM tbl_trucks WHERE `truck_status` != 11
      ANDWHERE ('created_at'-NOW() <0 ) //created_at passes 24 hours

在通常的 php 中，这将转换为

 $created_at= 1500373706; // created_At value in mysql db

if ((time() - $created_at) > 86400) { //past 24 hours mark
     //past 24 hours i need these
  } else {
     //not past 24 hours i dont need them
 }

Answer 1

它是这样的:

SELECT t.*
FROM tbl_trucks t
WHERE t.truck_status <> 11 AND
      t.created_at < DATE_SUB(NOW(), INTERVAL 24 HOUR);