SQL语句 - 条件中的条件？

Question

I have a table where each record contains the time, represented by an hour column (int) and a minute column (int) .For example:

**records |hours| mins**
record1 |  15 |  30
record2 |  12 |  25

I want to write a statement where only the records ahead of the current time will be displayed. So far, I have:

SELECT... 

WHERE hours >= hour(current_time)
AND
mins >= minute(current_time)
AND...

But this doesn't work because it needs both the hours and mins to be greater than the current hours and minutes. How do I write to that so that if the hours are the same, then the minutes are compared?

Answer 1

Do something like this:

WHERE  hours >= hour(current_time)
OR  (hours = hour(current_time) AND mins >= minute(currentime))

Answer 2

就像是

Where hours * 60 + mins > hours(currentTime) * 60 + minute(currentTime)