php - Mysql的两个比较函数

Question

我如何使用两个比较 mysql 函数？

像这样：

第一的

 GROUP BY 
      data_raport HAVING hours <= '8:00'

第二

GROUP BY 
  data_raport HAVING hours > '8:00' but not higher than < 14

第三

GROUP BY 
  data_raport HAVING hours > '14:00' but not higher than < 24

Answer 1

您是否正在寻找类似AND关键字的内容：
GROUP BY data_raport HAVING hours > '8:00' AND hours < '14:00'

或者您想将第二组和第三组组合在一起，不完全确定！？